Add doc/html/string_view.html

Update string_ref_test2.cpp

OptionalPointee.html

@@ -57,10 +57,7 @@ aliasing.
   </TR>
   <TR>
     <TD VAlign=top>Validity Test</TD>
-    <TD VAlign=top>&nbsp;<tt>t</tt><br>
-     &nbsp;<tt>t != 0</tt><br>
-     &nbsp;<tt>!!t</tt>
-     </TD>
+    <TD VAlign=top>&nbsp;<tt>bool(t)</tt></TD>
     <TD VAlign=top>&nbsp;bool </TD>
     <TD VAlign=top>If the pointee is valid returns true.<br>
       If the pointee is invalid returns false.</TD>
@@ -68,9 +65,7 @@ aliasing.
   </TR>
   <TR>
     <TD VAlign=top>Invalidity Test</TD>
-    <TD VAlign=top>&nbsp;<tt>t == 0</tt><br>
-                   &nbsp;<tt>!t</tt>
-    </TD>
+    <TD VAlign=top>&nbsp;<tt>!t</tt></TD>
     <TD VAlign=top>&nbsp;bool </TD>
     <TD VAlign=top>If the pointee is valid returns false.<br>
       If the pointee is invalid returns true.</TD>
@@ -161,4 +156,4 @@ so direct usage of relational operators with the implied aliasing of shallow sem
 <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a></p>
 
 </BODY>
-</HTML>
+</HTML>

addressof_fn_test.cpp

@@ -1,76 +0,0 @@
-#include <boost/config.hpp>
-
-#if defined(BOOST_MSVC)
-#pragma warning(disable: 4786)  // identifier truncated in debug info
-#pragma warning(disable: 4710)  // function not inlined
-#pragma warning(disable: 4711)  // function selected for automatic inline expansion
-#pragma warning(disable: 4514)  // unreferenced inline removed
-#endif
-
-//  addressof_fn_test.cpp: addressof( f )
-//
-//  Copyright (c) 2008, 2009 Peter Dimov
-//
-//  Distributed under the Boost Software License, Version 1.0.
-//  See accompanying file LICENSE_1_0.txt or copy at
-//  http://www.boost.org/LICENSE_1_0.txt
-
-#include <boost/utility/addressof.hpp>
-#include <boost/detail/lightweight_test.hpp>
-
-
-void f0()
-{
-}
-
-void f1(int)
-{
-}
-
-void f2(int, int)
-{
-}
-
-void f3(int, int, int)
-{
-}
-
-void f4(int, int, int, int)
-{
-}
-
-void f5(int, int, int, int, int)
-{
-}
-
-void f6(int, int, int, int, int, int)
-{
-}
-
-void f7(int, int, int, int, int, int, int)
-{
-}
-
-void f8(int, int, int, int, int, int, int, int)
-{
-}
-
-void f9(int, int, int, int, int, int, int, int, int)
-{
-}
-
-int main()
-{
-    BOOST_TEST( boost::addressof( f0 ) == &f0 );
-    BOOST_TEST( boost::addressof( f1 ) == &f1 );
-    BOOST_TEST( boost::addressof( f2 ) == &f2 );
-    BOOST_TEST( boost::addressof( f3 ) == &f3 );
-    BOOST_TEST( boost::addressof( f4 ) == &f4 );
-    BOOST_TEST( boost::addressof( f5 ) == &f5 );
-    BOOST_TEST( boost::addressof( f6 ) == &f6 );
-    BOOST_TEST( boost::addressof( f7 ) == &f7 );
-    BOOST_TEST( boost::addressof( f8 ) == &f8 );
-    BOOST_TEST( boost::addressof( f9 ) == &f9 );
-
-    return boost::report_errors();
-}

addressof_test.cpp

@@ -1,94 +0,0 @@
-// Copyright (C) 2002 Brad King (brad.king@kitware.com) 
-//                    Douglas Gregor (gregod@cs.rpi.edu)
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// For more information, see http://www.boost.org
-
-
-#include <boost/utility/addressof.hpp>
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-#pragma warning(push, 3)
-#endif
-
-#include <iostream>
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-#pragma warning(pop)
-#endif
-
-#include <boost/detail/lightweight_test.hpp>
-
-template<class T> void scalar_test( T * = 0 )
-{
-    T* px = new T();
-
-    T& x = *px;
-    BOOST_TEST( boost::addressof(x) == px );
-
-    const T& cx = *px;
-    const T* pcx = boost::addressof(cx);
-    BOOST_TEST( pcx == px );
-
-    volatile T& vx = *px;
-    volatile T* pvx = boost::addressof(vx);
-    BOOST_TEST( pvx == px );
-
-    const volatile T& cvx = *px;
-    const volatile T* pcvx = boost::addressof(cvx);
-    BOOST_TEST( pcvx == px );
-
-    delete px;
-}
-
-template<class T> void array_test( T * = 0 )
-{
-    T nrg[3] = {1,2,3};
-    T (*pnrg)[3] = &nrg;
-    BOOST_TEST( boost::addressof(nrg) == pnrg );
-
-    T const cnrg[3] = {1,2,3};
-    T const (*pcnrg)[3] = &cnrg;
-    BOOST_TEST( boost::addressof(cnrg) == pcnrg );
-}
-
-struct addressable
-{
-    addressable( int = 0 )
-    {
-    }
-};
-
-struct useless_type {};
-
-class nonaddressable {
-public:
-
-    nonaddressable( int = 0 )
-    {
-    }
-
-    void dummy(); // Silence GCC warning: all member of class are private
-
-private:
-
-    useless_type operator&() const;
-};
-
-int main()
-{
-    scalar_test<char>();
-    scalar_test<int>();
-    scalar_test<addressable>();
-    scalar_test<nonaddressable>();
-
-    array_test<char>();
-    array_test<int>();
-    array_test<addressable>();
-    array_test<nonaddressable>();
-
-    return boost::report_errors();
-}

addressof_test2.cpp

@@ -1,95 +0,0 @@
-// Copyright (C) 2002 Brad King (brad.king@kitware.com) 
-//                    Douglas Gregor (gregod@cs.rpi.edu)
-//
-// Copyright 2009 Peter Dimov
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// For more information, see http://www.boost.org
-
-
-#include <boost/utility/addressof.hpp>
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-#pragma warning(push, 3)
-#endif
-
-#include <iostream>
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-#pragma warning(pop)
-#endif
-
-#include <boost/detail/lightweight_test.hpp>
-
-template<class T> void scalar_test( T * = 0 )
-{
-    T* px = new T();
-
-    T& x = *px;
-    BOOST_TEST( boost::addressof(x) == px );
-
-    const T& cx = *px;
-    const T* pcx = boost::addressof(cx);
-    BOOST_TEST( pcx == px );
-
-    volatile T& vx = *px;
-    volatile T* pvx = boost::addressof(vx);
-    BOOST_TEST( pvx == px );
-
-    const volatile T& cvx = *px;
-    const volatile T* pcvx = boost::addressof(cvx);
-    BOOST_TEST( pcvx == px );
-
-    delete px;
-}
-
-template<class T> void array_test( T * = 0 )
-{
-    T nrg[3] = {1,2,3};
-    T (*pnrg)[3] = &nrg;
-    BOOST_TEST( boost::addressof(nrg) == pnrg );
-
-    T const cnrg[3] = {1,2,3};
-    T const (*pcnrg)[3] = &cnrg;
-    BOOST_TEST( boost::addressof(cnrg) == pcnrg );
-}
-
-class convertible {
-public:
-
-    convertible( int = 0 )
-    {
-    }
-
-    template<class U> operator U () const
-    {
-        return U();
-    }
-};
-
-class convertible2 {
-public:
-
-    convertible2( int = 0 )
-    {
-    }
-
-    operator convertible2* () const
-    {
-        return 0;
-    }
-};
-
-int main()
-{
-    scalar_test<convertible>();
-    scalar_test<convertible2>();
-
-    array_test<convertible>();
-    array_test<convertible2>();
-
-    return boost::report_errors();
-}

assert.html

@@ -1,115 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
-<html>
-	<head>
-		<title>Boost: assert.hpp documentation</title>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-	</head>
-	<body bgcolor="white" style="MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%">
-		<table border="0" width="100%">
-			<tr>
-				<td width="277"><A href="../../index.htm"> <img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86" border="0"></A>
-				</td>
-				<td align="center">
-					<h1>assert.hpp</h1>
-				</td>
-			</tr>
-			<tr>
-				<td colspan="2" height="64">&nbsp;</td>
-			</tr>
-		</table>
-		<p>
-			<a href="#BOOST_ASSERT">BOOST_ASSERT</a><br>
-            <a href="#BOOST_ASSERT_MSG">BOOST_ASSERT_MSG</a><br>
-            <a href="#BOOST_VERIFY">BOOST_VERIFY</a></p>
-            
-<h2><a name="BOOST_ASSERT">BOOST_ASSERT</a></h2>
-		<p>
-			The header <STRONG>&lt;boost/assert.hpp&gt;</STRONG> defines the macro <b>BOOST_ASSERT</b>, 
-			which is similar to the standard <STRONG>assert</STRONG> macro defined in <STRONG>&lt;cassert&gt;</STRONG>. 
-			The macro is intended to be used in both Boost libraries and user 
-            code.
-		</p>
-		<P>By default, <tt>BOOST_ASSERT(expr)</tt> is equivalent to <tt>assert(expr)</tt>.</P>
-		<P>If the macro <STRONG>BOOST_DISABLE_ASSERTS</STRONG> is defined when <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
-			is included, <tt>BOOST_ASSERT(expr)</tt> is defined as <tt>((void)0)</tt>. This 
-			allows users to selectively disable <STRONG>BOOST_ASSERT</STRONG> without 
-			affecting the definition of the standard <STRONG>assert</STRONG>.</P>
-		<P>If the macro <STRONG>BOOST_ENABLE_ASSERT_HANDLER</STRONG> is defined when <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
-			is included, <tt>BOOST_ASSERT(expr)</tt> evaluates <b>expr</b> and, if the 
-			result is false, evaluates the expression</P>
-		<blockquote>
-		<P><tt>::boost::assertion_failed(#expr, <a href="current_function.html">BOOST_CURRENT_FUNCTION</a>, 
-				__FILE__, __LINE__)</tt></P>
-		</blockquote>
-		<P><STRONG>assertion_failed</STRONG> is declared in <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
-			as</P>
-		<blockquote>
-		<pre>namespace boost
-{
-  void assertion_failed(char const * expr, char const * function, char const * file, long line);
-}
-</pre>
-		</blockquote>
-		<p>but it is never defined. The user is expected to supply an appropriate 
-			definition.</p>
-		<P>As is the case with <STRONG>&lt;cassert&gt;</STRONG>, <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
-			can be included multiple times in a single translation unit. <STRONG>BOOST_ASSERT</STRONG>
-			will be redefined each time as specified above.</P>
-			
-<h2><a name="BOOST_ASSERT_MSG">BOOST_ASSERT_MSG</a></h2>
-		<p>
-			The header <STRONG>&lt;boost/assert.hpp&gt;</STRONG> defines the macro <b>BOOST_ASSERT_MSG</b>, 
-			which is similar to the standard <STRONG>assert</STRONG> macro defined in <STRONG>&lt;cassert&gt;</STRONG>, 
-            but with an additional macro parameter supplying an error message. The macro is intended to be used in both Boost libraries 
-            and user code.
-		</p>
-		<P> <tt>BOOST_ASSERT_MSG(expr, msg)</tt> is equivalent to <code>
-        ((void)0)</code> if <b>BOOST_DISABLE_ASSERTS</b> or <b>NDEBUG</b> are 
-        defined or <code>expr</code> evaluates to <code>true</code>. If those 
-        macros and <STRONG>BOOST_ENABLE_ASSERT_HANDLER</STRONG> are not 
-        defined, and <code>expr</code> evaluates to <code>false</code>, an error 
-        message that includes <tt>#expr</tt>, <tt>msg</tt>, <tt> <a href="current_function.html">BOOST_CURRENT_FUNCTION</a></tt>, <tt>
-        __FILE__</tt>, and <tt>__LINE__</tt> is sent to output stream <b>
-        BOOST_ASSERT_MSG_OSTREAM</b> 
-        and <code>std::abort()</code> is called.</P>
-		<P> <b>BOOST_ASSERT_MSG_OSTREAM</b> defines the output stream. It defaults to <code>std::cerr</code>. 
-        Integrated development environments (IDE's) like Microsoft Visual Studio 
-        may produce easier to understand output if messages go to a different 
-        stream, such as <code>std::cout</code>. Users may define <b>BOOST_ASSERT_MSG_OSTREAM</b> before including <STRONG>&lt;boost/assert.hpp&gt;</STRONG> 
-        to specify a different output stream.&nbsp; </P>
-		<P>If the macro <STRONG>BOOST_ENABLE_ASSERT_HANDLER</STRONG> is defined when <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
-			is included, instead of sending a error message to an output 
-        stream, this expression is evaluated</P>
-		<blockquote>
-		<P><tt>::boost::assertion_failed_msg(#expr, msg, <a href="current_function.html">BOOST_CURRENT_FUNCTION</a>, 
-				__FILE__, __LINE__)</tt></P>
-		</blockquote>
-		<P><STRONG>assertion_failed_msg</STRONG> is declared in <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
-			as</P>
-		<blockquote>
-		<pre>namespace boost
-{
-  void assertion_failed_msg(char const * expr, char const * msg, char const * function, char const * file, long line);
-}
-</pre>
-		</blockquote>
-		<p>but it is never defined. The user is expected to supply an appropriate 
-			definition.</p>
-		<P>As is the case with <STRONG>&lt;cassert&gt;</STRONG>, <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
-			can be included multiple times in a single translation unit. <STRONG>BOOST_ASSERT_MSG</STRONG>
-			will be redefined each time as specified above.</P>
-			
-<h2><a name="BOOST_VERIFY">BOOST_VERIFY</a></h2>
-		<p><STRONG>&lt;boost/assert.hpp&gt;</STRONG> also defines the macro <STRONG>BOOST_VERIFY</STRONG>. 
-			It has exactly the same behavior as <STRONG>BOOST_ASSERT</STRONG>, except that 
-			the expression that is passed to <STRONG>BOOST_VERIFY</STRONG> is always 
-			evaluated. This is useful when the asserted expression has desirable side 
-			effects; it can also help suppress warnings about unused variables when the 
-			only use of the variable is inside an assertion.</p>
-		<p><br>
-			<small>Copyright <20> 2002, 2007 by Peter Dimov.&nbsp; Copyright <20> 2011 
-        by Beman Dawes. Distributed under the Boost Software 
-				License, Version 1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A>
-				or copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
-	</body>
-</html>

assert_test.cpp

@@ -1,153 +0,0 @@
-//
-//  assert_test.cpp - a test for boost/assert.hpp
-//
-//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
-//  Copyright (2) Beman Dawes 2011
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#include <boost/detail/lightweight_test.hpp>
-
-#include <boost/assert.hpp>
-
-void test_default()
-{
-    int x = 1;
-
-    BOOST_ASSERT(1);
-    BOOST_ASSERT(x);
-    BOOST_ASSERT(x == 1);
-    BOOST_ASSERT(&x);
-
-    BOOST_ASSERT_MSG(1, "msg");
-    BOOST_ASSERT_MSG(x, "msg");
-    BOOST_ASSERT_MSG(x == 1, "msg");
-    BOOST_ASSERT_MSG(&x, "msg");
-}
-
-#define BOOST_DISABLE_ASSERTS
-#include <boost/assert.hpp>
-
-void test_disabled()
-{
-    int x = 1;
-
-    BOOST_ASSERT(1);
-    BOOST_ASSERT(x);
-    BOOST_ASSERT(x == 1);
-    BOOST_ASSERT(&x);
-
-    BOOST_ASSERT_MSG(1, "msg");
-    BOOST_ASSERT_MSG(x, "msg");
-    BOOST_ASSERT_MSG(x == 1, "msg");
-    BOOST_ASSERT_MSG(&x, "msg");
-
-    BOOST_ASSERT(0);
-    BOOST_ASSERT(!x);
-    BOOST_ASSERT(x == 0);
-
-    BOOST_ASSERT_MSG(0, "msg");
-    BOOST_ASSERT_MSG(!x, "msg");
-    BOOST_ASSERT_MSG(x == 0, "msg");
-
-    void * p = 0;
-
-    BOOST_ASSERT(p);
-    BOOST_ASSERT_MSG(p, "msg");
-
-    // supress warnings
-    p = &x;
-    p = &p;
-}
-
-#undef BOOST_DISABLE_ASSERTS
-
-#define BOOST_ENABLE_ASSERT_HANDLER
-#include <boost/assert.hpp>
-#include <boost/config.hpp>
-#include <cstdio>
-
-int handler_invoked = 0;
-int msg_handler_invoked = 0;
-
-void boost::assertion_failed(char const * expr, char const * function, char const * file, long line)
-{
-#if !defined(BOOST_NO_STDC_NAMESPACE)
-    using std::printf;
-#endif
-
-    printf("Expression: %s\nFunction: %s\nFile: %s\nLine: %ld\n\n", expr, function, file, line);
-    ++handler_invoked;
-}
-
-void boost::assertion_failed_msg(char const * expr, char const * msg, char const * function,
-  char const * file, long line)
-{
-#if !defined(BOOST_NO_STDC_NAMESPACE)
-    using std::printf;
-#endif
-
-    printf("Expression: %s Message: %s\nFunction: %s\nFile: %s\nLine: %ld\n\n",
-      expr, msg, function, file, line);
-    ++msg_handler_invoked;
-}
-
-struct X
-{
-    static void f()
-    {
-        BOOST_ASSERT(0);
-        BOOST_ASSERT_MSG(0, "msg f()");
-    }
-};
-
-void test_handler()
-{
-    int x = 1;
-
-    BOOST_ASSERT(1);
-    BOOST_ASSERT(x);
-    BOOST_ASSERT(x == 1);
-    BOOST_ASSERT(&x);
-
-    BOOST_ASSERT_MSG(1, "msg2");
-    BOOST_ASSERT_MSG(x, "msg3");
-    BOOST_ASSERT_MSG(x == 1, "msg4");
-    BOOST_ASSERT_MSG(&x, "msg5");
-
-    BOOST_ASSERT(0);
-    BOOST_ASSERT(!x);
-    BOOST_ASSERT(x == 0);
-
-    BOOST_ASSERT_MSG(0,"msg 0");
-    BOOST_ASSERT_MSG(!x, "msg !x");
-    BOOST_ASSERT_MSG(x == 0, "msg x == 0");
-
-    void * p = 0;
-
-    BOOST_ASSERT(p);
-    BOOST_ASSERT_MSG(p, "msg p");
-
-    X::f();
-
-    BOOST_ASSERT(handler_invoked == 5);
-    BOOST_TEST(handler_invoked == 5);
-
-    BOOST_ASSERT_MSG(msg_handler_invoked == 5, "msg_handler_invoked count is wrong");
-    BOOST_TEST(msg_handler_invoked == 5);
-}
-
-#undef BOOST_ENABLE_ASSERT_HANDLER
-#undef BOOST_ENABLE_ASSERT_MSG_HANDLER
-
-int main()
-{
-    test_default();
-    test_disabled();
-    test_handler();
-
-    return boost::report_errors();
-}

base_from_member.html

@@ -1,371 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
-<html>
-<head>
-<title>Boost: Base-from-Member Idiom Documentation</title>
-</head>
-
-<body bgcolor="white" link="blue" text="black" vlink="purple" alink="red"> 
-<h1><img src="../../boost.png" alt="C++ Boost" align="middle"
-width="277" height="86">Base-from-Member Idiom</h1>
-
-<p>The class template <code>boost::base_from_member</code> provides
-a workaround for a class that needs to initialize a base class with a
-member.  The class template is in <cite><a
-href="../../boost/utility/base_from_member.hpp">boost/utility/base_from_member.hpp</a></cite>
-which is included in <i><a href="../../boost/utility.hpp">boost/utility.hpp</a></i>.</p>
-
-<p>There is test/example code in <cite><a
-href="base_from_member_test.cpp">base_from_member_test.cpp</a></cite>.</p>
-
-<h2><a name="contents">Contents</a></h2>
-
-<ul>
-	<li><a href="#contents">Contents</a></li>
-	<li><a href="#rationale">Rationale</a></li>
-	<li><a href="#synopsis">Synopsis</a></li>
-	<li><a href="#usage">Usage</a></li>
-	<li><a href="#example">Example</a></li>
-	<li><a href="#credits">Credits</a>
-		<ul>
-			<li><a href="#contributors">Contributors</a></li>
-		</ul></li>
-</ul>
-
-<h2><a name="rationale">Rationale</a></h2>
-
-<p>When developing a class, sometimes a base class needs to be
-initialized with a member of the current class.  As a na&iuml;ve
-example:</p>
-
-<blockquote><pre>
-#include &lt;streambuf&gt;  <i>// for std::streambuf</i>
-#include &lt;ostream&gt;    <i>// for std::ostream</i>
-
-class fdoutbuf
-    : public std::streambuf
-{
-public:
-    explicit fdoutbuf( int fd );
-    //...
-};
-
-class fdostream
-    : public std::ostream
-{
-protected:
-    fdoutbuf buf;
-public:
-    explicit fdostream( int fd )
-        : buf( fd ), std::ostream( &amp;buf )
-        {}
-    //...
-};
-</pre></blockquote>
-
-<p>This is undefined because C++'s initialization order mandates that
-the base class is initialized before the member it uses.  <a
-href="http://www.moocat.org">R. Samuel Klatchko</a> developed a way
-around this by using the initialization order in his favor.  Base
-classes are intialized in order of declaration, so moving the desired
-member to another base class, that is initialized before the desired
-base class, can ensure proper initialization.</p>
-
-<p>A custom base class can be made for this idiom:</p>
-
-<blockquote><pre>
-#include &lt;streambuf&gt;  <i>// for std::streambuf</i>
-#include &lt;ostream&gt;    <i>// for std::ostream</i>
-
-class fdoutbuf
-    : public std::streambuf
-{
-public:
-    explicit fdoutbuf( int fd );
-    //...
-};
-
-struct fdostream_pbase
-{
-    fdoutbuf sbuffer;
-
-    explicit fdostream_pbase( int fd )
-        : sbuffer( fd )
-        {}
-};
-
-class fdostream
-    : private fdostream_pbase
-    , public std::ostream
-{
-    typedef fdostream_pbase  pbase_type;
-    typedef std::ostream     base_type;
-
-public:
-    explicit fdostream( int fd )
-        : pbase_type( fd ), base_type( &amp;sbuffer )
-        {}
-    //...
-};
-</pre></blockquote>
-
-<p>Other projects can use similar custom base classes.  The technique
-is basic enough to make a template, with a sample template class in
-this library.  The main template parameter is the type of the enclosed
-member.  The template class has several (explicit) constructor member
-templates, which implicitly type the constructor arguments and pass them
-to the member.  The template class uses implicit copy construction and
-assignment, cancelling them if the enclosed member is non-copyable.</p>
-
-<p>Manually coding a base class may be better if the construction
-and/or copying needs are too complex for the supplied template class,
-or if the compiler is not advanced enough to use it.</p>
-
-<p>Since base classes are unnamed, a class cannot have multiple (direct)
-base classes of the same type.  The supplied template class has an
-extra template parameter, an integer, that exists solely to provide type
-differentiation.  This parameter has a default value so a single use of a
-particular member type does not need to concern itself with the integer.</p>
-
-<h2><a name="synopsis">Synopsis</a></h2>
-
-<blockquote><pre>
-#ifndef BOOST_BASE_FROM_MEMBER_MAX_ARITY
-#define BOOST_BASE_FROM_MEMBER_MAX_ARITY  10
-#endif
-
-template &lt; typename MemberType, int UniqueID = 0 &gt;
-class boost::base_from_member
-{
-protected:
-    MemberType  member;
-
-    base_from_member();
-
-    template&lt; typename T1 &gt;
-    explicit  base_from_member( T1 x1 );
-
-    template&lt; typename T1, typename T2 &gt;
-    base_from_member( T1 x1, T2 x2 );
-
-    //...
-
-    template&lt; typename T1, typename T2, typename T3, typename T4,
-     typename T5, typename T6, typename T7, typename T8, typename T9,
-     typename T10 &gt;
-    base_from_member( T1 x1, T2 x2, T3 x3, T4 x4, T5 x5, T6 x6, T7 x7,
-     T8 x8, T9 x9, T10 x10 );
-};
-</pre></blockquote>
-
-<p>The class template has a first template parameter
-<var>MemberType</var> representing the type of the based-member.
-It has a last template parameter <var>UniqueID</var>, that is an
-<code>int</code>, to differentiate between multiple base classes that use
-the same based-member type.  The last template parameter has a default
-value of zero if it is omitted.  The class template has a protected
-data member called <var>member</var> that the derived class can use
-for later base classes (or itself).</p>
-
-<p>There is a default constructor and several constructor member
-templates.  These constructor templates can take as many arguments
-(currently up to ten) as possible and pass them to a constructor of
-the data member.  Since C++ does not allow any way to explicitly state
-the template parameters of a templated constructor, make sure that
-the arguments are already close as possible to the actual type used in
-the data member's desired constructor.</p>
-
-<p>The <var>BOOST_BASE_FROM_MEMBER_MAX_ARITY</var> macro constant specifies
-the maximum argument length for the constructor templates.  The constant
-may be overridden if more (or less) argument configurations are needed.  The
-constant may be read for code that is expandable like the class template and
-needs to maintain the same maximum size.  (Example code would be a class that
-uses this class template as a base class for a member with a flexible set of
-constructors.)</p>
-
-<h2><a name="usage">Usage</a></h2>
-
-<p>With the starting example, the <code>fdoutbuf</code> sub-object needs
-to be encapsulated in a base class that is inheirited before
-<code>std::ostream</code>.</p>
-
-<blockquote><pre>
-#include &lt;boost/utility/base_from_member.hpp&gt;
-
-#include &lt;streambuf&gt;  <i>// for std::streambuf</i>
-#include &lt;ostream&gt;    <i>// for std::ostream</i>
-
-class fdoutbuf
-    : public std::streambuf
-{
-public:
-    explicit fdoutbuf( int fd );
-    //...
-};
-
-class fdostream
-    : private boost::base_from_member&lt;fdoutbuf&gt;
-    , public std::ostream
-{
-    // Helper typedef's
-    typedef boost::base_from_member&lt;fdoutbuf&gt;  pbase_type;
-    typedef std::ostream                        base_type;
-
-public:
-    explicit fdostream( int fd )
-        : pbase_type( fd ), base_type( &amp;member )
-        {}
-    //...
-};
-</pre></blockquote>
-
-<p>The base-from-member idiom is an implementation detail, so it
-should not be visible to the clients (or any derived classes) of
-<code>fdostream</code>.  Due to the initialization order, the
-<code>fdoutbuf</code> sub-object will get initialized before the
-<code>std::ostream</code> sub-object does, making the former
-sub-object safe to use in the latter sub-object's construction.  Since the
-<code>fdoutbuf</code> sub-object of the final type is the only sub-object
-with the name &quot;member,&quot; that name can be used
-unqualified within the final class.</p>
-
-<h2><a name="example">Example</a></h2>
-
-<p>The base-from-member class templates should commonly involve
-only one base-from-member sub-object, usually for attaching a
-stream-buffer to an I/O stream.  The next example demonstrates how
-to use multiple base-from-member sub-objects and the resulting
-qualification issues.</p>
-
-<blockquote><pre>
-#include &lt;boost/utility/base_from_member.hpp&gt;
-
-#include &lt;cstddef&gt;  <i>// for NULL</i>
-
-struct an_int
-{
-    int  y;
-
-    an_int( float yf );
-};
-
-class switcher
-{
-public:
-    switcher();
-    switcher( double, int * );
-    //...
-};
-
-class flow_regulator
-{
-public:
-    flow_regulator( switcher &amp;, switcher &amp; );
-    //...
-};
-
-template &lt; unsigned Size &gt;
-class fan
-{
-public:
-    explicit fan( switcher );
-    //...
-};
-
-class system
-    : private boost::base_from_member&lt;an_int&gt;
-    , private boost::base_from_member&lt;switcher&gt;
-    , private boost::base_from_member&lt;switcher, 1&gt;
-    , private boost::base_from_member&lt;switcher, 2&gt;
-    , protected flow_regulator
-    , public fan&lt;6&gt;
-{
-    // Helper typedef's
-    typedef boost::base_from_member&lt;an_int&gt;       pbase0_type;
-    typedef boost::base_from_member&lt;switcher&gt;     pbase1_type;
-    typedef boost::base_from_member&lt;switcher, 1&gt;  pbase2_type;
-    typedef boost::base_from_member&lt;switcher, 2&gt;  pbase3_type;
-
-    typedef flow_regulator  base1_type;
-    typedef fan&lt;6&gt;          base2_type;
-
-public:
-    system( double x );
-    //...
-};
-
-system::system( double x )
-    : pbase0_type( 0.2 )
-    , pbase1_type()
-    , pbase2_type( -16, &amp;this-&gt;pbase0_type::member )
-    , pbase3_type( x, static_cast&lt;int *&gt;(NULL) )
-    , base1_type( pbase3_type::member, pbase1_type::member )
-    , base2_type( pbase2_type::member )
-{
-    //...
-}
-</pre></blockquote>
-
-<p>The final class has multiple sub-objects with the name
-&quot;member,&quot; so any use of that name needs qualification by
-a name of the appropriate base type.  (Using <code>typedef</code>s
-ease mentioning the base types.)  However, the fix introduces a new
-problem when a pointer is needed.  Using the address operator with
-a sub-object qualified with its class's name results in a pointer-to-member
-(here, having a type of <code>an_int boost::base_from_member&lt;an_int,
-0&gt; :: *</code>) instead of a pointer to the member (having a type of
-<code>an_int *</code>).  The new problem is fixed by qualifying the
-sub-object with &quot;<code>this-&gt;</code>,&quot; and is needed just
-for pointers, and not for references or values.</p>
-
-<p>There are some argument conversions in the initialization.  The
-constructor argument for <code>pbase0_type</code> is converted from
-<code>double</code> to <code>float</code>.  The first constructor
-argument for <code>pbase2_type</code> is converted from <code>int</code>
-to <code>double</code>.  The second constructor argument for
-<code>pbase3_type</code> is a special case of necessary conversion; all
-forms of the null-pointer literal in C++ also look like compile-time
-integral expressions, so C++ always interprets such code as an integer
-when it has overloads that can take either an integer or a pointer.  The
-last conversion is necessary for the compiler to call a constructor form
-with the exact pointer type used in <code>switcher</code>'s constructor.</p>
-
-<h2><a name="credits">Credits</a></h2>
-
-<h3><a name="contributors">Contributors</a></h3>
-
-<dl>
-	<dt><a href="http://www.boost.org/people/ed_brey.htm">Ed Brey</a>
-	<dd>Suggested some interface changes.
-
-	<dt><a href="http://www.moocat.org">R. Samuel Klatchko</a> (<a
-	href="mailto:rsk@moocat.org">rsk@moocat.org</a>, <a
-	href="mailto:rsk@brightmail.com">rsk@brightmail.com</a>)
-	<dd>Invented the idiom of how to use a class member for initializing
-		a base class.
-
-	<dt><a href="http://www.boost.org/people/dietmar_kuehl.htm">Dietmar Kuehl</a>
-	<dd>Popularized the base-from-member idiom in his
-		<a href="http://www.informatik.uni-konstanz.de/~kuehl/c++/iostream/">IOStream
-		example classes</a>.
-
-	<dt>Jonathan Turkanis
-	<dd>Supplied an implementation of generating the constructor templates that
-		can be controlled and automated with macros.  The implementation uses
-		the <a href="../preprocessor/index.html">Preprocessor library</a>.
-
-	<dt><a href="http://www.boost.org/people/daryle_walker.html">Daryle Walker</a>
-	<dd>Started the library.  Contributed the test file <cite><a
-		href="base_from_member_test.cpp">base_from_member_test.cpp</a></cite>.
-</dl>
-
-<hr>
-
-<p>Revised: 28 August 2004</p>
-
-<p>Copyright 2001, 2003, 2004 Daryle Walker.  Use, modification, and distribution
-are subject to the Boost Software License, Version 1.0.  (See accompanying
-file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or a copy at &lt;<a
-href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>&gt;.)</p>
-
-</body>
-</html>

base_from_member_ref_test.cpp

@@ -0,0 +1,29 @@
+//
+// Test that a base_from_member<T&> can be properly constructed
+//
+// Copyright 2014 Agustin Berge
+//
+// Distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+
+#include <boost/utility/base_from_member.hpp>
+
+#include <boost/detail/lightweight_test.hpp>
+
+struct foo : boost::base_from_member<int&>
+{
+    explicit foo(int& ref) : boost::base_from_member<int&>(ref)
+    {
+        BOOST_TEST(&member == &ref);
+    }
+};
+
+int main()
+{
+    int i = 0;
+    foo f(i);
+
+    return boost::report_errors();
+}

binary_search_test.cpp

@@ -1,258 +0,0 @@
-// (C) Copyright David Abrahams 2000.
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-#include <vector>
-#include <string>
-#include <memory>
-#include <climits>
-#include <iostream>
-#include <cassert>
-#include <stdlib.h> // for rand(). Would use cstdlib but VC6.4 doesn't put it in std::
-#include <list>
-#include <algorithm>
-#include <boost/detail/binary_search.hpp>
-#include <boost/detail/workaround.hpp>
-#include <cstddef>
-
-#if defined(__SGI_STL_PORT) ? defined(__SGI_STL_OWN_IOSTREAMS) : (!defined(__GNUC__) || __GNUC__ > 2)
-# define USE_SSTREAM
-#endif
-
-#ifdef USE_SSTREAM
-# include <sstream>
-#else
-# include <strstream>
-#endif
-
-namespace {
-
-// In order to get ADL to find the comparison operators defined below, they have
-struct mystring : std::string
-{
-    typedef std::string base;
-    
-    mystring(std::string const& x)
-        : base(x) {}
-};
-
-typedef std::vector<mystring> string_vector;
-
-const std::size_t sequence_length = 1000;
-
-unsigned random_number()
-{
-    return static_cast<unsigned>(::rand()) % sequence_length;
-}
-
-# ifndef USE_SSTREAM
-class unfreezer {
- public:
-    unfreezer(std::ostrstream& s) : m_stream(s) {}
-    ~unfreezer() { m_stream.freeze(false); }
- private:
-    std::ostrstream& m_stream;
-};
-# endif
-
-template <class T>
-void push_back_random_number_string(T& seq)
-{
-    unsigned value = random_number();
-# if defined(__SGI_STL_PORT) ? defined(__SGI_STL_OWN_IOSTREAMS) : (!defined(__GNUC__) || __GNUC__ > 2)
-    std::ostringstream s;
-    s << value;
-    seq.push_back(s.str());
-# else
-    std::ostrstream s;
-    auto unfreezer unfreeze(s);
-    s << value << char(0);
-    seq.push_back(std::string(s.str()));
-# endif
-}
-
-inline unsigned to_int(unsigned x) { return x; }
-inline unsigned to_int(const std::string& x) { return atoi(x.c_str()); }
-
-struct cmp
-{
-    template <class A1, class A2>
-    inline bool operator()(const A1& a1, const A2& a2) const
-    {
-        return to_int(a1) < to_int(a2);
-    }
-};
-
-inline bool operator<(const mystring& x, const unsigned y)
-{
-    return to_int(x) < y;
-}
-
-inline bool operator<(const unsigned y, const mystring& x)
-{
-    return y < to_int(x);
-}
-
-template <class T>
-void sort_by_value(T& x);
-
-template <class T>
-void sort_by_value_(T& v, long)
-{
-    std::sort(v.begin(), v.end(), cmp());
-}
-
-template <class T>
-void random_sorted_sequence(T& seq)
-{
-    seq.clear();
-    for (std::size_t i = 0; i < sequence_length; ++i)
-    {
-        push_back_random_number_string(seq);
-    }
-    sort_by_value(seq);
-}
-
-template <class T, class A>
-void sort_by_value_(std::list<T,A>& l, int)
-{
-# if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1) && !defined(__SGI_STL_PORT)
-// VC6's standard lib doesn't have a template member function for list::sort()
-    std::vector<T> seq;
-    seq.reserve(sequence_length);
-    std::copy(l.begin(), l.end(), std::back_inserter(seq));
-    sort_by_value(seq);
-    std::copy(seq.begin(), seq.end(), l.begin());
-# else
-    l.sort(cmp());
-# endif
-}
-
-template <class T>
-void sort_by_value(T& x)
-{
-    (sort_by_value_)(x, 1);
-}
-
-// A way to select the comparisons with/without a Compare parameter for testing.
-template <class Compare> struct searches
-{
-    template <class Iterator, class Key>
-    static Iterator lower_bound(Iterator start, Iterator finish, Key key, Compare cmp)
-        { return boost::detail::lower_bound(start, finish, key, cmp); }
-
-    template <class Iterator, class Key>
-    static Iterator upper_bound(Iterator start, Iterator finish, Key key, Compare cmp)
-        { return boost::detail::upper_bound(start, finish, key, cmp); }
-
-    template <class Iterator, class Key>
-    static std::pair<Iterator, Iterator> equal_range(Iterator start, Iterator finish, Key key, Compare cmp)
-        { return boost::detail::equal_range(start, finish, key, cmp); }
-
-    template <class Iterator, class Key>
-    static bool binary_search(Iterator start, Iterator finish, Key key, Compare cmp)
-        { return boost::detail::binary_search(start, finish, key, cmp); }
-};
-
-struct no_compare {};
-
-template <> struct searches<no_compare>
-{
-    template <class Iterator, class Key>
-    static Iterator lower_bound(Iterator start, Iterator finish, Key key, no_compare)
-        { return boost::detail::lower_bound(start, finish, key); }
-
-    template <class Iterator, class Key>
-    static Iterator upper_bound(Iterator start, Iterator finish, Key key, no_compare)
-        { return boost::detail::upper_bound(start, finish, key); }
-
-    template <class Iterator, class Key>
-    static std::pair<Iterator, Iterator> equal_range(Iterator start, Iterator finish, Key key, no_compare)
-        { return boost::detail::equal_range(start, finish, key); }
-
-    template <class Iterator, class Key>
-    static bool binary_search(Iterator start, Iterator finish, Key key, no_compare)
-        { return boost::detail::binary_search(start, finish, key); }
-};
-
-template <class Sequence, class Compare>
-void test_loop(Sequence& x, Compare cmp, unsigned long test_count)
-{
-    typedef typename Sequence::const_iterator const_iterator;
-    
-    for (unsigned long i = 0; i < test_count; ++i)
-    {
-        random_sorted_sequence(x);
-        const const_iterator start = x.begin();
-        const const_iterator finish = x.end();
-        
-        unsigned key = random_number();
-        const const_iterator l = searches<Compare>::lower_bound(start, finish, key, cmp);
-        const const_iterator u = searches<Compare>::upper_bound(start, finish, key, cmp);
-
-        bool found_l = false;
-        bool found_u = false;
-        std::size_t index = 0;
-        std::size_t count = 0;
-        unsigned last_value = 0;
-        for (const_iterator p = start; p != finish; ++p)
-        {
-            if (p == l)
-                found_l = true;
-            
-            if (p == u)
-            {
-                assert(found_l);
-                found_u = true;
-            }
-
-            unsigned value = to_int(*p);
-            assert(value >= last_value);
-            last_value = value;
-            
-            if (!found_l)
-            {
-                ++index;
-                assert(to_int(*p) < key);
-            }
-            else if (!found_u)
-            {
-                ++count;
-                assert(to_int(*p) == key);
-            }
-            else
-                assert(to_int(*p) > key);
-        }
-        assert(found_l || l == finish);
-        assert(found_u || u == finish);
-
-        std::pair<const_iterator, const_iterator>
-            range = searches<Compare>::equal_range(start, finish, key, cmp);
-        assert(range.first == l);
-        assert(range.second == u);
-
-        bool found = searches<Compare>::binary_search(start, finish, key, cmp);
-        assert(found == (u != l));
-        std::cout << "found " << count << " copies of " << key << " at index " << index << "\n";
-    }
-}
-
-}
-
-int main()
-{
-    string_vector x;
-    std::cout << "=== testing random-access iterators with <: ===\n";
-    test_loop(x, no_compare(), 25);
-    std::cout << "=== testing random-access iterators with compare: ===\n";
-    test_loop(x, cmp(), 25);
-    
-    std::list<mystring> y;
-    std::cout << "=== testing bidirectional iterators with <: ===\n";
-    test_loop(y, no_compare(), 25);
-    std::cout << "=== testing bidirectional iterators with compare: ===\n";
-    test_loop(y, cmp(), 25);
-    std::cerr << "******TEST PASSED******\n";
-    return 0;
-}

call_traits_test.cpp

@@ -210,8 +210,10 @@ int main()
    comparible_UDT u;
    c1(u);
    call_traits_checker<int> c2;
+   call_traits_checker<enum_UDT> c2b;
    int i = 2;
    c2(i);
+   c2b(one);
    int* pi = &i;
    int a[2] = {1,2};
 #if defined(BOOST_MSVC6_MEMBER_TEMPLATES) && !defined(__ICL)
@@ -292,7 +294,11 @@ int main()
    BOOST_CHECK_TYPE(incomplete_type&, boost::call_traits<incomplete_type>::reference);
    BOOST_CHECK_TYPE(const incomplete_type&, boost::call_traits<incomplete_type>::const_reference);
    BOOST_CHECK_TYPE(const incomplete_type&, boost::call_traits<incomplete_type>::param_type);
-
+   // test enum:
+   BOOST_CHECK_TYPE(enum_UDT, boost::call_traits<enum_UDT>::value_type);
+   BOOST_CHECK_TYPE(enum_UDT&, boost::call_traits<enum_UDT>::reference);
+   BOOST_CHECK_TYPE(const enum_UDT&, boost::call_traits<enum_UDT>::const_reference);
+   BOOST_CHECK_TYPE(const enum_UDT, boost::call_traits<enum_UDT>::param_type);
    return 0;
 }
 

checked_delete.html

@@ -1,122 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
-	<head>
-		<title>Boost: checked_delete.hpp documentation</title>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-	</head>
-	<body bgcolor="white" style="MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%">
-		<table border="0" width="100%">
-			<tr>
-				<td width="277"><A href="../../index.htm"> <img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86" border="0"></A>
-				</td>
-				<td align="center">
-					<h1>checked_delete.hpp</h1>
-				</td>
-			</tr>
-			<tr>
-				<td colspan="2" height="64">&nbsp;</td>
-			</tr>
-		</table>
-		<p>
-			The header <STRONG>&lt;boost/checked_delete.hpp&gt;</STRONG> defines two 
-			function templates, <STRONG>checked_delete</STRONG> and <STRONG>checked_array_delete</STRONG>, 
-			and two class templates, <STRONG>checked_deleter</STRONG> and <STRONG>checked_array_deleter</STRONG>.
-		</p>
-		<P>The C++ Standard allows, in 5.3.5/5, pointers to incomplete class types to be 
-			deleted with a <EM>delete-expression</EM>. When the class has a non-trivial 
-			destructor, or a class-specific operator delete, the behavior is undefined. 
-			Some compilers issue a warning when an incomplete type is deleted, but 
-			unfortunately, not all do, and programmers sometimes ignore or disable 
-			warnings.</P>
-		<P>A particularly troublesome case is when a smart pointer's destructor, such as <STRONG>
-				boost::scoped_ptr&lt;T&gt;::~scoped_ptr</STRONG>, is instantiated with an 
-			incomplete type. This can often lead to silent, hard to track failures.</P>
-		<P>The supplied function and class templates can be used to prevent these problems, 
-			as they require a complete type, and cause a compilation error otherwise.</P>
-		<h3><a name="Synopsis">Synopsis</a></h3>
-		<pre>
-namespace boost
-{
-
-template&lt;class T&gt; void checked_delete(T * p);
-template&lt;class T&gt; void checked_array_delete(T * p);
-template&lt;class T&gt; struct checked_deleter;
-template&lt;class T&gt; struct checked_array_deleter;
-
-}
-</pre>
-		<h3>checked_delete</h3>
-		<h4><a name="checked_delete">template&lt;class T&gt; void checked_delete(T * p);</a></h4>
-		<blockquote>
-			<p>
-				<b>Requires:</b> <b>T</b> must be a complete type. The expression <tt>delete p</tt>
-				must be well-formed.
-			</p>
-			<p>
-				<b>Effects:</b> <tt>delete p;</tt>
-			</p>
-		</blockquote>
-		<h3>checked_array_delete</h3>
-		<h4><a name="checked_array_delete">template&lt;class T&gt; void checked_array_delete(T 
-				* p);</a></h4>
-		<blockquote>
-			<p>
-				<b>Requires:</b> <b>T</b> must be a complete type. The expression <tt>delete [] p</tt>
-				must be well-formed.
-			</p>
-			<p>
-				<b>Effects:</b> <tt>delete [] p;</tt>
-			</p>
-		</blockquote>
-		<h3>checked_deleter</h3>
-		<pre>
-template&lt;class T&gt; struct checked_deleter
-{
-    typedef void result_type;
-    typedef T * argument_type;
-    void operator()(T * p) const;
-};
-</pre>
-		<h4>void checked_deleter&lt;T&gt;::operator()(T * p) const;</h4>
-		<blockquote>
-			<p>
-				<b>Requires:</b> <b>T</b> must be a complete type. The expression <tt>delete p</tt>
-				must be well-formed.
-			</p>
-			<p>
-				<b>Effects:</b> <tt>delete p;</tt>
-			</p>
-		</blockquote>
-		<h3>checked_array_deleter</h3>
-		<pre>
-template&lt;class T&gt; struct checked_array_deleter
-{
-    typedef void result_type;
-    typedef T * argument_type;
-    void operator()(T * p) const;
-};
-</pre>
-		<h4>void checked_array_deleter&lt;T&gt;::operator()(T * p) const;</h4>
-		<blockquote>
-			<p>
-				<b>Requires:</b> <b>T</b> must be a complete type. The expression <tt>delete [] p</tt>
-				must be well-formed.
-			</p>
-			<p>
-				<b>Effects:</b> <tt>delete [] p;</tt>
-			</p>
-		</blockquote>
-		<h3><a name="Acknowledgements">Acknowledgements</a></h3>
-		<p>
-			The function templates <STRONG>checked_delete</STRONG> and <STRONG>checked_array_delete</STRONG>
-			were originally part of <STRONG>&lt;boost/utility.hpp&gt;</STRONG>, and the 
-			documentation acknowledged Beman Dawes, Dave Abrahams, Vladimir Prus, Rainer 
-			Deyke, John Maddock, and others as contributors.
-		</p>
-		<p>
-			<br>
-			<small>Copyright <20> 2002 by Peter Dimov. Distributed under the Boost Software License, Version 
-				1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or 
-				copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
-	</body>
+<head>
+<meta http-equiv=refresh content="0; URL=../core/doc/html/core/checked_delete.html">
+<title>Automatic redirection</title>
+</head>
+<body>
+Automatic redirection failed, please go to
+<a href="../core/doc/html/core/checked_delete.html">checked_delete.html</a>.&nbsp;<hr>
+<p><EFBFBD> Copyright Beman Dawes, 2001</p>
+<p>Distributed under the Boost Software License, Version 1.0. (See accompanying 
+file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or copy 
+at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</p>
+</body>
 </html>

checked_delete_test.cpp

@@ -1,28 +0,0 @@
-//  Boost checked_delete test program  ---------------------------------------//
-
-//  Copyright Beman Dawes 2001.  Distributed under the Boost
-//  Software License, Version 1.0. (See accompanying file
-//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-//  See http://www.boost.org/libs/utility for documentation.
-
-//  Revision History
-//  21 May 01  Initial version (Beman Dawes)
-
-#include <boost/checked_delete.hpp>  // for checked_delete
-
-//  This program demonstrates compiler errors when trying to delete an
-//  incomplete type.
-
-namespace
-{
-    class Incomplete;
-}
-
-int main()
-{
-    Incomplete * p = 0;
-    boost::checked_delete(p);          // should cause compile time error
-    boost::checked_array_delete(p);    // should cause compile time error
-    return 0;
-}   // main

compressed_pair.htm

@@ -1,76 +1,16 @@
+
+<!--
+Copyright 2014 Daniel James.
+Distributed under the Boost Software License, Version 1.0. (See accompanying
+file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+-->
+
 <html>
-   <head>
-      <title>Header </title>
-      <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-      <meta name="Template" content="C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\html.dot">
-      <meta name="GENERATOR" content="Microsoft FrontPage 5.0">
-      <boostcompressed_pair.hpp>
-   </head>
-   <body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#800080">
-      <h2><img src="../../boost.png" width="276" height="86">Header &lt;<a href="../../boost/detail/compressed_pair.hpp">boost/compressed_pair.hpp</a>&gt;</h2>
-      <p>All of the contents of &lt;boost/compressed_pair.hpp&gt; are defined inside 
-         namespace boost.</p>
-      <p>The class compressed pair is very similar to std::pair, but if either of the 
-         template arguments are empty classes, then the "empty base-class optimisation" 
-         is applied to compress the size of the pair.</p>
-      <pre>template &lt;class T1, class T2&gt;
-class compressed_pair
-{
-public:
-	typedef T1                                                 first_type;
-	typedef T2                                                 second_type;
-	typedef typename call_traits&lt;first_type&gt;::param_type       first_param_type;
-	typedef typename call_traits&lt;second_type&gt;::param_type      second_param_type;
-	typedef typename call_traits&lt;first_type&gt;::reference        first_reference;
-	typedef typename call_traits&lt;second_type&gt;::reference       second_reference;
-	typedef typename call_traits&lt;first_type&gt;::const_reference  first_const_reference;
-	typedef typename call_traits&lt;second_type&gt;::const_reference second_const_reference;
-
-	         compressed_pair() : base() {}
-	         compressed_pair(first_param_type x, second_param_type y);
-	explicit compressed_pair(first_param_type x);
-	explicit compressed_pair(second_param_type y);
-
-	compressed_pair&amp; operator=(const compressed_pair&amp;);
-
-	first_reference       first();
-	first_const_reference first() const;
-
-	second_reference       second();
-	second_const_reference second() const;
-
-	void swap(compressed_pair&amp; y);
-};</pre>
-      <p>The two members of the pair can be accessed using the member functions first() 
-         and second(). Note that not all member functions can be instantiated for all 
-         template parameter types. In particular compressed_pair can be instantiated for 
-         reference and array types, however in these cases the range of constructors 
-         that can be used are limited. If types T1 and T2 are the same type, then there 
-         is only one version of the single-argument constructor, and this constructor 
-         initialises both values in the pair to the passed value.</p>
-      <P>Note that if either member is a POD type, then that member is not 
-         zero-initialized by the compressed_pair default constructor: it's up to you to 
-         supply an initial value for these types if you want them to have a default 
-         value.</P>
-      <p>Note that compressed_pair can not be instantiated if either of the template 
-         arguments is a union type, unless there is compiler support for 
-         boost::is_union, or if boost::is_union is specialised for the union type.</p>
-      <p>Finally, a word of caution for Visual C++ 6 users: if either argument is an 
-         empty type, then assigning to that member will produce memory corruption, 
-         unless the empty type has a "do nothing" assignment operator defined. This is 
-         due to a bug in the way VC6 generates implicit assignment operators.</p>
-      <h3>Acknowledgements</h3>
-      <p>Based on contributions by Steve Cleary, Beman Dawes, Howard Hinnant and John 
-         Maddock.</p>
-      <p>Maintained by <a href="mailto:john@johnmaddock.co.uk">John Maddock</a>, the 
-         latest version of this file can be found at <a href="http://www.boost.org">www.boost.org</a>, 
-         and the boost discussion list at <a href="http://www.yahoogroups.com/list/boost">www.yahoogroups.com/list/boost</a>.</p>
-      <hr>
-      <p>Revised
-      <!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan -->07 November 2007<!--webbot bot="Timestamp" endspan i-checksum="40338" --></p>
-      <p><EFBFBD> Copyright Beman Dawes, 2000.</p>
-<p>Distributed under the Boost Software License, Version 1.0. See
-<a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a></p>
-
-   </body>
-</html>
+<head>
+    <meta http-equiv="refresh" content="0; URL=doc/html/compressed_pair.html">
+</head>
+<body>
+Automatic redirection failed, please go to
+<a href="doc/html/compressed_pair.html">doc/html/compressed_pair.html</a>
+</body>
+</html>

current_function.html

@@ -1,36 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
-<html>
-	<head>
-		<title>Boost: current_function.hpp documentation</title>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-	</head>
-	<body bgcolor="white" style="MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%">
-		<table border="0" width="100%">
-			<tr>
-				<td width="277"><A href="../../index.htm"> <img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86" border="0"></A>
-				</td>
-				<td align="center">
-					<h1>current_function.hpp</h1>
-				</td>
-			</tr>
-			<tr>
-				<td colspan="2" height="64">&nbsp;</td>
-			</tr>
-		</table>
-		<p>
-			The header <STRONG>&lt;boost/current_function.hpp&gt;</STRONG> defines a single 
-			macro, <STRONG>BOOST_CURRENT_FUNCTION</STRONG>,<STRONG> </STRONG>similar to the 
-			C99 predefined identifier <STRONG>__func__</STRONG>.
-		</p>
-		<P><STRONG>BOOST_CURRENT_FUNCTION</STRONG> expands to a string literal containing 
-			the (fully qualified, if possible) name of the enclosing function. If there is 
-			no enclosing function, the behavior is undefined.</P>
-		<p>Some compilers do not provide a way to obtain the name of the current enclosing 
-			function. On such compilers, the string literal has an unspecified value.</p>
-		<p>
-			<br>
-			<small>Copyright <20> 2002 by Peter Dimov. Distributed under the Boost Software License, Version 
-				1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or 
-				copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
-	</body>
-</html>

current_function_test.cpp

@@ -1,40 +0,0 @@
-#include <boost/config.hpp>
-
-#if defined(BOOST_MSVC)
-#pragma warning(disable: 4786)  // identifier truncated in debug info
-#pragma warning(disable: 4710)  // function not inlined
-#pragma warning(disable: 4711)  // function selected for automatic inline expansion
-#pragma warning(disable: 4514)  // unreferenced inline removed
-#endif
-
-//
-//  current_function_test.cpp - a test for boost/current_function.hpp
-//
-//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#include <boost/current_function.hpp>
-#include <boost/config.hpp>
-#include <cstdio>
-
-void message(char const * file, long line, char const * func, char const * msg)
-{
-#if !defined(BOOST_NO_STDC_NAMESPACE)
-    using std::printf;
-#endif
-
-    printf("%s(%ld): %s in function '%s'\n", file, line, msg, func);
-}
-
-#define MESSAGE(msg) message(__FILE__, __LINE__, BOOST_CURRENT_FUNCTION, msg)
-
-int main()
-{
-    MESSAGE("assertion failed");
-
-    return 0;
-}

doc/Jamfile.v2

@@ -6,7 +6,7 @@
 project : requirements
         # Path for links to Boost:
         <xsl:param>boost.root=../../../..
-        
+
         # Some general style settings:
         <xsl:param>table.footnote.number.format=1
         <xsl:param>footnote.number.format=1
@@ -42,8 +42,46 @@ using quickbook ;
 
 path-constant boost-images : ../../../doc/src/images ;
 
+xml base_from_member : base_from_member.qbk ;
+boostbook standalone_base_from_member
+    :
+        base_from_member
+    :
+        # File name of HTML output:
+        <xsl:param>root.filename=base_from_member
+        # How far down we chunk nested sections, basically all of them:
+        <xsl:param>chunk.section.depth=0
+        # Don't put the first section on the same page as the TOC:
+        <xsl:param>chunk.first.sections=0
+        # How far down sections get TOC's
+        <xsl:param>toc.section.depth=1
+        # Max depth in each TOC:
+        <xsl:param>toc.max.depth=1
+        # How far down we go with TOC's
+        <xsl:param>generate.section.toc.level=1
+     ;
+
+xml compressed_pair : compressed_pair.qbk ;
+boostbook standalone_compressed_pair
+    :
+        compressed_pair
+    :
+        # File name of HTML output:
+        <xsl:param>root.filename=compressed_pair
+        # How far down we chunk nested sections, basically all of them:
+        <xsl:param>chunk.section.depth=0
+        # Don't put the first section on the same page as the TOC:
+        <xsl:param>chunk.first.sections=0
+        # How far down sections get TOC's
+        <xsl:param>toc.section.depth=1
+        # Max depth in each TOC:
+        <xsl:param>toc.max.depth=1
+        # How far down we go with TOC's
+        <xsl:param>generate.section.toc.level=1
+     ;
+
 xml declval : declval.qbk ;
-boostbook standalone
+boostbook standalone_declval
     :
         declval
     :
@@ -59,10 +97,42 @@ boostbook standalone
         <xsl:param>toc.max.depth=1
         # How far down we go with TOC's
         <xsl:param>generate.section.toc.level=1
-        
      ;
 
+xml string_ref : string_ref.qbk ;
+boostbook standalone_string_ref
+    :
+        string_ref
+    :
+        # File name of HTML output:
+        <xsl:param>root.filename=string_ref
+        # How far down we chunk nested sections, basically all of them:
+        <xsl:param>chunk.section.depth=0
+        # Don't put the first section on the same page as the TOC:
+        <xsl:param>chunk.first.sections=0
+        # How far down sections get TOC's
+        <xsl:param>toc.section.depth=1
+        # Max depth in each TOC:
+        <xsl:param>toc.max.depth=1
+        # How far down we go with TOC's
+        <xsl:param>generate.section.toc.level=1
+     ;
 
-
-
-
+xml string_view : string_view.qbk ;
+boostbook standalone_string_view
+    :
+        string_view
+    :
+        # File name of HTML output:
+        <xsl:param>root.filename=string_view
+        # How far down we chunk nested sections, basically all of them:
+        <xsl:param>chunk.section.depth=0
+        # Don't put the first section on the same page as the TOC:
+        <xsl:param>chunk.first.sections=0
+        # How far down sections get TOC's
+        <xsl:param>toc.section.depth=1
+        # Max depth in each TOC:
+        <xsl:param>toc.max.depth=1
+        # How far down we go with TOC's
+        <xsl:param>generate.section.toc.level=1
+     ;

doc/base_from_member.qbk

@@ -0,0 +1,363 @@
+[/
+  Copyright 2001, 2003, 2004, 2012 Daryle Walker.
+
+  Distributed under the Boost Software License, Version 1.0.
+
+  See accompanying file LICENSE_1_0.txt
+  or copy at http://boost.org/LICENSE_1_0.txt
+]
+
+[article Base_From_Member
+    [quickbook 1.5]
+    [authors [Walker, Daryle]]
+    [copyright 2001, 2003, 2004, 2012 Daryle Walker]
+    [license
+        Distributed under the Boost Software License, Version 1.0.
+        (See accompanying file LICENSE_1_0.txt or copy at
+        [@http://www.boost.org/LICENSE_1_0.txt])
+    ]
+]
+
+[section Rationale]
+
+When developing a class, sometimes a base class needs to be initialized
+with a member of the current class. As a na\u00EFve example:
+
+    #include <streambuf>  /* for std::streambuf */
+    #include <ostream>    /* for std::ostream */
+
+    class fdoutbuf
+      : public std::streambuf
+    {
+    public:
+        explicit fdoutbuf( int fd );
+        //...
+    };
+
+    class fdostream
+      : public std::ostream
+    {
+    protected:
+        fdoutbuf buf;
+    public:
+        explicit fdostream( int fd )
+          : buf( fd ), std::ostream( &buf ) {}
+        //...
+    };
+
+This is undefined because C++'s initialization order mandates that the base
+class is initialized before the member it uses. [@http://www.moocat.org R.
+Samuel Klatchko] developed a way around this by using the initialization
+order in his favor. Base classes are intialized in order of declaration, so
+moving the desired member to another base class, that is initialized before
+the desired base class, can ensure proper initialization.
+
+A custom base class can be made for this idiom:
+
+    #include <streambuf>  /* for std::streambuf */
+    #include <ostream>    /* for std::ostream */
+
+    class fdoutbuf
+      : public std::streambuf
+    {
+    public:
+        explicit fdoutbuf( int fd );
+        //...
+    };
+
+    struct fdostream_pbase
+    {
+        fdoutbuf sbuffer;
+
+        explicit fdostream_pbase( int fd )
+          : sbuffer( fd ) {}
+    };
+
+    class fdostream
+      : private fdostream_pbase
+      , public std::ostream
+    {
+        typedef fdostream_pbase  pbase_type;
+        typedef std::ostream     base_type;
+
+    public:
+        explicit fdostream( int fd )
+          : pbase_type( fd ), base_type( &sbuffer ) {}
+        //...
+    };
+
+Other projects can use similar custom base classes. The technique is basic
+enough to make a template, with a sample template class in this library.
+The main template parameter is the type of the enclosed member. The
+template class has several (explicit) constructor member templates, which
+implicitly type the constructor arguments and pass them to the member. The
+template class uses implicit copy construction and assignment, cancelling
+them if the enclosed member is non-copyable.
+
+Manually coding a base class may be better if the construction and/or
+copying needs are too complex for the supplied template class, or if the
+compiler is not advanced enough to use it.
+
+Since base classes are unnamed, a class cannot have multiple (direct) base
+classes of the same type. The supplied template class has an extra template
+parameter, an integer, that exists solely to provide type differentiation.
+This parameter has a default value so a single use of a particular member
+type does not need to concern itself with the integer.
+
+[endsect]
+
+[section Synopsis]
+
+    #include <type_traits>  /* exposition only */
+
+    #ifndef BOOST_BASE_FROM_MEMBER_MAX_ARITY
+    #define BOOST_BASE_FROM_MEMBER_MAX_ARITY  10
+    #endif
+
+    template < typename MemberType, int UniqueID = 0 >
+    class boost::base_from_member
+    {
+    protected:
+        MemberType  member;
+
+    #if ``['C++11 is in use]``
+        template< typename ...T >
+        explicit constexpr   base_from_member( T&& ...x )
+         noexcept( std::is_nothrow_constructible<MemberType, T...>::value );
+    #else
+        base_from_member();
+
+        template< typename T1 >
+        explicit  base_from_member( T1 x1 );
+
+        template< typename T1, typename T2 >
+        base_from_member( T1 x1, T2 x2 );
+
+        //...
+
+        template< typename T1, typename T2, typename T3, typename T4,
+         typename T5, typename T6, typename T7, typename T8, typename T9,
+         typename T10 >
+        base_from_member( T1 x1, T2 x2, T3 x3, T4 x4, T5 x5, T6 x6, T7 x7,
+         T8 x8, T9 x9, T10 x10 );
+    #endif
+    };
+
+    template < typename MemberType, int UniqueID >
+    class base_from_member<MemberType&, UniqueID>
+    {
+    protected:
+        MemberType& member;
+
+        explicit constexpr base_from_member( MemberType& x )
+            noexcept;
+    };
+
+The class template has a first template parameter `MemberType` representing
+the type of the based-member. It has a last template parameter `UniqueID`,
+that is an `int`, to differentiate between multiple base classes that use
+the same based-member type. The last template parameter has a default value
+of zero if it is omitted. The class template has a protected data member
+called `member` that the derived class can use for later base classes (or
+itself).
+
+If the appropriate features of C++11 are present, there will be a single
+constructor template. It implements ['perfect forwarding] to the best
+constructor call of `member` (if any). The constructor template is marked
+both `constexpr` and `explicit`. The former will be ignored if the
+corresponding inner constructor call (of `member`) does not have the marker.
+The latter binds the other way; always taking effect, even when the inner
+constructor call does not have the marker. The constructor template
+propagates the `noexcept` status of the inner constructor call. (The
+constructor template has a trailing parameter with a default value that
+disables the template when its signature is too close to the signatures of
+the automatically-defined non-template copy- and/or move-constructors of
+`base_from_member`.)
+
+On earlier-standard compilers, there is a default constructor and several
+constructor member templates. These constructor templates can take as many
+arguments (currently up to ten) as possible and pass them to a constructor
+of the data member.
+
+A specialization for member references offers a single constructor taking
+a `MemberType&`, which is the only way to initialize a reference.
+
+Since C++ does not allow any way to explicitly state the template parameters
+of a templated constructor, make sure that the arguments are already close
+as possible to the actual type used in the data member's desired constructor.
+Explicit conversions may be necessary.
+
+The `BOOST_BASE_FROM_MEMBER_MAX_ARITY` macro constant specifies the maximum
+argument length for the constructor templates. The constant may be overridden
+if more (or less) argument configurations are needed. The constant may be
+read for code that is expandable like the class template and needs to
+maintain the same maximum size. (Example code would be a class that uses
+this class template as a base class for a member with a flexible set of
+constructors.) This constant is ignored when C++11 features are present.
+
+[endsect]
+
+[section Usage]
+
+With the starting example, the `fdoutbuf` sub-object needs to be
+encapsulated in a base class that is inheirited before `std::ostream`.
+
+    #include <boost/utility/base_from_member.hpp>
+
+    #include <streambuf>  // for std::streambuf
+    #include <ostream>    // for std::ostream
+
+    class fdoutbuf
+      : public std::streambuf
+    {
+    public:
+        explicit fdoutbuf( int fd );
+        //...
+    };
+
+    class fdostream
+      : private boost::base_from_member<fdoutbuf>
+      , public std::ostream
+    {
+        // Helper typedef's
+        typedef boost::base_from_member<fdoutbuf>  pbase_type;
+        typedef std::ostream                        base_type;
+
+    public:
+        explicit fdostream( int fd )
+          : pbase_type( fd ), base_type( &member ){}
+        //...
+    };
+
+The base-from-member idiom is an implementation detail, so it should not
+be visible to the clients (or any derived classes) of `fdostream`. Due to
+the initialization order, the `fdoutbuf` sub-object will get initialized
+before the `std::ostream` sub-object does, making the former sub-object
+safe to use in the latter sub-object's construction. Since the `fdoutbuf`
+sub-object of the final type is the only sub-object with the name `member`
+that name can be used unqualified within the final class.
+
+[endsect]
+
+[section Example]
+
+The base-from-member class templates should commonly involve only one
+base-from-member sub-object, usually for attaching a stream-buffer to an
+I/O stream. The next example demonstrates how to use multiple
+base-from-member sub-objects and the resulting qualification issues.
+
+    #include <boost/utility/base_from_member.hpp>
+
+    #include <cstddef>  /* for NULL */
+
+    struct an_int
+    {
+        int  y;
+
+        an_int( float yf );
+    };
+
+    class switcher
+    {
+    public:
+        switcher();
+        switcher( double, int * );
+        //...
+    };
+
+    class flow_regulator
+    {
+    public:
+        flow_regulator( switcher &, switcher & );
+        //...
+    };
+
+    template < unsigned Size >
+    class fan
+    {
+    public:
+        explicit fan( switcher );
+        //...
+    };
+
+    class system
+      : private boost::base_from_member<an_int>
+      , private boost::base_from_member<switcher>
+      , private boost::base_from_member<switcher, 1>
+      , private boost::base_from_member<switcher, 2>
+      , protected flow_regulator
+      , public fan<6>
+    {
+        // Helper typedef's
+        typedef boost::base_from_member<an_int>       pbase0_type;
+        typedef boost::base_from_member<switcher>     pbase1_type;
+        typedef boost::base_from_member<switcher, 1>  pbase2_type;
+        typedef boost::base_from_member<switcher, 2>  pbase3_type;
+
+        typedef flow_regulator  base1_type;
+        typedef fan<6>          base2_type;
+
+    public:
+        system( double x );
+        //...
+    };
+
+    system::system( double x )
+      : pbase0_type( 0.2 )
+      , pbase1_type()
+      , pbase2_type( -16, &this->pbase0_type::member.y )
+      , pbase3_type( x, static_cast<int *>(NULL) )
+      , base1_type( pbase3_type::member, pbase1_type::member )
+      , base2_type( pbase2_type::member )
+    {
+        //...
+    }
+
+The final class has multiple sub-objects with the name `member`, so any
+use of that name needs qualification by a name of the appropriate base
+type. (Using `typedef`s ease mentioning the base types.) However, the fix
+introduces a new problem when a pointer is needed. Using the address
+operator with a sub-object qualified with its class's name results in a
+pointer-to-member (here, having a type of `an_int boost::base_from_member<
+an_int, 0> :: *`) instead of a pointer to the member (having a type of
+`an_int *`). The new problem is fixed by qualifying the sub-object with
+`this->` and is needed just for pointers, and not for references or values.
+
+There are some argument conversions in the initialization. The constructor
+argument for `pbase0_type` is converted from `double` to `float`. The first
+constructor argument for `pbase2_type` is converted from `int` to `double`.
+The second constructor argument for `pbase3_type` is a special case of
+necessary conversion; all forms of the null-pointer literal in C++ (except
+`nullptr` from C++11) also look like compile-time integral expressions, so
+C++ always interprets such code as an integer when it has overloads that can
+take either an integer or a pointer. The last conversion is necessary for the
+compiler to call a constructor form with the exact pointer type used in
+`switcher`'s constructor. (If C++11's `nullptr` is used, it still needs a
+conversion if multiple pointer types can be accepted in a constructor call
+but `std::nullptr_t` cannot.)
+
+[endsect]
+
+[section Acknowledgments]
+
+* [@http://www.boost.org/people/ed_brey.htm Ed Brey] suggested some interface
+changes.
+
+* [@http://www.moocat.org R. Samuel Klatchko] ([@mailto:rsk@moocat.org
+rsk@moocat.org], [@mailto:rsk@brightmail.com rsk@brightmail.com]) invented
+the idiom of how to use a class member for initializing a base class.
+
+* [@http://www.boost.org/people/dietmar_kuehl.htm Dietmar Kuehl] popularized the
+ base-from-member idiom in his [@http://www.informatik.uni-konstanz.de/~kuehl/c++/iostream/
+  IOStream example classes].
+
+* Jonathan Turkanis supplied an implementation of generating the constructor
+templates that can be controlled and automated with macros. The
+implementation uses the [@../../../preprocessor/index.html Preprocessor library].
+
+* [@http://www.boost.org/people/daryle_walker.html">Daryle Walker] started the
+library. Contributed the test file [@../../base_from_member_test.cpp
+base_from_member_test.cpp].
+
+[endsect]
+

doc/compressed_pair.qbk

@@ -0,0 +1,99 @@
+[/
+  Copyright 2000 Beman Dawes & John Maddock.
+
+  Distributed under the Boost Software License, Version 1.0.
+
+  See accompanying file LICENSE_1_0.txt
+  or copy at http://boost.org/LICENSE_1_0.txt
+]
+
+[article Compressed_Pair
+    [quickbook 1.5]
+    [authors [Cleary, Steve]]
+    [authors [Dawes, Beman]]
+    [authors [Hinnant, Howard]]
+    [authors [Maddock, John]]
+    [copyright 2000 Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock]
+    [license
+        Distributed under the Boost Software License, Version 1.0.
+        (See accompanying file LICENSE_1_0.txt or copy at
+        [@http://www.boost.org/LICENSE_1_0.txt])
+    ]
+]
+
+[section Overview]
+
+All of the contents of `<boost/compressed_pair.hpp>` are defined inside
+`namespace boost`.
+
+The class `compressed_pair` is very similar to `std::pair`, but if either of
+the template arguments are empty classes, then the ['empty base-class
+optimisation] is applied to compress the size of the pair.
+
+[endsect]
+
+[section Synopsis]
+
+    template <class T1, class T2>
+    class compressed_pair
+    {
+    public:
+        typedef T1                                                 first_type;
+        typedef T2                                                 second_type;
+        typedef typename call_traits<first_type>::param_type       first_param_type;
+        typedef typename call_traits<second_type>::param_type      second_param_type;
+        typedef typename call_traits<first_type>::reference        first_reference;
+        typedef typename call_traits<second_type>::reference       second_reference;
+        typedef typename call_traits<first_type>::const_reference  first_const_reference;
+        typedef typename call_traits<second_type>::const_reference second_const_reference;
+
+                 compressed_pair() : base() {}
+                 compressed_pair(first_param_type x, second_param_type y);
+        explicit compressed_pair(first_param_type x);
+        explicit compressed_pair(second_param_type y);
+
+        compressed_pair& operator=(const compressed_pair&);
+
+        first_reference       first();
+        first_const_reference first() const;
+
+        second_reference       second();
+        second_const_reference second() const;
+
+        void swap(compressed_pair& y);
+    };
+
+The two members of the pair can be accessed using the member functions
+`first()` and `second()`. Note that not all member functions can be
+instantiated for all template parameter types. In particular
+`compressed_pair` can be instantiated for reference and array types,
+however in these cases the range of constructors that can be used are
+limited. If types `T1` and `T2` are the same type, then there is only
+one version of the single-argument constructor, and this constructor
+initialises both values in the pair to the passed value.
+
+Note that if either member is a POD type, then that member is not
+zero-initialized by the `compressed_pair` default constructor: it's up
+to you to supply an initial value for these types if you want them to have
+a default value.
+
+Note that `compressed_pair` can not be instantiated if either of the
+template arguments is a union type, unless there is compiler support for
+`boost::is_union`, or if `boost::is_union` is specialised for the union
+type.
+
+Finally, a word of caution for Visual C++ 6 users: if either argument is an
+empty type, then assigning to that member will produce memory corruption,
+unless the empty type has a "do nothing" assignment operator defined. This
+is due to a bug in the way VC6 generates implicit assignment operators.
+
+[endsect]
+
+[section Acknowledgments]
+
+Based on contributions by Steve Cleary, Beman Dawes, Howard Hinnant and
+John Maddock.
+
+Maintained by [@mailto:john@johnmaddock.co.uk John Maddock].
+
+[endsect]

doc/declval.qbk

@@ -1,7 +1,6 @@
 [/
  / Copyright (c) 2008 Howard Hinnant
- / Copyright (c) 2008 Beman Dawes
- / Copyright (c) 2009-20010 Vicente J. Botet Escriba
+ / Copyright (c) 2009-20012 Vicente J. Botet Escriba
  /
  / Distributed under the Boost Software License, Version 1.0. (See accompanying
  / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -10,11 +9,9 @@
 [article Declval
     [quickbook 1.5]
     [authors [Hinnant, Howard]]
-    [authors [Dawes, Beman]]
     [authors [Botet Escriba, Vicente J.]]
     [copyright 2008 Howard Hinnant]
-    [copyright 2008 Beman Dawes]
-    [copyright 2009-2010 Vicente J. Botet Escriba]
+    [copyright 2009-2012 Vicente J. Botet Escriba]
     [license
         Distributed under the Boost Software License, Version 1.0.
         (See accompanying file LICENSE_1_0.txt or copy at
@@ -59,9 +56,9 @@ T is an lvalue-reference, otherwise an rvalue. To extend the domain of this func
   typename std::add_rvalue_reference<T>::type declval(); // not used
   
 which ensures that we can also use cv void as template parameter. The careful reader might have noticed that `declval()` 
-already exists under the name create() as part of the definition of the semantics of the type trait is_convertible in the C==0x standard. 
+already exists under the name create() as part of the definition of the semantics of the type trait is_convertible in the C++0x standard. 
 
-The provision of a new library component that allows the production of values in unevaluated expressions is considered as 
+The provision of a new library component that allows the production of values in unevaluated expressions is considered 
 important to realize constrained templates in C++0x where concepts are not available. 
 This extremely light-weight function is expected to be part of the daily tool-box of the C++0x programmer. 
 
@@ -77,7 +74,7 @@ This extremely light-weight function is expected to be part of the daily tool-bo
     namespace boost {
 
         template <typename T>
-        typename add_rvalue_reference<T>::type declval(); //noexcept; // as unevaluated operand
+        typename add_rvalue_reference<T>::type declval() noexcept; // as unevaluated operand
 
     }  // namespace boost
 
@@ -96,9 +93,22 @@ The library provides the function template declval to simplify the definition of
     template <class To, class From>
     decltype(static_cast<To>(declval<From>())) convert(From&&);
 
-Declares a function template convert which only participats in overloading if the type From can be explicitly converted to type To. 
+Declares a function template convert which only participates in overloading if the type From can be explicitly converted to type To. 
+
+[endsect]
+
+[/===============]
+[section History]
+[/===============]
+
+[heading boost 1.50]
+
+Fixes:
+
+* [@http://svn.boost.org/trac/boost/ticket/6570 #6570] Adding noexcept to boost::declval.
 
 [endsect]
 
 
 
+

doc/html/declval.html

@@ -1,163 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
-<title>Declval</title>
-<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
-<link rel="home" href="declval.html" title="Declval">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<table cellpadding="2" width="100%"><tr>
-<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td>
-<td align="center"><a href="../../../../index.html">Home</a></td>
-<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td>
-<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
-<td align="center"><a href="../../../../more/index.htm">More</a></td>
-</tr></table>
-<hr>
-<div class="spirit-nav"></div>
-<div class="article" lang="en">
-<div class="titlepage">
-<div>
-<div><h2 class="title">
-<a name="declval"></a>Declval</h2></div>
-<div><div class="authorgroup">
-<div class="author"><h3 class="author">
-<span class="firstname">Howard</span> <span class="surname">Hinnant</span>
-</h3></div>
-<div class="author"><h3 class="author">
-<span class="firstname">Beman</span> <span class="surname">Dawes</span>
-</h3></div>
-<div class="author"><h3 class="author">
-<span class="firstname">Vicente J.</span> <span class="surname">Botet Escriba</span>
-</h3></div>
-</div></div>
-<div><p class="copyright">Copyright &#169; 2008 Howard Hinnant</p></div>
-<div><p class="copyright">Copyright &#169; 2008 Beman Dawes</p></div>
-<div><p class="copyright">Copyright &#169; 2009 -2010 Vicente J. Botet Escriba</p></div>
-<div><div class="legalnotice">
-<a name="id879409"></a><p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div></div>
-</div>
-<hr>
-</div>
-<div class="toc">
-<p><b>Table of Contents</b></p>
-<dl>
-<dt><span class="section"><a href="declval.html#declval.overview">Overview</a></span></dt>
-<dt><span class="section"><a href="declval.html#declval.reference"> Reference </a></span></dt>
-</dl>
-</div>
-<div class="section" lang="en">
-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="declval.overview"></a><a class="link" href="declval.html#declval.overview" title="Overview">Overview</a>
-</h2></div></div></div>
-<p>
-      The motivation for <code class="computeroutput"><span class="identifier">declval</span></code>
-      was introduced in <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2958.html#Value" target="_top">N2958:
-      Moving Swap Forward</a>. Here follows a rewording of this chapter.
-    </p>
-<p>
-      With the provision of decltype, late-specified return types, and default template-arguments
-      for function templates a new generation of SFINAE patterns will emerge to at
-      least partially compensate the lack of concepts on the C++0x timescale. Using
-      this technique, it is sometimes necessary to obtain an object of a known type
-      in a non-using context, e.g. given the declaration
-    </p>
-<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
-<span class="identifier">T</span><span class="special">&amp;&amp;</span> <span class="identifier">declval</span><span class="special">();</span> <span class="comment">// not used
-</span></pre>
-<p>
-      as part of the function template declaration
-    </p>
-<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">To</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">From</span><span class="special">&gt;</span>
-<span class="identifier">decltype</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">To</span><span class="special">&gt;(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">From</span><span class="special">&gt;()))</span> <span class="identifier">convert</span><span class="special">(</span><span class="identifier">From</span><span class="special">&amp;&amp;);</span>
-</pre>
-<p>
-      or as part of a class template definition
-    </p>
-<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span><span class="special">&gt;</span> <span class="keyword">class</span> <span class="identifier">result_of</span><span class="special">;</span>
-
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">class</span><span class="special">...</span> <span class="identifier">ArgTypes</span><span class="special">&gt;</span>
-<span class="keyword">struct</span> <span class="identifier">result_of</span><span class="special">&lt;</span><span class="identifier">Fn</span><span class="special">(</span><span class="identifier">ArgTypes</span><span class="special">...)&gt;</span> 
-<span class="special">{</span>
-  <span class="keyword">typedef</span> <span class="identifier">decltype</span><span class="special">(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">Fn</span><span class="special">&gt;()(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">ArgTypes</span><span class="special">&gt;()...))</span> <span class="identifier">type</span><span class="special">;</span>
-<span class="special">};</span>
-</pre>
-<p>
-      The role of the function template declval() is a transformation of a type T
-      into a value without using or evaluating this function. The name is supposed
-      to direct the reader's attention to the fact that the expression <code class="computeroutput"><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;()</span></code> is
-      an lvalue if and only if T is an lvalue-reference, otherwise an rvalue. To
-      extend the domain of this function we can do a bit better by changing its declaration
-      to
-    </p>
-<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
-<span class="keyword">typename</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">add_rvalue_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">();</span> <span class="comment">// not used
-</span></pre>
-<p>
-      which ensures that we can also use cv void as template parameter. The careful
-      reader might have noticed that <code class="computeroutput"><span class="identifier">declval</span><span class="special">()</span></code> already exists under the name create() as
-      part of the definition of the semantics of the type trait is_convertible in
-      the C==0x standard.
-    </p>
-<p>
-      The provision of a new library component that allows the production of values
-      in unevaluated expressions is considered as important to realize constrained
-      templates in C++0x where concepts are not available. This extremely light-weight
-      function is expected to be part of the daily tool-box of the C++0x programmer.
-    </p>
-</div>
-<div class="section" lang="en">
-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="declval.reference"></a><a class="link" href="declval.html#declval.reference" title="Reference"> Reference </a>
-</h2></div></div></div>
-<p>
-      <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">utility</span><span class="special">/</span><span class="identifier">declval</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
-    </p>
-<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
-
-    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
-    <span class="keyword">typename</span> <span class="identifier">add_rvalue_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">();</span> <span class="comment">//noexcept; // as unevaluated operand
-</span>
-<span class="special">}</span>  <span class="comment">// namespace boost
-</span></pre>
-<p>
-      The library provides the function template declval to simplify the definition
-      of expressions which occur as unevaluated operands.
-    </p>
-<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
-<span class="keyword">typename</span> <span class="identifier">add_rvalue_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">();</span>
-</pre>
-<p>
-      <span class="bold"><strong>Remarks:</strong></span> If this function is used, the program
-      is ill-formed.
-    </p>
-<p>
-      <span class="bold"><strong>Remarks:</strong></span> The template parameter T of declval
-      may be an incomplete type.
-    </p>
-<p>
-      <span class="bold"><strong>Example:</strong></span>
-    </p>
-<pre class="programlisting"><span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">To</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">From</span><span class="special">&gt;</span>
-<span class="identifier">decltype</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">To</span><span class="special">&gt;(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">From</span><span class="special">&gt;()))</span> <span class="identifier">convert</span><span class="special">(</span><span class="identifier">From</span><span class="special">&amp;&amp;);</span>
-</pre>
-<p>
-      Declares a function template convert which only participats in overloading
-      if the type From can be explicitly converted to type To.
-    </p>
-</div>
-</div>
-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left"><p><small>Last revised: September 16, 2010 at 16:19:10 GMT</small></p></td>
-<td align="right"><div class="copyright-footer"></div></td>
-</tr></table>
-<hr>
-<div class="spirit-nav"></div>
-</body>
-</html>

doc/html/string_view.html

@@ -0,0 +1,381 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>String_View</title>
+<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.77.1">
+<link rel="home" href="string_view.html" title="String_View">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<table cellpadding="2" width="100%"><tr>
+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td>
+<td align="center"><a href="../../../../index.html">Home</a></td>
+<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td>
+<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="../../../../more/index.htm">More</a></td>
+</tr></table>
+<hr>
+<div class="spirit-nav"></div>
+<div class="article">
+<div class="titlepage">
+<div>
+<div><h2 class="title">
+<a name="string_view"></a>String_View</h2></div>
+<div><div class="authorgroup">
+<div class="author"><h3 class="author">
+<span class="firstname">Marshall</span> <span class="surname">Clow</span>
+</h3></div>
+<div class="author"><h3 class="author">
+<span class="firstname">Beman</span> <span class="surname">Dawes</span>
+</h3></div>
+</div></div>
+<div><p class="copyright">Copyright &#169; 2012 Marshall Clow</p></div>
+<div><p class="copyright">Copyright &#169; 2015 Beman Dawes</p></div>
+<div><div class="legalnotice">
+<a name="string_view.legal"></a><p>
+        Distributed under the Boost Software License, Version 1.0. <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>
+      </p>
+</div></div>
+</div>
+<hr>
+</div>
+<div class="toc">
+<p><b>Table of Contents</b></p>
+<dl>
+<dt><span class="section"><a href="string_view.html#string_view.overview">Overview</a></span></dt>
+<dt><span class="section"><a href="string_view.html#string_view.examples">Examples</a></span></dt>
+<dt><span class="section"><a href="string_view.html#string_view.reference">Reference </a></span></dt>
+<dt><span class="section"><a href="string_view.html#string_view.compiler_support">Compiler Support</a></span></dt>
+<dt><span class="section"><a href="string_view.html#string_view.history">History</a></span></dt>
+</dl>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_view.overview"></a><a class="link" href="string_view.html#string_view.overview" title="Overview">Overview</a>
+</h2></div></div></div>
+<p>
+      Boost.StringView is an implementation of <code class="computeroutput"><span class="identifier">string_view</span></code>
+      as specified in <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html#string.view" target="_top">N4480:
+      ISO/IEC DTS 19568, Technical Specification - C++ Extensions for Library Fundamentals</a>.
+    </p>
+<p>
+      When you are parsing/processing strings from some external source, frequently
+      you want to pass a piece of text to a procedure for specialized processing.
+      The canonical way to do this is as a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>,
+      but that has certain drawbacks:
+    </p>
+<p>
+      1) If you are processing a buffer of text (say a HTTP response or the contents
+      of a file), then you have to create the string from the text you want to pass,
+      which involves memory allocation and copying of data.
+    </p>
+<p>
+      2) if a routine receives a constant <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>
+      and wants to pass a portion of that string to another routine, then it must
+      create a new string of that substring.
+    </p>
+<p>
+      3) A routine receives a constant <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>
+      and wants to return a portion of the string, then it must create a new string
+      to return.
+    </p>
+<p>
+      <code class="computeroutput"><span class="identifier">string_view</span></code> is designed to
+      solve these efficiency problems. A <code class="computeroutput"><span class="identifier">string_view</span></code>
+      is a read-only reference to a contiguous sequence of characters, and provides
+      much of the functionality of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>.
+      A <code class="computeroutput"><span class="identifier">string_view</span></code> is cheap to create,
+      copy and pass by value, because it does not actually own the storage that it
+      points to.
+    </p>
+<p>
+      A <code class="computeroutput"><span class="identifier">string_view</span></code> is implemented
+      as a small struct that contains a pointer to the start of the character data
+      and a count. A <code class="computeroutput"><span class="identifier">string_view</span></code>
+      is cheap to create and cheap to copy.
+    </p>
+<p>
+      <code class="computeroutput"><span class="identifier">string_view</span></code> acts as a container;
+      it includes all the methods that you would expect in a container, including
+      iteration support, <code class="computeroutput"><span class="keyword">operator</span> <span class="special">[]</span></code>,
+      <code class="computeroutput"><span class="identifier">at</span></code> and <code class="computeroutput"><span class="identifier">size</span></code>.
+      It can be used with any of the iterator-based algorithms in the STL - as long
+      as you don't need to change the underlying data (<code class="computeroutput"><span class="identifier">sort</span></code>
+      and <code class="computeroutput"><span class="identifier">remove</span></code>, for example, will
+      not work)
+    </p>
+<p>
+      Besides generic container functionality, <code class="computeroutput"><span class="identifier">string_view</span></code>
+      provides a subset of the interface of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>.
+      This makes it easy to replace parameters of type <code class="computeroutput"><span class="keyword">const</span>
+      <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&amp;</span></code>
+      with <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">string_view</span></code>. Like <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>,
+      <code class="computeroutput"><span class="identifier">string_view</span></code> has a static member
+      variable named <code class="computeroutput"><span class="identifier">npos</span></code> to denote
+      the result of failed searches, and to mean "the end".
+    </p>
+<p>
+      Because a <code class="computeroutput"><span class="identifier">string_view</span></code> does
+      not own the data that it "points to", it introduces lifetime issues
+      into code that uses it. The programmer must ensure that the data that a <code class="computeroutput"><span class="identifier">string_view</span></code> refers to exists as long as the
+      <code class="computeroutput"><span class="identifier">string_view</span></code> does.
+    </p>
+<p>
+      Note: The header actually contains a class template, <code class="computeroutput"><span class="identifier">basic_string_view</span></code>
+      and four typedefs:
+    </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span> <span class="special">=</span> <span class="identifier">char_traits</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">&gt;&gt;</span>
+    <span class="keyword">class</span> <span class="identifier">basic_string_view</span><span class="special">;</span>
+
+<span class="keyword">typedef</span> <span class="identifier">basic_string_view</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;</span>     <span class="identifier">string_view</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">basic_string_view</span><span class="special">&lt;</span><span class="keyword">char16_t</span><span class="special">&gt;</span> <span class="identifier">u16string_view</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">basic_string_view</span><span class="special">&lt;</span><span class="keyword">char32_t</span><span class="special">&gt;</span> <span class="identifier">u32string_view</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">basic_string_view</span><span class="special">&lt;</span><span class="keyword">wchar_t</span><span class="special">&gt;</span>  <span class="identifier">wstring_view</span><span class="special">;</span>
+</pre>
+<p>
+      So you can have views of strings of any of the four built-in character types
+      as well as strings of user-defined character-like type strings. For the sake
+      of simple exposition, we concentrate on <code class="computeroutput"><span class="identifier">string_view</span></code>
+      (i.e. <code class="computeroutput"><span class="keyword">char</span></code> strings) in this documentation.
+    </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_view.examples"></a><a class="link" href="string_view.html#string_view.examples" title="Examples">Examples</a>
+</h2></div></div></div>
+<p>
+      Integrating <code class="computeroutput"><span class="identifier">string_view</span></code> into
+      your code is fairly simple. Wherever you pass a <code class="computeroutput"><span class="keyword">const</span>
+      <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&amp;</span></code>
+      or <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code> as a parameter, that's a candidate
+      for passing a <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">string_view</span></code>.
+    </p>
+<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">extract_part</span> <span class="special">(</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&amp;</span><span class="identifier">bar</span> <span class="special">)</span> <span class="special">{</span>
+    <span class="keyword">return</span> <span class="identifier">bar</span><span class="special">.</span><span class="identifier">substr</span> <span class="special">(</span> <span class="number">2</span><span class="special">,</span> <span class="number">3</span> <span class="special">);</span>
+    <span class="special">}</span>
+
+<span class="keyword">if</span> <span class="special">(</span> <span class="identifier">extract_part</span> <span class="special">(</span> <span class="string">"ABCDEFG"</span> <span class="special">).</span><span class="identifier">front</span><span class="special">()</span> <span class="special">==</span> <span class="char">'C'</span> <span class="special">)</span> <span class="special">{</span> <span class="comment">/* do something */</span> <span class="special">}</span>
+</pre>
+<p>
+      Let's figure out what happens in this (contrived) example.
+    </p>
+<p>
+      First, a temporary string is created from the string literal <code class="computeroutput"><span class="string">"ABCDEFG"</span></code>, and it is passed (by reference)
+      to the routine <code class="computeroutput"><span class="identifier">extract_part</span></code>.
+      Then a second string is created in the call <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">::</span><span class="identifier">substr</span></code>
+      and returned to <code class="computeroutput"><span class="identifier">extract_part</span></code>
+      (this copy may be elided by RVO). Then <code class="computeroutput"><span class="identifier">extract_part</span></code>
+      returns that string back to the caller (again this copy may be elided). The
+      first temporary string is deallocated, and <code class="computeroutput"><span class="identifier">front</span></code>
+      is called on the second string, and then it is deallocated as well.
+    </p>
+<p>
+      Two <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>s are created, and two copy operations.
+      That's (potentially) four memory allocations and deallocations, and the associated
+      copying of data.
+    </p>
+<p>
+      Now let's look at the same code with <code class="computeroutput"><span class="identifier">string_view</span></code>:
+    </p>
+<pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">string_view</span> <span class="identifier">extract_part</span> <span class="special">(</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">string_view</span> <span class="identifier">bar</span> <span class="special">)</span> <span class="special">{</span>
+    <span class="keyword">return</span> <span class="identifier">bar</span><span class="special">.</span><span class="identifier">substr</span> <span class="special">(</span> <span class="number">2</span><span class="special">,</span> <span class="number">3</span> <span class="special">);</span>
+    <span class="special">}</span>
+
+<span class="keyword">if</span> <span class="special">(</span> <span class="identifier">extract_part</span> <span class="special">(</span> <span class="string">"ABCDEFG"</span> <span class="special">).</span><span class="identifier">front</span><span class="special">()</span> <span class="special">==</span> <span class="string">"C"</span> <span class="special">)</span> <span class="special">{</span> <span class="comment">/* do something */</span> <span class="special">}</span>
+</pre>
+<p>
+      No memory allocations. No copying of character data. No changes to the code
+      other than the types. There are two <code class="computeroutput"><span class="identifier">string_view</span></code>s
+      created, and two <code class="computeroutput"><span class="identifier">string_view</span></code>s
+      copied, but those are cheap operations.
+    </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_view.reference"></a><a class="link" href="string_view.html#string_view.reference" title="Reference">Reference </a>
+</h2></div></div></div>
+<p>
+      The header file "string_view.hpp" defines a class template <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">basic_string_view</span></code>,
+      and four specializations - for <code class="computeroutput"><span class="keyword">char</span></code>
+      / <code class="computeroutput"><span class="keyword">wchar_t</span></code> / <code class="computeroutput"><span class="keyword">char16_t</span></code>
+      / <code class="computeroutput"><span class="keyword">char32_t</span></code> .
+    </p>
+<p>
+      <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">utility</span><span class="special">/</span><span class="identifier">string_view</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
+    </p>
+<p>
+      Types:
+    </p>
+<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">traits</span> <span class="identifier">traits_type</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">charT</span> <span class="identifier">value_type</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">pointer</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">const_pointer</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="identifier">reference</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="identifier">const_reference</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">const_pointer</span> <span class="identifier">const_iterator</span><span class="special">;</span>  <span class="comment">// implementation defined</span>
+<span class="keyword">typedef</span> <span class="identifier">const_iterator</span> <span class="identifier">iterator</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">reverse_iterator</span><span class="special">&lt;</span><span class="identifier">const_iterator</span><span class="special">&gt;</span> <span class="identifier">const_reverse_iterator</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">const_reverse_iterator</span> <span class="identifier">reverse_iterator</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">size_type</span><span class="special">;</span>
+<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> <span class="identifier">difference_type</span><span class="special">;</span>
+<span class="keyword">static</span> <span class="identifier">BOOST_CONSTEXPR_OR_CONST</span> <span class="identifier">size_type</span> <span class="identifier">npos</span> <span class="special">=</span> <span class="identifier">size_type</span><span class="special">(-</span><span class="number">1</span><span class="special">);</span>
+</pre>
+<p>
+      Construction and copying:
+    </p>
+<pre class="programlisting"><span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">basic_string_view</span> <span class="special">()</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>    <span class="comment">// Constructs empty string_view</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">basic_string_view</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">basic_string_view</span> <span class="special">&amp;</span><span class="identifier">rhs</span><span class="special">)</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">basic_string_view</span><span class="special">&amp;</span> <span class="keyword">operator</span><span class="special">=(</span><span class="keyword">const</span> <span class="identifier">basic_string_view</span> <span class="special">&amp;</span><span class="identifier">rhs</span><span class="special">)</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Allocator</span><span class="special">&gt;</span>
+  <span class="identifier">basic_string_view</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">,</span> <span class="identifier">Allocator</span><span class="special">&gt;&amp;</span> <span class="identifier">str</span><span class="special">)</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span> <span class="comment">// Ctor from std::string</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">basic_string_view</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">str</span><span class="special">);</span> <span class="comment">// Ctor from NULL-terminated string</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">basic_string_view</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">str</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">len</span><span class="special">);</span> <span class="comment">// Ctor from pointer, length pair</span>
+</pre>
+<p>
+      <code class="computeroutput"><span class="identifier">string_view</span></code> does not define
+      a move constructor or a move-assignment operator because copying a <code class="computeroutput"><span class="identifier">string_view</span></code> is just as cheap as moving one
+      would be.
+    </p>
+<p>
+      Basic container-like functions:
+    </p>
+<pre class="programlisting"><span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">size</span><span class="special">()</span>     <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">length</span><span class="special">()</span>   <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">max_size</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">bool</span> <span class="identifier">empty</span><span class="special">()</span>         <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+
+<span class="comment">// All iterators are const_iterators</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">const_iterator</span>  <span class="identifier">begin</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">const_iterator</span> <span class="identifier">cbegin</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">const_iterator</span>    <span class="identifier">end</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="identifier">const_iterator</span>   <span class="identifier">cend</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">const_reverse_iterator</span>         <span class="identifier">rbegin</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">const_reverse_iterator</span>        <span class="identifier">crbegin</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">const_reverse_iterator</span>           <span class="identifier">rend</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+<span class="identifier">const_reverse_iterator</span>          <span class="identifier">crend</span><span class="special">()</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+</pre>
+<p>
+      Access to the individual elements (all of which are const):
+    </p>
+<pre class="programlisting"><span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="keyword">operator</span><span class="special">[](</span><span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="identifier">at</span><span class="special">(</span><span class="identifier">size_t</span> <span class="identifier">pos</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="identifier">front</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">&amp;</span> <span class="identifier">back</span><span class="special">()</span>  <span class="keyword">const</span> <span class="special">;</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">data</span><span class="special">()</span>  <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span> <span class="special">;</span>
+</pre>
+<p>
+      Modifying the <code class="computeroutput"><span class="identifier">string_view</span></code> (but
+      not the underlying data):
+    </p>
+<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">clear</span><span class="special">();</span>  <span class="comment">// boost extension</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="keyword">void</span> <span class="identifier">remove_prefix</span><span class="special">(</span><span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">);</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="keyword">void</span> <span class="identifier">remove_suffix</span><span class="special">(</span><span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">);</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="keyword">void</span> <span class="identifier">swap</span><span class="special">(</span><span class="identifier">basic_string_view</span><span class="special">&amp;</span> <span class="identifier">s</span><span class="special">)</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+</pre>
+<p>
+      Searching:
+    </p>
+<pre class="programlisting"><span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find</span><span class="special">(</span><span class="identifier">basic_string_view</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">rfind</span><span class="special">(</span><span class="identifier">basic_string_view</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">rfind</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">rfind</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">rfind</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_first_of</span><span class="special">(</span><span class="identifier">basic_string_view</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_first_of</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_first_of</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_first_of</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_last_of</span><span class="special">(</span><span class="identifier">basic_string_view</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_last_of</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_last_of</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_last_of</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_first_not_of</span><span class="special">(</span><span class="identifier">basic_string_view</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_first_not_of</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_first_not_of</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_first_not_of</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_last_not_of</span><span class="special">(</span><span class="identifier">basic_string_view</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_last_not_of</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span> <span class="identifier">BOOST_NOEXCEPT</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_last_not_of</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">size_type</span> <span class="identifier">find_last_not_of</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">bool</span> <span class="identifier">starts_with</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>                 <span class="comment">// boost extension</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">bool</span> <span class="identifier">starts_with</span><span class="special">(</span><span class="identifier">basic_string_view</span> <span class="identifier">x</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>     <span class="comment">// boost extension</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">bool</span> <span class="identifier">ends_with</span><span class="special">(</span><span class="identifier">charT</span> <span class="identifier">c</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>                   <span class="comment">// boost extension</span>
+<span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">bool</span> <span class="identifier">ends_with</span><span class="special">(</span><span class="identifier">basic_string_view</span> <span class="identifier">x</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span>       <span class="comment">// boost extension</span>
+</pre>
+<p>
+      String-like operations:
+    </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">&gt;</span>  <span class="comment">// Only present if compiler supports C++11 explicit conversion</span>
+  <span class="keyword">explicit</span> <span class="keyword">operator</span> <span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">,</span> <span class="identifier">Allocator</span><span class="special">&gt;()</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Allocator</span> <span class="special">=</span> <span class="identifier">allocator</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">&gt;</span> <span class="special">&gt;</span>  <span class="comment">// Default only present if compiler supports</span>
+  <span class="identifier">basic_string</span><span class="special">&lt;</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">,</span> <span class="identifier">Allocator</span><span class="special">&gt;</span>       <span class="comment">//   C++11 default template parameters</span>
+    <span class="identifier">to_string</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span><span class="special">&amp;</span> <span class="identifier">a</span> <span class="special">=</span> <span class="identifier">Allocator</span><span class="special">())</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="identifier">size_type</span> <span class="identifier">copy</span><span class="special">(</span><span class="identifier">charT</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="identifier">pos</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+
+<span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">basic_string_view</span> <span class="identifier">substr</span><span class="special">(</span><span class="identifier">size_type</span> <span class="identifier">pos</span><span class="special">,</span>
+  <span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">=</span><span class="identifier">npos</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span> <span class="comment">// Create new string_view</span>
+</pre>
+<p>
+      Comparison:
+    </p>
+<pre class="programlisting"><span class="identifier">To</span> <span class="identifier">be</span> <span class="identifier">supplied</span>
+</pre>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_view.compiler_support"></a><a class="link" href="string_view.html#string_view.compiler_support" title="Compiler Support">Compiler Support</a>
+</h2></div></div></div>
+<p>
+      This Boost implementation only requires a C++03 compliant compiler.
+    </p>
+<p>
+      The actual Library Fundamentals specification assumes a C++14 compliant compiler,
+      so a few features are only present if actually supported by the compiler. Boost
+      macros such as BOOST_CONSTEXPR, BOOST_CXX14_CONSTEXPR, and BOOST_NOEXCEPT supply
+      certain features if supported by the compiler.
+    </p>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="string_view.history"></a><a class="link" href="string_view.html#string_view.history" title="History">History</a>
+</h2></div></div></div>
+<h4>
+<a name="string_view.history.h0"></a>
+      <span class="phrase"><a name="string_view.history.boost_1_53"></a></span><a class="link" href="string_view.html#string_view.history.boost_1_53">boost
+      1.53</a>
+    </h4>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+          Introduced, based on Jeffrey Yaskin's <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html" target="_top">N3442:
+          string_ref: a non-owning reference to a string</a>
+        </li></ul></div>
+<h4>
+<a name="string_view.history.h1"></a>
+      <span class="phrase"><a name="string_view.history.boost_1_60"></a></span><a class="link" href="string_view.html#string_view.history.boost_1_60">boost
+      1.60</a>
+    </h4>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+          Updated to reflect <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html#string.view" target="_top">N4480:
+          ISO/IEC DTS 19568, Technical Specification - C++ Extensions for Library
+          Fundamentals</a>
+        </li></ul></div>
+</div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"><p><small>Last revised: July 17, 2015 at 19:19:23 GMT</small></p></td>
+<td align="right"><div class="copyright-footer"></div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav"></div>
+</body>
+</html>

doc/string_ref.qbk

@@ -0,0 +1,167 @@
+[/
+ / Copyright (c) 2012 Marshall Clow
+ /
+ / Distributed under the Boost Software License, Version 1.0. (See accompanying
+ / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ /]
+
+[article String_Ref
+    [quickbook 1.5]
+    [authors [Clow, Marshall]]
+    [copyright 2012 Marshall Clow]
+    [license
+        Distributed under the Boost Software License, Version 1.0.
+        (See accompanying file LICENSE_1_0.txt or copy at
+        [@http://www.boost.org/LICENSE_1_0.txt])
+    ]
+]
+
+[/===============]
+[section Overview]
+[/===============]
+
+Boost.StringRef is an implementation of Jeffrey Yaskin's [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html N3442:
+string_ref: a non-owning reference to a string]. 
+
+When you are parsing/processing strings from some external source, frequently you want to pass a piece of text to a procedure for specialized processing. The canonical way to do this is as a `std::string`, but that has certain drawbacks:
+
+1) If you are processing a buffer of text (say a HTTP response or the contents of a file), then you have to create the string from the text you want to pass, which involves memory allocation and copying of data.
+
+2) if a routine receives a constant `std::string` and wants to pass a portion of that string to another routine, then it must create a new string of that substring.
+
+3) A routine receives a constant `std::string` and wants to return a portion of the string, then it must create a new string to return.
+
+`string_ref` is designed to solve these efficiency problems. A `string_ref` is a read-only reference to a contiguous sequence of characters, and provides much of the functionality of `std::string`. A `string_ref` is cheap to create, copy and pass by value, because it does not actually own the storage that it points to. 
+
+A `string_ref` is implemented as a small struct that contains a pointer to the start of the character data and a count. A `string_ref` is cheap to create and cheap to copy.
+
+`string_ref` acts as a container; it includes all the methods that you would expect in a container, including iteration support, `operator []`, `at` and `size`. It can be used with any of the iterator-based algorithms in the STL - as long as you don't need to change the underlying data (`sort` and `remove`, for example, will not work)
+
+Besides generic container functionality, `string_ref` provides a subset of the interface of `std::string`. This makes it easy to replace parameters of type `const std::string &` with `boost::string_ref`. Like `std::string`, `string_ref` has a static member variable named `npos` to denote the result of failed searches, and to mean "the end".
+
+Because a `string_ref` does not own the data that it "points to", it introduces lifetime issues into code that uses it. The programmer must ensure that the data that a `string_ref` refers to exists as long as the `string_ref` does.
+
+[endsect]
+
+
+[/===============]
+[section Examples]
+[/===============]
+
+Integrating `string_ref` into your code is fairly simple. Wherever you pass a `const std::string &` or `std::string` as a parameter, that's a candidate for passing a `boost::string_ref`.
+
+    std::string extract_part ( const std::string &bar ) {
+        return bar.substr ( 2, 3 );
+        }
+        
+    if ( extract_part ( "ABCDEFG" ).front() == 'C' ) { /* do something */ }
+    
+Let's figure out what happens in this (contrived) example.
+
+First, a temporary string is created from the string literal `"ABCDEFG"`, and it is passed (by reference) to the routine `extract_part`. Then a second string is created in the call `std::string::substr` and returned to `extract_part` (this copy may be elided by RVO). Then `extract_part` returns that string back to the caller (again this copy may be elided). The first temporary string is deallocated, and `front` is called on the second string, and then it is deallocated as well.
+
+Two `std::string`s are created, and two copy operations. That's (potentially) four memory allocations and deallocations, and the associated copying of data.
+
+Now let's look at the same code with `string_ref`:
+
+    boost::string_ref extract_part ( boost::string_ref bar ) {
+        return bar.substr ( 2, 3 );
+        }
+        
+    if ( extract_part ( "ABCDEFG" ).front() == "C" ) { /* do something */ }
+
+No memory allocations. No copying of character data. No changes to the code other than the types. There are two `string_ref`s created, and two `string_ref`s copied, but those are cheap operations.
+
+[endsect]
+
+
+[/=================]
+[section:reference Reference ]
+[/=================]
+
+The header file "string_ref.hpp" defines a template `boost::basic_string_ref`, and four specializations - for `char` / `wchar_t` / `char16_t` / `char32_t` .
+
+`#include <boost/utility/string_ref.hpp>`
+
+Construction and copying:
+
+    BOOST_CONSTEXPR basic_string_ref ();    // Constructs an empty string_ref
+    BOOST_CONSTEXPR basic_string_ref(const charT* str); // Constructs from a NULL-terminated string
+    BOOST_CONSTEXPR basic_string_ref(const charT* str, size_type len); // Constructs from a pointer, length pair
+    template<typename Allocator>
+    basic_string_ref(const std::basic_string<charT, traits, Allocator>& str); // Constructs from a std::string
+    basic_string_ref (const basic_string_ref &rhs);
+    basic_string_ref& operator=(const basic_string_ref &rhs);
+
+`string_ref` does not define a move constructor nor a move-assignment operator because copying a `string_ref` is just a cheap as moving one.
+
+Basic container-like functions:
+
+    BOOST_CONSTEXPR size_type size()     const ;
+    BOOST_CONSTEXPR size_type length()   const ;
+    BOOST_CONSTEXPR size_type max_size() const ;
+    BOOST_CONSTEXPR bool empty()         const ;
+    
+    // All iterators are const_iterators
+    BOOST_CONSTEXPR const_iterator  begin() const ;
+    BOOST_CONSTEXPR const_iterator cbegin() const ;
+    BOOST_CONSTEXPR const_iterator    end() const ;
+    BOOST_CONSTEXPR const_iterator   cend() const ;
+    const_reverse_iterator         rbegin() const ;
+    const_reverse_iterator        crbegin() const ;
+    const_reverse_iterator           rend() const ;
+    const_reverse_iterator          crend() const ;
+
+Access to the individual elements (all of which are const):
+
+    BOOST_CONSTEXPR const charT& operator[](size_type pos) const ;
+    const charT& at(size_t pos) const ;
+    BOOST_CONSTEXPR const charT& front() const ;
+    BOOST_CONSTEXPR const charT& back()  const ;
+    BOOST_CONSTEXPR const charT* data()  const ;
+
+Modifying the `string_ref` (but not the underlying data):
+
+    void clear();
+    void remove_prefix(size_type n);
+    void remove_suffix(size_type n);
+
+Searching:
+
+    size_type find(basic_string_ref s) const ;
+    size_type find(charT c) const ;
+    size_type rfind(basic_string_ref s) const ;
+    size_type rfind(charT c) const ;
+    size_type find_first_of(charT c) const ;
+    size_type find_last_of (charT c) const ;
+        
+    size_type find_first_of(basic_string_ref s) const ;
+    size_type find_last_of(basic_string_ref s) const ;
+    size_type find_first_not_of(basic_string_ref s) const ;
+    size_type find_first_not_of(charT c) const ;
+    size_type find_last_not_of(basic_string_ref s) const ;
+    size_type find_last_not_of(charT c) const ;
+
+String-like operations:
+
+    BOOST_CONSTEXPR basic_string_ref substr(size_type pos, size_type n=npos) const ; // Creates a new string_ref
+    bool starts_with(charT c) const ;
+    bool starts_with(basic_string_ref x) const ;
+    bool ends_with(charT c) const ;
+    bool ends_with(basic_string_ref x) const ;
+
+[endsect]
+
+[/===============]
+[section History]
+[/===============]
+
+[heading boost 1.53]
+* Introduced
+    
+
+[endsect]
+
+
+
+

doc/string_view.qbk

@@ -0,0 +1,243 @@
+[/
+ / Copyright (c) 2012 Marshall Clow
+ / Copyright (c) 2015 Beman Dawes
+ /
+ / Distributed under the Boost Software License, Version 1.0. (See accompanying
+ / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ /]
+
+[article String_View
+    [quickbook 1.5]
+    [authors [Clow, Marshall] [Dawes, Beman]]
+    [copyright 2012 Marshall Clow, 2015 Beman Dawes]
+    [license
+        Distributed under the Boost Software License, Version 1.0.
+        [@http://www.boost.org/LICENSE_1_0.txt] 
+    ]
+]
+
+[/===============]
+[section Overview]
+[/===============]
+
+Boost.StringView is an implementation of `string_view` as specified in [@
+http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html#string.view N4480:
+ISO/IEC DTS 19568, Technical Specification - C++ Extensions for Library Fundamentals].
+    
+When you are parsing/processing strings from some external source, frequently you want to pass a piece of text to a procedure for specialized processing. The canonical way to do this is as a `std::string`, but that has certain drawbacks:
+
+1) If you are processing a buffer of text (say a HTTP response or the contents of a file), then you have to create the string from the text you want to pass, which involves memory allocation and copying of data.
+
+2) if a routine receives a constant `std::string` and wants to pass a portion of that string to another routine, then it must create a new string of that substring.
+
+3) A routine receives a constant `std::string` and wants to return a portion of the string, then it must create a new string to return.
+
+`string_view` is designed to solve these efficiency problems. A `string_view` is a read-only reference to a contiguous sequence of characters, and provides much of the functionality of `std::string`. A `string_view` is cheap to create, copy and pass by value, because it does not actually own the storage that it points to. 
+
+A `string_view` is implemented as a small struct that contains a pointer to the start of the character data and a count. A `string_view` is cheap to create and cheap to copy.
+
+`string_view` acts as a container; it includes all the methods that you would expect in a container, including iteration support, `operator []`, `at` and `size`. It can be used with any of the iterator-based algorithms in the STL - as long as you don't need to change the underlying data (`sort` and `remove`, for example, will not work)
+
+Besides generic container functionality, `string_view` provides a subset of the interface of `std::string`. This makes it easy to replace parameters of type `const std::string &` with `boost::string_view`. Like `std::string`, `string_view` has a static member variable named `npos` to denote the result of failed searches, and to mean "the end".
+
+Because a `string_view` does not own the data that it "points to", it introduces lifetime issues into code that uses it. The programmer must ensure that the data that a `string_view` refers to exists as long as the `string_view` does.
+
+Note: The header actually contains a class template, `basic_string_view` and four typedefs:
+
+    template<class charT, class traits = char_traits<charT>>
+        class basic_string_view;
+   
+    typedef basic_string_view<char>     string_view;
+    typedef basic_string_view<char16_t> u16string_view;
+    typedef basic_string_view<char32_t> u32string_view;
+    typedef basic_string_view<wchar_t>  wstring_view;
+
+So you can have views of strings of any of the four built-in character types as well as strings of user-defined character-like type strings. For the sake of simple exposition, we concentrate on `string_view` (i.e. `char` strings) in this documentation.
+
+[endsect]
+
+
+[/===============]
+[section Examples]
+[/===============]
+
+Integrating `string_view` into your code is fairly simple. Wherever you pass a `const std::string &` or `std::string` as a parameter, that's a candidate for passing a `boost::string_view`.
+
+    std::string extract_part ( const std::string &bar ) {
+        return bar.substr ( 2, 3 );
+        }
+        
+    if ( extract_part ( "ABCDEFG" ).front() == 'C' ) { /* do something */ }
+    
+Let's figure out what happens in this (contrived) example.
+
+First, a temporary string is created from the string literal `"ABCDEFG"`, and it is passed (by reference) to the routine `extract_part`. Then a second string is created in the call `std::string::substr` and returned to `extract_part` (this copy may be elided by RVO). Then `extract_part` returns that string back to the caller (again this copy may be elided). The first temporary string is deallocated, and `front` is called on the second string, and then it is deallocated as well.
+
+Two `std::string`s are created, and two copy operations. That's (potentially) four memory allocations and deallocations, and the associated copying of data.
+
+Now let's look at the same code with `string_view`:
+
+    boost::string_view extract_part ( boost::string_view bar ) {
+        return bar.substr ( 2, 3 );
+        }
+        
+    if ( extract_part ( "ABCDEFG" ).front() == "C" ) { /* do something */ }
+
+No memory allocations. No copying of character data. No changes to the code other than the types. There are two `string_view`s created, and two `string_view`s copied, but those are cheap operations.
+
+[endsect]
+
+
+[/=================]
+[section:reference Reference ]
+[/=================]
+
+The header file "string_view.hpp" defines a class template `boost::basic_string_view`, and four specializations - for `char` / `wchar_t` / `char16_t` / `char32_t` .
+
+`#include <boost/utility/string_view.hpp>`
+
+Types:
+
+    typedef traits traits_type;
+    typedef charT value_type;
+    typedef charT* pointer;
+    typedef const charT* const_pointer;
+    typedef charT& reference;
+    typedef const charT& const_reference;
+    typedef const_pointer const_iterator;  // implementation defined
+    typedef const_iterator iterator;
+    typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+    typedef const_reverse_iterator reverse_iterator;
+    typedef std::size_t size_type;
+    typedef std::ptrdiff_t difference_type;
+    static BOOST_CONSTEXPR_OR_CONST size_type npos = size_type(-1);
+
+Construction and copying:
+
+    BOOST_CONSTEXPR basic_string_view () BOOST_NOEXCEPT;    // Constructs empty string_view
+    BOOST_CONSTEXPR basic_string_view (const basic_string_view &rhs) BOOST_NOEXCEPT;
+    basic_string_view& operator=(const basic_string_view &rhs) BOOST_NOEXCEPT;
+    template<typename Allocator>
+      basic_string_view(const std::basic_string<charT, traits, Allocator>& str) BOOST_NOEXCEPT; // Ctor from std::string
+    BOOST_CONSTEXPR basic_string_view(const charT* str); // Ctor from NULL-terminated string
+    BOOST_CONSTEXPR basic_string_view(const charT* str, size_type len); // Ctor from pointer, length pair
+
+`string_view` does not define a move constructor or a move-assignment operator because copying a `string_view` is just as cheap as moving one would be.
+
+Basic container-like functions:
+
+    BOOST_CONSTEXPR size_type size()     const BOOST_NOEXCEPT ;
+    BOOST_CONSTEXPR size_type length()   const BOOST_NOEXCEPT ;
+    BOOST_CONSTEXPR size_type max_size() const BOOST_NOEXCEPT ;
+    BOOST_CONSTEXPR bool empty()         const BOOST_NOEXCEPT ;
+    
+    // All iterators are const_iterators
+    BOOST_CONSTEXPR const_iterator  begin() const BOOST_NOEXCEPT ;
+    BOOST_CONSTEXPR const_iterator cbegin() const BOOST_NOEXCEPT ;
+    BOOST_CONSTEXPR const_iterator    end() const BOOST_NOEXCEPT ;
+    BOOST_CONSTEXPR const_iterator   cend() const BOOST_NOEXCEPT ;
+    const_reverse_iterator         rbegin() const BOOST_NOEXCEPT ;
+    const_reverse_iterator        crbegin() const BOOST_NOEXCEPT ;
+    const_reverse_iterator           rend() const BOOST_NOEXCEPT ;
+    const_reverse_iterator          crend() const BOOST_NOEXCEPT ;
+
+Access to the individual elements (all of which are const):
+
+    BOOST_CONSTEXPR const charT& operator[](size_type pos) const ;
+    BOOST_CONSTEXPR const charT& at(size_t pos) const ;
+    BOOST_CONSTEXPR const charT& front() const ;
+    BOOST_CONSTEXPR const charT& back()  const ;
+    BOOST_CONSTEXPR const charT* data()  const BOOST_NOEXCEPT ;
+
+Modifying the `string_view` (but not the underlying data):
+
+    void clear();  // boost extension
+    BOOST_CXX14_CONSTEXPR void remove_prefix(size_type n);
+    BOOST_CXX14_CONSTEXPR void remove_suffix(size_type n);
+    BOOST_CXX14_CONSTEXPR void swap(basic_string_view& s) BOOST_NOEXCEPT;
+    
+Searching:
+
+    BOOST_CXX14_CONSTEXPR size_type find(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find(charT c, size_type pos = 0) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find(const charT* s, size_type pos, size_type n) const;
+    BOOST_CXX14_CONSTEXPR size_type find(const charT* s, size_type pos = 0) const;
+    
+    BOOST_CXX14_CONSTEXPR size_type rfind(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type rfind(charT c, size_type pos = npos) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type rfind(const charT* s, size_type pos, size_type n) const;
+    BOOST_CXX14_CONSTEXPR size_type rfind(const charT* s, size_type pos = npos) const;
+    
+    BOOST_CXX14_CONSTEXPR size_type find_first_of(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find_first_of(charT c, size_type pos = 0) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find_first_of(const charT* s, size_type pos, size_type n) const;
+    BOOST_CXX14_CONSTEXPR size_type find_first_of(const charT* s, size_type pos = 0) const;
+    
+    BOOST_CXX14_CONSTEXPR size_type find_last_of(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find_last_of(charT c, size_type pos = npos) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find_last_of(const charT* s, size_type pos, size_type n) const;
+    BOOST_CXX14_CONSTEXPR size_type find_last_of(const charT* s, size_type pos = npos) const;
+    
+    BOOST_CXX14_CONSTEXPR size_type find_first_not_of(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find_first_not_of(charT c, size_type pos = 0) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find_first_not_of(const charT* s, size_type pos, size_type n) const;
+    BOOST_CXX14_CONSTEXPR size_type find_first_not_of(const charT* s, size_type pos = 0) const;
+    
+    BOOST_CXX14_CONSTEXPR size_type find_last_not_of(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find_last_not_of(charT c, size_type pos = npos) const BOOST_NOEXCEPT;
+    BOOST_CXX14_CONSTEXPR size_type find_last_not_of(const charT* s, size_type pos, size_type n) const;
+    BOOST_CXX14_CONSTEXPR size_type find_last_not_of(const charT* s, size_type pos = npos) const;
+  
+    BOOST_CONSTEXPR bool starts_with(charT c) const ;                 // boost extension
+    BOOST_CONSTEXPR bool starts_with(basic_string_view x) const ;     // boost extension
+    BOOST_CONSTEXPR bool ends_with(charT c) const ;                   // boost extension
+    BOOST_CONSTEXPR bool ends_with(basic_string_view x) const ;       // boost extension
+
+String-like operations:
+
+    template<class Allocator>  // Only present if compiler supports C++11 explicit conversion
+      explicit operator basic_string<charT, traits, Allocator>() const;
+    
+    template<class Allocator = allocator<charT> >  // Default only present if compiler supports
+      basic_string<charT, traits, Allocator>       //   C++11 default template parameters
+        to_string(const Allocator& a = Allocator()) const;
+
+    size_type copy(charT* s, size_type n, size_type pos = 0) const;
+  
+    BOOST_CXX14_CONSTEXPR basic_string_view substr(size_type pos,
+      size_type n=npos) const ; // Create new string_view
+    
+Comparison:
+
+    To be supplied
+
+[endsect]
+
+[/===============]
+[section Compiler Support]
+[/===============]
+
+This Boost implementation only requires a C++03 compliant compiler.
+
+The actual Library Fundamentals specification assumes a C++14 compliant compiler, so a few features are only present if actually supported by the compiler. Boost macros such as BOOST_CONSTEXPR, BOOST_CXX14_CONSTEXPR, and BOOST_NOEXCEPT supply certain features if supported by the compiler. 
+
+[endsect]
+
+[/===============]
+[section History]
+[/===============]
+
+[heading boost 1.53]
+* Introduced, based on Jeffrey Yaskin's [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html N3442:
+string_ref: a non-owning reference to a string]
+
+[heading boost 1.60]
+*  Updated to reflect [@
+http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html#string.view N4480:
+ISO/IEC DTS 19568, Technical Specification - C++ Extensions for Library Fundamentals]   
+
+[endsect]
+
+
+
+

enable_if.html

@@ -1,389 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
-            "http://www.w3.org/TR/REC-html40/loose.dtd">
-<HTML>
-<HEAD><TITLE>enable_if</TITLE>
-
-<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-<META name="GENERATOR" content="Microsoft FrontPage 5.0">
-</HEAD>
-<BODY >
-<!--HEVEA command line is: hevea -nosymb -noiso -pedantic -v enable_if_docs_for_boost.tex -->
-<!--HTMLHEAD-->
-<!--ENDHTML-->
-<!--PREFIX <ARG ></ARG>-->
-<!--CUT DEF section 1 -->
-<BR>
-<BR>
-
-
-<h1>
-<img border="0" src="../../boost.png" align="center" width="277" height="86">enable_if</h1>
-<BR>
-<BR>
-Copyright 2003 Jaakko J&auml;rvi, Jeremiah Willcock, Andrew Lumsdaine.<BR>
-<BR>
-<!--TOC section Introduction-->
-
-<H2><A NAME="htoc1">1</A>&nbsp;&nbsp;Introduction</H2><!--SEC END -->
-
-<A NAME="introduction"></A>
-The <TT>enable_if</TT> family of templates is a set of tools to allow a function template or a class template specialization 
-to include or exclude itself from a set of matching functions or specializations
-based on properties of its template arguments. 
-For example, one can define function templates that
-are only enabled for, and thus only match, an arbitrary set of types
-defined by a traits class. The <TT>enable_if</TT> templates can also be
-applied to enable class template specializations. Applications of
-<TT>enable_if</TT> are discussed in length
-in&nbsp;[<A HREF="#jarvi:03:cuj_arbitrary_overloading"><CITE>1</CITE></A>] and&nbsp;[<A HREF="#jarvi:03:c++typeclasses"><CITE>2</CITE></A>].<BR>
-<BR>
-<!--TOC subsection Synopsis-->
-
-<H3><A NAME="htoc2">1.1</A>&nbsp;&nbsp;Synopsis</H3><!--SEC END -->
-
-<A NAME="sec:synopsis"></A>
-<PRE>namespace boost {
-  template &lt;class Cond, class T = void&gt; struct enable_if;
-  template &lt;class Cond, class T = void&gt; struct disable_if;
-  template &lt;class Cond, class T&gt; struct lazy_enable_if;
-  template &lt;class Cond, class T&gt; struct lazy_disable_if;
-
-  template &lt;bool B, class T = void&gt; struct enable_if_c;
-  template &lt;bool B, class T = void&gt; struct disable_if_c;
-  template &lt;bool B, class T&gt; struct lazy_enable_if_c;
-  template &lt;bool B, class T&gt; struct lazy_disable_if_c;
-}
-</PRE>
-<!--TOC subsection Background-->
-
-<H3><A NAME="htoc3">1.2</A>&nbsp;&nbsp;Background</H3><!--SEC END -->
-
-<A NAME="sec:background"></A>
-Sensible operation of template function overloading in C++ relies
-on the <EM>SFINAE</EM> (substitution-failure-is-not-an-error)
-principle&nbsp;[<A HREF="#vandevoorde2002:templates"><CITE>3</CITE></A>]: if an invalid argument
-or return type is formed during the instantiation of a function
-template, the instantiation is removed from the overload resolution
-set instead of causing a compilation error. The following example, 
-taken from&nbsp;[<A HREF="#jarvi:03:cuj_arbitrary_overloading"><CITE>1</CITE></A>],
-demonstrates why this is important:
-<PRE>int negate(int i) { return -i; }
-
-template &lt;class F&gt;
-typename F::result_type negate(const F&amp; f) { return -f(); }
-
-</PRE>
-Suppose the compiler encounters the call <TT>negate(1)</TT>. The first
-definition is obviously a better match, but the compiler must
-nevertheless consider (and instantiate the prototypes) of both
-definitions to find this out. Instantiating the latter definition with
-<TT>F</TT> as <TT>int</TT> would result in:
-<PRE>int::result_type negate(const int&amp;);
-
-</PRE>
-where the return type is invalid. If this was an error, adding an unrelated function template 
-(that was never called) could break otherwise valid code.
-Due to the SFINAE principle the above example is not, however, erroneous. 
-The latter definition of <TT>negate</TT> is simply removed from the overload resolution set.<BR>
-<BR>
-The <TT>enable_if</TT> templates are tools for controlled creation of the SFINAE
-conditions.<BR>
-<BR>
-<!--TOC section The <TT>enable_if</TT> templates-->
-
-<H2><A NAME="htoc4">2</A>&nbsp;&nbsp;The <TT>enable_if</TT> templates</H2><!--SEC END -->
-
-<A NAME="enable_if"></A>
-The names of the <TT>enable_if</TT> templates have three parts: an optional <TT>lazy_</TT> tag, 
-either <TT>enable_if</TT> or <TT>disable_if</TT>, and an optional <TT>_c</TT> tag.
-All eight combinations of these parts are supported.
-The meaning of the <TT>lazy_</TT> tag is described in Section&nbsp;<A HREF="#sec:enable_if_lazy">3.3</A>.
-The second part of the name indicates whether a true condition argument should 
-enable or disable the current overload.
-The third part of the name indicates whether the condition argument is a <TT>bool</TT> value 
-(<TT>_c</TT> suffix), or a type containing a static <TT>bool</TT> constant named <TT>value</TT> (no suffix).
-The latter version interoperates with Boost.MPL. <BR>
-<BR>
-The definitions of <TT>enable_if_c</TT> and <TT>enable_if</TT> are as follows (we use <TT>enable_if</TT> templates 
-unqualified but they are in the <TT>boost</TT> namespace).
-<PRE>template &lt;bool B, class T = void&gt;
-struct enable_if_c {
-  typedef T type;
-};
-
-template &lt;class T&gt;
-struct enable_if_c&lt;false, T&gt; {};
-
-template &lt;class Cond, class T = void&gt;
-struct enable_if : public enable_if_c&lt;Cond::value, T&gt; {};
-
-</PRE>
-An instantiation of the <TT>enable_if_c</TT> template with the parameter
-<TT>B</TT> as <TT>true</TT> contains a member type <TT>type</TT>, defined
-to be <TT>T</TT>. If <TT>B</TT> is
-<TT>false</TT>, no such member is defined. Thus 
-<TT>enable_if_c&lt;B, T&gt;::type</TT> is either a valid or an invalid type
-expression, depending on the value of <TT>B</TT>.
-When valid, <TT>enable_if_c&lt;B, T&gt;::type</TT> equals <TT>T</TT>.
-The <TT>enable_if_c</TT> template can thus be used for controlling when functions are considered for
-overload resolution and when they are not. 
-For example, the following function is defined for all arithmetic types (according to the
-classification of the <A HREF="../type_traits/index.html">Boost type_traits library</A>):
-<PRE>template &lt;class T&gt;
-typename enable_if_c&lt;boost::is_arithmetic&lt;T&gt;::value, T&gt;::type 
-foo(T t) { return t; }
-
-</PRE>
-The <TT>disable_if_c</TT> template is provided as well, and has the
-same functionality as <TT>enable_if_c</TT> except for the negated condition. The following
-function is enabled for all non-arithmetic types.
-<PRE>template &lt;class T&gt;
-typename disable_if_c&lt;boost::is_arithmetic&lt;T&gt;::value, T&gt;::type 
-bar(T t) { return t; }
-
-</PRE>
-For easier syntax in some cases and interoperation with Boost.MPL we provide versions of
-the <TT>enable_if</TT> templates taking any type with a <TT>bool</TT> member constant named 
-<TT>value</TT> as the condition argument.
-The MPL <TT>bool_</TT>, <TT>and_</TT>, <TT>or_</TT>, and <TT>not_</TT> templates are likely to be 
-useful for creating such types. Also, the traits classes in the Boost.Type_traits library 
-follow this convention. 
-For example, the above example function <TT>foo</TT> can be alternatively written as:
-<PRE>template &lt;class T&gt;
-typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
-foo(T t) { return t; }
-
-</PRE>
-<!--TOC section Using <TT>enable_if</TT>-->
-
-<H2><A NAME="htoc5">3</A>&nbsp;&nbsp;Using <TT>enable_if</TT></H2><!--SEC END -->
-
-<A NAME="sec:using_enable_if"></A>
-The <TT>enable_if</TT> templates are defined in
-<TT>boost/utility/enable_if.hpp</TT>, which is included by <TT>boost/utility.hpp</TT>.<BR>
-<BR>
-The <TT>enable_if</TT> template can be used either as the return type, or as an 
-extra argument. For example, the <TT>foo</TT> function in the previous section could also be written
-as:
-<PRE>template &lt;class T&gt;
-T foo(T t, typename enable_if&lt;boost::is_arithmetic&lt;T&gt; &gt;::type* dummy = 0); 
-
-</PRE>Hence, an extra parameter of type <TT>void*</TT> is added, but it is given 
-a default value to keep the parameter hidden from client code.
-Note that the second template argument was not given to <TT>enable_if</TT>, as the default 
-<TT>void</TT> gives the desired behavior.<BR>
-<BR>
-Whether to write the enabler as an argument or within the return type is
-largely a matter of taste, but for certain functions, only one
-alternative is possible:
-<UL><LI>
-Operators have a fixed number of arguments, thus <TT>enable_if</TT> must be used in the return type.
-<LI>Constructors and destructors do not have a return type; an extra argument is the only option.
-<LI>There does not seem to be a way to specify an enabler for a conversion operator. Converting constructors,
-however, can have enablers as extra default arguments.
-</UL>
-<!--TOC subsection Enabling template class specializations-->
-
-<H3><A NAME="htoc6">3.1</A>&nbsp;&nbsp;Enabling template class specializations</H3><!--SEC END -->
-
-<A NAME="sec:enable_if_classes"></A>
-Class template specializations can be enabled or disabled with <TT>enable_if</TT>.
-One extra template parameter needs to be added for the enabler expressions.
-This parameter has the default value <TT>void</TT>.
-For example:
-<PRE>template &lt;class T, class Enable = void&gt; 
-class A { ... };
-
-template &lt;class T&gt;
-class A&lt;T, typename enable_if&lt;is_integral&lt;T&gt; &gt;::type&gt; { ... };
-
-template &lt;class T&gt;
-class A&lt;T, typename enable_if&lt;is_float&lt;T&gt; &gt;::type&gt; { ... };
-
-</PRE>Instantiating <TT>A</TT> with any integral type matches the first specialization,
-whereas any floating point type matches the second one. All other types
-match the primary template.
-The condition can be any compile-time boolean expression that depends on the 
-template arguments of the class.
-Note that again, the second argument to <TT>enable_if</TT> is not needed; the default (<TT>void</TT>) 
-is the correct value.<BR>
-<BR>
-<!--TOC subsection Overlapping enabler conditions-->
-
-<H3><A NAME="htoc7">3.2</A>&nbsp;&nbsp;Overlapping enabler conditions</H3><!--SEC END -->
-
-<A NAME="sec:overlapping_conditions"></A>
-Once the compiler has examined the enabling conditions and included the
-function into the overload resolution set, normal C++ overload resolution 
-rules are used to select the best matching function.
-In particular, there is no ordering between enabling conditions.
-Function templates with enabling conditions that are not mutually exclusive can 
-lead to ambiguities. For example:
-<PRE>template &lt;class T&gt;
-typename enable_if&lt;boost::is_integral&lt;T&gt;, void&gt;::type 
-foo(T t) {}
-
-template &lt;class T&gt;
-typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, void&gt;::type 
-foo(T t) {}
-
-</PRE>
-All integral types are also arithmetic. Therefore, say, for the call <TT>foo(1)</TT>,
-both conditions are true and both functions are thus in the overload resolution set.
-They are both equally good matches and thus ambiguous.
-Of course, more than one enabling condition can be simultaneously true as long as 
-other arguments disambiguate the functions.<BR>
-<BR>
-The above discussion applies to using <TT>enable_if</TT> in class template
-partial specializations as well.<BR>
-<BR>
-<!--TOC subsection Lazy <TT>enable_if</TT>-->
-
-<H3><A NAME="htoc8">3.3</A>&nbsp;&nbsp;Lazy <TT>enable_if</TT></H3><!--SEC END -->
-
-<A NAME="sec:enable_if_lazy"></A>
-In some cases it is necessary to avoid instantiating part of a
-function signature unless an enabling condition is true. For example:
-<PRE>template &lt;class T, class U&gt; class mult_traits;
-
-template &lt;class T, class U&gt;
-typename enable_if&lt;is_multipliable&lt;T, U&gt;, typename mult_traits&lt;T, U&gt;::type&gt;::type
-operator*(const T&amp; t, const U&amp; u) { ... }
-
-</PRE>Assume the class template <TT>mult_traits</TT> is a traits class defining 
-the resulting type of a multiplication operator. The <TT>is_multipliable</TT> traits
-class specifies for which types to enable the operator. Whenever
-<TT>is_multipliable&lt;A, B&gt;::value</TT> is <TT>true</TT> for some types <TT>A</TT> and <TT>B</TT>,
-then <TT>mult_traits&lt;A, B&gt;::type</TT> is defined.<BR>
-<BR>
-Now, trying to invoke (some other overload) of <TT>operator*</TT> with, say, operand types <TT>C</TT> and <TT>D</TT> 
-for which <TT>is_multipliable&lt;C, D&gt;::value</TT> is <TT>false</TT> 
-and <TT>mult_traits&lt;C, D&gt;::type</TT> is not defined is an error on some compilers. 
-The SFINAE principle is not applied because
-the invalid type occurs as an argument to another template. The <TT>lazy_enable_if</TT> 
-and <TT>lazy_disable_if</TT> templates (and their <TT>_c</TT> versions) can be used in such
-situations:
-<PRE>template&lt;class T, class U&gt;
-typename lazy_enable_if&lt;is_multipliable&lt;T, U&gt;, mult_traits&lt;T, U&gt; &gt;::type
-operator*(const T&amp; t, const U&amp; u) { ... }
-
-</PRE>The second argument of <TT>lazy_enable_if</TT> must be a class type
-that defines a nested type named <TT>type</TT> whenever the first
-parameter (the condition) is true.<BR>
-<BR>
-<!--TOC paragraph Note-->
-
-<H5>Note</H5><!--SEC END -->
-
-Referring to one member type or static constant in a traits class
-causes all of the members (type and static constant) of that
-specialization to be instantiated. Therefore, if your traits classes
-can sometimes contain invalid types, you should use two distinct
-templates for describing the conditions and the type mappings. In the
-above example, <TT>is_multipliable&lt;T, U&gt;::value</TT> defines when
-<TT>mult_traits&lt;T, U&gt;::type</TT> is valid.<BR>
-<BR>
-<!--TOC subsection Compiler workarounds-->
-
-<H3><A NAME="htoc9">3.4</A>&nbsp;&nbsp;Compiler workarounds</H3><!--SEC END -->
-
-<A NAME="sec:workarounds"></A>
-Some compilers flag functions as ambiguous if the only distinguishing factor is a different 
-condition in an enabler (even though the functions could never be ambiguous). For example,
-some compilers (e.g. GCC 3.2) diagnose the following two functions as ambiguous:
-<PRE>template &lt;class T&gt;
-typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
-foo(T t);
-
-template &lt;class T&gt;
-typename disable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
-foo(T t);
-
-</PRE>Two workarounds can be applied:
-<UL><LI>
-Use an extra dummy parameter which disambiguates the functions. Use a default value for
-it to hide the parameter from the caller. For example:
-<PRE>template &lt;int&gt; struct dummy { dummy(int) {} };
-
-template &lt;class T&gt;
-typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
-foo(T t, dummy&lt;0&gt; = 0);
-
-template &lt;class T&gt;
-typename disable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
-foo(T t, dummy&lt;1&gt; = 0);
-</PRE><BR>
-<BR>
-<LI>Define the functions in different namespaces and bring them into a common
-namespace with <TT>using</TT> declarations:
-<PRE>namespace A {
-  template &lt;class T&gt;
-  typename enable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
-  foo(T t);
-}
-
-namespace B {
-  template &lt;class T&gt;
-  typename disable_if&lt;boost::is_arithmetic&lt;T&gt;, T&gt;::type 
-  foo(T t);
-}
-
-using A::foo;
-using B::foo;
-
-</PRE>
-Note that the second workaround above cannot be used for member
-templates. On the other hand, operators do not accept extra arguments,
-which makes the first workaround unusable. As the net effect,
-neither of the workarounds are of assistance for templated operators that
-need to be defined as member functions (assignment and
-subscript operators).
-</UL>
-<!--TOC section Acknowledgements-->
-
-<H2><A NAME="htoc10">4</A>&nbsp;&nbsp;Acknowledgements</H2><!--SEC END -->
-
-We are grateful to Howard Hinnant, Jason Shirk, Paul Mensonides, and Richard
-Smith whose findings have influenced the library.<BR>
-<BR>
-<!--TOC section References-->
-
-<H2>References</H2><!--SEC END -->
-<DL COMPACT=compact><DT><A NAME="jarvi:03:cuj_arbitrary_overloading"><FONT COLOR=purple>[1]</FONT></A><DD>
-Jaakko J&auml;rvi, Jeremiah Willcock, Howard Hinnant, and Andrew Lumsdaine.
-Function overloading based on arbitrary properties of types.
-<EM>C/C++ Users Journal</EM>, 21(6):25--32, June 2003.<BR>
-<BR>
-<DT><A NAME="jarvi:03:c++typeclasses"><FONT COLOR=purple>[2]</FONT></A><DD>
-Jaakko J&auml;rvi, Jeremiah Willcock, and Andrew Lumsdaine.
-Concept-controlled polymorphism.
-In Frank Pfennig and Yannis Smaragdakis, editors, <EM>Generative
- Programming and Component Engineering</EM>, volume 2830 of <EM>LNCS</EM>, pages
- 228--244. Springer Verlag, September 2003.<BR>
-<BR>
-<DT><A NAME="vandevoorde2002:templates"><FONT COLOR=purple>[3]</FONT></A><DD>
-David Vandevoorde and Nicolai&nbsp;M. Josuttis.
-<EM>C++ Templates: The Complete Guide</EM>.
-Addison-Wesley, 2002.</DL>
-
-<hr/>
-   <p>Copyright Jaakko J&auml;rvi, Jeremiah Willcock and Andrew Lumsdaine<BR>
-<EM>{jajarvi|jewillco|lums}@osl.iu.edu</EM><BR>
-Indiana University<BR>
-Open Systems Lab<br/>
-Use, modification and distribution are subject to the
-Boost Software License, Version 1.0.
-(See accompanying file LICENSE_1_0.txt
-or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">
-   http://www.boost.org/LICENSE_1_0.txt
-</a>).
-</p>
-<!--HTMLFOOT-->
-<!--ENDHTML-->
-<!--FOOTER-->
-<HR SIZE=2>
-<BLOCKQUOTE><EM>This document was translated from L<sup>A</sup>T<sub>E</sub>X by
-</EM><A HREF="http://pauillac.inria.fr/~maranget/hevea/index.html"><EM>H<FONT SIZE=2><sup>E</sup></FONT>V<FONT SIZE=2><sup>E</sup></FONT>A</EM></A><EM>.
-</EM></BLOCKQUOTE>
-</BODY>
-</HTML>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<meta http-equiv=refresh content="0; URL=../core/doc/html/core/enable_if.html">
+<title>Automatic redirection</title>
+</head>
+<body>
+Automatic redirection failed, please go to
+<a href="../core/doc/html/core/enable_if.html">enable_if.html</a>.&nbsp;<hr>
+<p><EFBFBD> Copyright Beman Dawes, 2001</p>
+<p>Distributed under the Boost Software License, Version 1.0. (See accompanying 
+file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or copy 
+at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</p>
+</body>
+</html>

enable_if/test/Jamfile.v2

@@ -1,23 +0,0 @@
-# Copyright David Abrahams 2003.
-# Distributed under the Boost Software License, Version 1.0. 
-# (See accompanying file LICENSE_1_0.txt or copy at 
-# http://www.boost.org/LICENSE_1_0.txt)
-
-# For more information, see http://www.boost.org/
-
-project
-    : requirements <library>/boost/test//boost_test_exec_monitor
-    ;
-
-test-suite utility/enable_if
-        :
-        [ run constructors.cpp ]
-        [ run dummy_arg_disambiguation.cpp ]
-        [ run lazy.cpp ]
-        [ run lazy_test.cpp ]
-        [ run member_templates.cpp ]
-        [ run namespace_disambiguation.cpp ]
-        [ run no_disambiguation.cpp ]
-        [ run partial_specializations.cpp ]
-    ;
-

enable_if/test/constructors.cpp

@@ -1,62 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-#include <boost/test/minimal.hpp>
-
-#include <boost/utility/enable_if.hpp>
-#include <boost/type_traits.hpp>
-
-using boost::enable_if;
-using boost::disable_if;
-using boost::is_arithmetic;
-
-struct container {
-  bool my_value;
-
-  template <class T>
-  container(const T&, const typename enable_if<is_arithmetic<T>, T>::type * = 0):
-  my_value(true) {}
-
-  template <class T>
-  container(const T&, const typename disable_if<is_arithmetic<T>, T>::type * = 0):
-  my_value(false) {}
-};
-
-// example from Howard Hinnant (tests enable_if template members of a templated class)
-template <class charT>
-struct xstring
-{
-  template <class It>
-  xstring(It begin, It end, typename 
-          disable_if<is_arithmetic<It> >::type* = 0)
-    : data(end-begin) {}
-  
-  int data;
-};
-
-
-int test_main(int, char*[])
-{
- 
-  BOOST_CHECK(container(1).my_value);
-  BOOST_CHECK(container(1.0).my_value);
-
-  BOOST_CHECK(!container("1").my_value);  
-  BOOST_CHECK(!container(static_cast<void*>(0)).my_value);  
-
-  char sa[] = "123456";
-  BOOST_CHECK(xstring<char>(sa, sa+6).data == 6);
-
-
-  return 0;
-}
-

enable_if/test/dummy_arg_disambiguation.cpp

@@ -1,46 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-#include <boost/test/minimal.hpp>
-
-#include <boost/utility/enable_if.hpp>
-#include <boost/type_traits/is_arithmetic.hpp>
-
-using boost::enable_if;
-using boost::disable_if;
-using boost::is_arithmetic;
-
-template <int N> struct dummy {
-  dummy(int) {};
-};
-
-template<class T>
-typename enable_if<is_arithmetic<T>, bool>::type
-arithmetic_object(T t, dummy<0> = 0) { return true; }
-
-template<class T>
-typename disable_if<is_arithmetic<T>, bool>::type
-arithmetic_object(T t, dummy<1> = 0) { return false; }
-
-
-int test_main(int, char*[])
-{
- 
-  BOOST_CHECK(arithmetic_object(1));
-  BOOST_CHECK(arithmetic_object(1.0));
-
-  BOOST_CHECK(!arithmetic_object("1"));  
-  BOOST_CHECK(!arithmetic_object(static_cast<void*>(0)));  
-
-  return 0;
-}
-

enable_if/test/lazy.cpp

@@ -1,82 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-#include <boost/test/minimal.hpp>
-
-#include <boost/utility/enable_if.hpp>
-#include <boost/type_traits/is_same.hpp>
-
-using boost::enable_if_c;
-using boost::lazy_enable_if_c;
-
-// This class provides a reduced example of a traits class for
-// computing the result of multiplying two types.  The member typedef
-// 'type' in this traits class defines the return type of this
-// operator.  The return type member is invalid unless both arguments
-// for mult_traits are values that mult_traits expects (ints in this
-// case).  This kind of situation may arise if a traits class only
-// makes sense for some set of types, not all C++ types.
-
-template <class T> struct is_int {
-  BOOST_STATIC_CONSTANT(bool, value = (boost::is_same<T, int>::value));
-};
-
-template <class T, class U>
-struct mult_traits {
-  typedef typename T::does_not_exist type;
-};
-
-template <>
-struct mult_traits<int, int> {
-  typedef int type;
-};
-
-
-// Next, a forwarding function mult() is defined.  It is enabled only
-// when both arguments are of type int.  The first version, using
-// non-lazy enable_if_c does not work.
-
-#if 0
-template <class T, class U>
-typename enable_if_c<
-  is_int<T>::value && is_int<U>::value,
-  typename mult_traits<T, U>::type
->::type
-mult(const T& x, const U& y) {return x * y;}
-#endif
-
-// A correct version uses lazy_enable_if_c.
-// This template removes compiler errors from invalid code used as an
-// argument to enable_if_c.
-
-#if 1
-template <class T, class U>
-typename lazy_enable_if_c<
-  is_int<T>::value & is_int<U>::value,
-  mult_traits<T, U> 
->::type
-mult(const T& x, const U& y) {return x * y;}
-#endif
-
-double mult(int i, double d) { return (double)i * d; }
-
-int test_main(int, char*[])
-{
-
-
-  BOOST_CHECK(mult(1, 2) == 2);
-
-  BOOST_CHECK(mult(1, 3.0) == 3.0);
-
-  return 0;
-}
-

enable_if/test/lazy_test.cpp

@@ -1,100 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-// Testing all variations of lazy_enable_if.
-
-#include <boost/test/minimal.hpp>
-#include <boost/mpl/not.hpp>
-
-#include <boost/utility/enable_if.hpp>
-#include <boost/type_traits/is_same.hpp>
-
-using boost::lazy_enable_if;
-using boost::lazy_disable_if;
-
-using boost::lazy_enable_if_c;
-using boost::lazy_disable_if_c;
-
-
-template <class T>
-struct is_int_or_double {
-  BOOST_STATIC_CONSTANT(bool, 
-    value = (boost::is_same<T, int>::value || 
-             boost::is_same<T, double>::value));
-};
-
-template <class T>
-struct some_traits {
-  typedef typename T::does_not_exist type;
-};
-
-template <>
-struct some_traits<int> {
-  typedef bool type;
-};
-
-template <>
-struct some_traits<double> {
-  typedef bool type;
-};
-
-template <class T>
-struct make_bool {
-  typedef bool type;
-};
-
-template <>
-struct make_bool<int> {};
-
-template <>
-struct make_bool<double> {};
-
-namespace A {
-
-  template<class T>
-  typename lazy_enable_if<is_int_or_double<T>, some_traits<T> >::type
-  foo(T t) { return true; }
-
-  template<class T>
-  typename lazy_enable_if_c<is_int_or_double<T>::value, some_traits<T> >::type
-  foo2(T t) { return true; }
-}
-
-namespace B {
-  template<class T>
-  typename lazy_disable_if<is_int_or_double<T>, make_bool<T> >::type
-  foo(T t) { return false; }
-
-  template<class T>
-  typename lazy_disable_if_c<is_int_or_double<T>::value, make_bool<T> >::type
-  foo2(T t) { return false; }
-}
-
-int test_main(int, char*[])
-{
-  using namespace A;
-  using namespace B;
-  BOOST_CHECK(foo(1));
-  BOOST_CHECK(foo(1.0));
-
-  BOOST_CHECK(!foo("1"));  
-  BOOST_CHECK(!foo(static_cast<void*>(0)));  
-
-  BOOST_CHECK(foo2(1));
-  BOOST_CHECK(foo2(1.0));
-
-  BOOST_CHECK(!foo2("1"));  
-  BOOST_CHECK(!foo2(static_cast<void*>(0)));  
-
-  return 0;
-}
-

enable_if/test/member_templates.cpp

@@ -1,43 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-#include <boost/test/minimal.hpp>
-
-#include <boost/utility/enable_if.hpp>
-#include <boost/type_traits/is_arithmetic.hpp>
-
-using boost::enable_if;
-using boost::disable_if;
-using boost::is_arithmetic;
-
-struct container {
-  template <class T>
-  typename enable_if<is_arithmetic<T>, bool>::type
-  arithmetic_object(const T&, const int* /* disambiguate */ = 0) {return true;}
-
-  template <class T>
-  typename disable_if<is_arithmetic<T>, bool>::type
-  arithmetic_object(const T&) {return false;}
-};
-
-int test_main(int, char*[])
-{
- 
-  BOOST_CHECK(container().arithmetic_object(1));
-  BOOST_CHECK(container().arithmetic_object(1.0));
-
-  BOOST_CHECK(!container().arithmetic_object("1"));  
-  BOOST_CHECK(!container().arithmetic_object(static_cast<void*>(0)));  
-
-  return 0;
-}
-

enable_if/test/namespace_disambiguation.cpp

@@ -1,47 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-#include <boost/test/minimal.hpp>
-#include <boost/mpl/not.hpp>
-
-#include <boost/utility/enable_if.hpp>
-#include <boost/type_traits/is_arithmetic.hpp>
-
-using boost::enable_if;
-using boost::mpl::not_;
-using boost::is_arithmetic;
-
-namespace A {
-  template<class T>
-  typename enable_if<is_arithmetic<T>, bool>::type
-  arithmetic_object(T t) { return true; }
-}
-
-namespace B {
-  template<class T>
-  typename enable_if<not_<is_arithmetic<T> >, bool>::type
-  arithmetic_object(T t) { return false; }
-}
-
-int test_main(int, char*[])
-{
-  using namespace A;
-  using namespace B;
-  BOOST_CHECK(arithmetic_object(1));
-  BOOST_CHECK(arithmetic_object(1.0));
-
-  BOOST_CHECK(!arithmetic_object("1"));  
-  BOOST_CHECK(!arithmetic_object(static_cast<void*>(0)));  
-
-  return 0;
-}
-

enable_if/test/no_disambiguation.cpp

@@ -1,43 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-#include <boost/test/minimal.hpp>
-#include <boost/mpl/not.hpp>
-
-#include <boost/utility/enable_if.hpp>
-#include <boost/type_traits/is_arithmetic.hpp>
-
-using boost::mpl::not_;
-using boost::enable_if;
-using boost::is_arithmetic;
-
-template<class T>
-typename enable_if<is_arithmetic<T>, bool>::type
-arithmetic_object(T t) { return true; }
-
-template<class T>
-typename enable_if<not_<is_arithmetic<T> >, bool>::type
-arithmetic_object(T t) { return false; }
-
-
-int test_main(int, char*[])
-{
- 
-  BOOST_CHECK(arithmetic_object(1));
-  BOOST_CHECK(arithmetic_object(1.0));
-
-  BOOST_CHECK(!arithmetic_object("1"));  
-  BOOST_CHECK(!arithmetic_object(static_cast<void*>(0)));  
-
-  return 0;
-}
-

enable_if/test/partial_specializations.cpp

@@ -1,67 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-#include <boost/test/minimal.hpp>
-
-#include <boost/utility/enable_if.hpp>
-#include <boost/type_traits/is_arithmetic.hpp>
-
-using boost::enable_if_c;
-using boost::disable_if_c;
-using boost::enable_if;
-using boost::disable_if;
-using boost::is_arithmetic;
-
-template <class T, class Enable = void>
-struct tester;
-
-template <class T>
-struct tester<T, typename enable_if_c<is_arithmetic<T>::value>::type> {
-  BOOST_STATIC_CONSTANT(bool, value = true);
-};
-
-template <class T>
-struct tester<T, typename disable_if_c<is_arithmetic<T>::value>::type> {
-  BOOST_STATIC_CONSTANT(bool, value = false);
-};
-
-template <class T, class Enable = void>
-struct tester2;
-
-template <class T>
-struct tester2<T, typename enable_if<is_arithmetic<T> >::type> {
-  BOOST_STATIC_CONSTANT(bool, value = true);
-};
-
-template <class T>
-struct tester2<T, typename disable_if<is_arithmetic<T> >::type> {
-  BOOST_STATIC_CONSTANT(bool, value = false);
-};
-
-int test_main(int, char*[])
-{
- 
-  BOOST_CHECK(tester<int>::value);
-  BOOST_CHECK(tester<double>::value);
-
-  BOOST_CHECK(!tester<char*>::value);
-  BOOST_CHECK(!tester<void*>::value);
-
-  BOOST_CHECK(tester2<int>::value);
-  BOOST_CHECK(tester2<double>::value);
-
-  BOOST_CHECK(!tester2<char*>::value);
-  BOOST_CHECK(!tester2<void*>::value);
-
-  return 0;
-}
-

generator_iterator_test.cpp

@@ -0,0 +1,63 @@
+//
+// Copyright 2014 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+
+#include <boost/generator_iterator.hpp>
+#include <boost/detail/lightweight_test.hpp>
+#include <algorithm>
+
+class X
+{
+private:
+
+    int v;
+
+public:
+
+    typedef int result_type;
+
+    X(): v( 0 )
+    {
+    }
+
+    int operator()()
+    {
+        return ++v;
+    }
+};
+
+template<class InputIterator, class Size, class OutputIterator> OutputIterator copy_n( InputIterator first, Size n, OutputIterator result )
+{
+    while( n-- > 0 )
+    {
+        *result++ = *first++;
+    }
+
+    return result;
+}
+
+void copy_test()
+{
+    X x;
+    boost::generator_iterator<X> in( &x );
+
+    int const N = 4;
+    int v[ N ] = { 0 };
+
+    ::copy_n( in, 4, v );
+
+    BOOST_TEST_EQ( v[0], 1 );
+    BOOST_TEST_EQ( v[1], 2 );
+    BOOST_TEST_EQ( v[2], 3 );
+    BOOST_TEST_EQ( v[3], 4 );
+}
+
+int main()
+{
+    copy_test();
+    return boost::report_errors();
+}

identity_type/doc/Jamfile.v2

@@ -0,0 +1,44 @@
+
+# Copyright (C) 2009-2012 Lorenzo Caminiti
+# Distributed under the Boost Software License, Version 1.0
+# (see accompanying file LICENSE_1_0.txt or a copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+# Home at http://www.boost.org/libs/utility/identity_type
+
+import quickbook ;
+using boostbook ;
+
+doxygen reference : ../../../../boost/utility/identity_type.hpp
+    :   <reftitle>"Reference"
+        <doxygen:param>PREDEFINED="DOXYGEN"
+        <doxygen:param>QUIET=YES
+        <doxygen:param>WARN_IF_UNDOCUMENTED=NO
+        <doxygen:param>HIDE_UNDOC_MEMBERS=YES
+        <doxygen:param>HIDE_UNDOC_CLASSES=YES
+        <doxygen:param>ALIASES=" Params=\"<b>Parameters:</b> <table border="0">\" Param{2}=\"<tr><td><b><tt>\\1</tt></b></td><td>\\2</td></tr>\" EndParams=\"</table>\" Returns=\"<b>Returns:</b>\" Note=\"<b>Note:</b>\" Warning=\"<b>Warning:</b>\" See=\"<b>See:</b>\" RefSect{2}=\"\\xmlonly<link linkend='boost_utility_identitytype.\\1'>\\2</link>\\endxmlonly\" RefClass{1}=\"\\xmlonly<computeroutput><classname alt='\\1'>\\1</classname></computeroutput>\\endxmlonly\" RefFunc{1}=\"\\xmlonly<computeroutput><functionname alt='\\1'>\\1</functionname></computeroutput>\\endxmlonly\" RefMacro{1}=\"\\xmlonly<computeroutput><macroname alt='\\1'>\\1</macroname></computeroutput>\\endxmlonly\" "
+    ;
+
+# This target must be called "index" so to generate "index.html" file.
+xml index : identity_type.qbk : <dependency>reference ;
+
+boostbook doc : index
+    :   <location>html
+        <format>onehtml
+        <xsl:param>toc.section.depth=0
+        <xsl:param>html.stylesheet=../../../../../doc/src/boostbook.css
+        <xsl:param>boost.root=../../../../..
+    ;
+
+#
+# This is very imperfect - it results in both html and pdf docs being built,
+# for some reason I can't get the "onehtml" format specified above to play nice
+# with the usual incantations for mixed pdf/html builds. JM 06/2012.
+#
+boostbook pdf_doc : index
+    :
+       <format>pdf
+       <format>html:<build>no
+    ;
+
+install pdf_doc_install : pdf_doc : <location>. <name>identity_type.pdf <install-type>PDF ;
+explicit pdf_doc_install ;

identity_type/doc/html/index.html

@@ -0,0 +1,252 @@
+<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Boost.Utility/IdentityType 1.0.0</title><link rel="stylesheet" type="text/css" href="../../../../../doc/src/boostbook.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" title="Boost.Utility/IdentityType 1.0.0"><div class="titlepage"><div><div><h2 class="title"><a name="boost_utility_identitytype"></a>Boost.Utility/IdentityType 1.0.0</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Lorenzo</span> <span class="surname">Caminiti <code class="email">&lt;<a class="email" href="mailto:lorcaminiti@gmail.com">lorcaminiti@gmail.com</a>&gt;</code></span></h3></div></div><div><p class="copyright">Copyright © 2009-2012 Lorenzo
+      Caminiti</p></div><div><div class="legalnotice" title="Legal Notice"><a name="boost_utility_identitytype.legal"></a><p>
+        Distributed under the Boost Software License, Version 1.0 (see accompanying
+        file LICENSE_1_0.txt or a copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p></div></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#boost_utility_identitytype.motivation">Motivation</a></span></dt><dt><span class="section"><a href="#boost_utility_identitytype.solution">Solution</a></span></dt><dt><span class="section"><a href="#boost_utility_identitytype.templates">Templates</a></span></dt><dt><span class="section"><a href="#boost_utility_identitytype.abstract_types">Abstract Types</a></span></dt><dt><span class="section"><a href="#boost_utility_identitytype.annex__usage">Annex: Usage</a></span></dt><dt><span class="section"><a href="#boost_utility_identitytype.annex__implementation">Annex:
+    Implementation</a></span></dt><dt><span class="section"><a href="#reference">Reference</a></span></dt></dl></div><p>
+    This library allows to wrap types within round parenthesis so they can always
+    be passed as macro parameters.
+  </p><div class="section boost_utility_identitytype_motivation" title="Motivation"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="boost_utility_identitytype.motivation"></a><a class="link" href="#boost_utility_identitytype.motivation" title="Motivation">Motivation</a></h2></div></div></div><p>
+      Consider the following macro which declares a variable named <code class="computeroutput"><span class="identifier">var</span></code><code class="literal"><span class="emphasis"><em>n</em></span></code>
+      with the specified <code class="literal"><span class="emphasis"><em>type</em></span></code> (see also
+      <a href="../../test/var_error.cpp" target="_top"><code class="literal">var_error.cpp</code></a>):
+    </p><p>
+</p><pre class="programlisting"><span class="preprocessor">#define</span> <span class="identifier">VAR</span><span class="special">(</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">n</span><span class="special">)</span> <span class="identifier">type</span> <span class="identifier">var</span> <span class="error">#</span><span class="preprocessor"># n</span>
+
+<span class="identifier">VAR</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="number">1</span><span class="special">);</span>                    <span class="comment">// OK.</span>
+<span class="identifier">VAR</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;,</span> <span class="number">2</span><span class="special">);</span>    <span class="comment">// Error.</span>
+</pre><p>
+    </p><p>
+      The first macro invocation works correctly declaring a variable named <code class="computeroutput"><span class="identifier">var1</span></code> of type <code class="computeroutput"><span class="keyword">int</span></code>.
+      However, the second macro invocation fails generating a preprocessor error
+      similar to the following:
+    </p><pre class="programlisting">error: macro "VAR" passed 3 arguments, but takes just 2
+</pre><p>
+      That is because the <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span></code> type passed as the first macro parameter
+      contains a comma <code class="computeroutput"><span class="special">,</span></code> not wrapped
+      by round parenthesis <code class="computeroutput"><span class="special">()</span></code>. The preprocessor
+      interprets that unwrapped comma as a separation between macro parameters concluding
+      that a total of three (and not two) parameters are passed to the macro in the
+      following order:
+    </p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
+          <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span></code>
+        </li><li class="listitem">
+          <code class="computeroutput"><span class="keyword">char</span><span class="special">&gt;</span></code>
+        </li><li class="listitem">
+          <code class="computeroutput"><span class="number">2</span></code>
+        </li></ol></div><p>
+      Note that, differently from the compiler, the preprocessor only recognizes
+      round parenthesis <code class="computeroutput"><span class="special">()</span></code>. Angular
+      <code class="computeroutput"><span class="special">&lt;&gt;</span></code> and squared <code class="computeroutput"><span class="special">[]</span></code> parenthesis are not recognized by the preprocessor
+      when parsing macro parameters.
+    </p></div><div class="section boost_utility_identitytype_solution" title="Solution"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="boost_utility_identitytype.solution"></a><a class="link" href="#boost_utility_identitytype.solution" title="Solution">Solution</a></h2></div></div></div><p>
+      In some cases, it might be possible to workaround this issue by avoiding to
+      pass the type expression to the macro all together. For example, in the case
+      above a <code class="computeroutput"><span class="keyword">typedef</span></code> could have been
+      used to specify the type expression with the commas outside the macro (see
+      also <a href="../../test/var.cpp" target="_top"><code class="literal">var.cpp</code></a>):
+    </p><p>
+</p><pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">map_type</span><span class="special">;</span>
+<span class="identifier">VAR</span><span class="special">(</span><span class="identifier">map_type</span><span class="special">,</span> <span class="number">3</span><span class="special">);</span> <span class="comment">// OK.</span>
+</pre><p>
+    </p><p>
+      When this is neither possible nor desired (e.g., see the function template
+      <code class="computeroutput"><span class="identifier">f</span></code> in the section below), this
+      library header <code class="computeroutput"><a class="link" href="#header.boost.utility.identity_type_hpp" title="Header &lt;boost/utility/identity_type.hpp&gt;">boost/utility/identity_type.hpp</a></code>
+      defines a macro <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code>
+      which can be used to workaround the issue while keeping the type expression
+      as one of the macro parameters (see also <a href="../../test/var.cpp" target="_top"><code class="literal">var.cpp</code></a>).
+    </p><p>
+</p><pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">utility</span><span class="special">/</span><span class="identifier">identity_type</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
+
+<span class="identifier">VAR</span><span class="special">(</span><span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">((</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;)),</span> <span class="number">4</span><span class="special">);</span> <span class="comment">// OK.</span>
+</pre><p>
+    </p><p>
+      The <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code> macro
+      expands to an expression that evaluates (at compile-time) to the specified
+      type. The specified type is never split into multiple macro parameters because
+      it is always wrapped by a set of extra round parenthesis <code class="computeroutput"><span class="special">()</span></code>.
+      In fact, a total of two sets of round parenthesis must be used: The parenthesis
+      to invoke the macro <code class="computeroutput"><span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">(...)</span></code> plus the inner parenthesis to wrap the
+      type passed to the macro <code class="computeroutput"><span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">((...))</span></code>.
+    </p><p>
+      This macro works on any <a href="http://www.open-std.org/JTC1/SC22/WG21/docs/standards" target="_top">C++03</a>
+      compiler (and it does not use <a href="http://en.wikipedia.org/wiki/Variadic_macro" target="_top">variadic
+      macros</a>). <sup>[<a name="boost_utility_identitytype.solution.f0" href="#ftn.boost_utility_identitytype.solution.f0" class="footnote">1</a>]</sup> The authors originally developed and tested this library using
+      GNU Compiler Collection (GCC) C++ 4.5.3 (with and without C++11 features enabled
+      <code class="computeroutput"><span class="special">-</span><span class="identifier">std</span><span class="special">=</span><span class="identifier">c</span><span class="special">++</span><span class="number">0</span><span class="identifier">x</span></code>) on Cygwin
+      and Miscrosoft Visual C++ (MSVC) 8.0 on Windows 7. See the library <a href="http://www.boost.org/development/tests/release/developer/utility-identity_type.html" target="_top">regressions
+      test results</a> for more information on supported compilers and platforms.
+    </p></div><div class="section boost_utility_identitytype_templates" title="Templates"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="boost_utility_identitytype.templates"></a><a class="link" href="#boost_utility_identitytype.templates" title="Templates">Templates</a></h2></div></div></div><p>
+      This macro must be prefixed by <code class="computeroutput"><span class="keyword">typename</span></code>
+      when used within templates. For example, let's program a macro that declares
+      a function parameter named <code class="computeroutput"><span class="identifier">arg</span></code><code class="literal"><span class="emphasis"><em>n</em></span></code>
+      with the specified <code class="literal"><span class="emphasis"><em>type</em></span></code> (see also
+      <a href="../../test/template.cpp" target="_top"><code class="literal">template.cpp</code></a>):
+    </p><p>
+</p><pre class="programlisting"><span class="preprocessor">#define</span> <span class="identifier">ARG</span><span class="special">(</span><span class="identifier">type</span><span class="special">,</span> <span class="identifier">n</span><span class="special">)</span> <span class="identifier">type</span> <span class="identifier">arg</span> <span class="error">#</span><span class="preprocessor"># n</span>
+
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+<span class="keyword">void</span> <span class="identifier">f</span><span class="special">(</span> <span class="comment">// Prefix macro with `typename` in templates.</span>
+    <span class="identifier">ARG</span><span class="special">(</span><span class="keyword">typename</span> <span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">((</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;)),</span> <span class="number">1</span><span class="special">)</span>
+<span class="special">)</span> <span class="special">{</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">arg1</span><span class="special">[</span><span class="number">0</span><span class="special">]</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
+<span class="special">}</span>
+</pre><p>
+    </p><p>
+</p><pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">a</span><span class="special">;</span>
+<span class="identifier">a</span><span class="special">[</span><span class="number">0</span><span class="special">]</span> <span class="special">=</span> <span class="char">'a'</span><span class="special">;</span>
+
+<span class="identifier">f</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;(</span><span class="identifier">a</span><span class="special">);</span> <span class="comment">// OK...</span>
+<span class="comment">// f(a);    // ... but error.</span>
+</pre><p>
+    </p><p>
+      However, note that the template parameter <code class="computeroutput"><span class="keyword">char</span></code>
+      must be manually specified when invoking the function as in <code class="computeroutput"><span class="identifier">f</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;(</span><span class="identifier">a</span><span class="special">)</span></code>. In fact,
+      when the <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code>
+      macro is used to wrap a function template parameter, the template parameter
+      can no longer be automatically deduced by the compiler form the function call
+      as <code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">a</span><span class="special">)</span></code> would
+      have done. <sup>[<a name="boost_utility_identitytype.templates.f0" href="#ftn.boost_utility_identitytype.templates.f0" class="footnote">2</a>]</sup> (This limitation does not apply to class templates because class
+      template parameters must always be explicitly specified.) In other words, without
+      using the <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code>
+      macro, C++ would normally be able to automatically deduce the function template
+      parameter as shown below:
+    </p><p>
+</p><pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
+<span class="keyword">void</span> <span class="identifier">g</span><span class="special">(</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="identifier">arg1</span>
+<span class="special">)</span> <span class="special">{</span>
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">arg1</span><span class="special">[</span><span class="number">0</span><span class="special">]</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
+<span class="special">}</span>
+</pre><p>
+    </p><p>
+</p><pre class="programlisting"><span class="identifier">g</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;(</span><span class="identifier">a</span><span class="special">);</span> <span class="comment">// OK...</span>
+<span class="identifier">g</span><span class="special">(</span><span class="identifier">a</span><span class="special">);</span>       <span class="comment">// ... and also OK.</span>
+</pre><p>
+    </p></div><div class="section boost_utility_identitytype_abstract_types" title="Abstract Types"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="boost_utility_identitytype.abstract_types"></a><a class="link" href="#boost_utility_identitytype.abstract_types" title="Abstract Types">Abstract Types</a></h2></div></div></div><p>
+      On some compilers (e.g., GCC), using this macro on abstract types (i.e., classes
+      with one or more pure virtual functions) generates a compiler error. This can
+      be avoided by manipulating the type adding and removing a reference to it.
+    </p><p>
+      Let's program a macro that performs a static assertion on a <a href="http://en.wikipedia.org/wiki/Template_metaprogramming" target="_top">Template
+      Meta-Programming</a> (TMP) meta-function (similarly to Boost.MPL <a href="http://www.boost.org/doc/libs/1_36_0/libs/mpl/doc/refmanual/assert.html" target="_top"><code class="computeroutput"><span class="identifier">BOOST_MPL_ASSERT</span></code></a>). The <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code> macro can be used
+      to pass a meta-function with multiple template parameters to the assert macro
+      (so to handle the commas separating the template parameters). In this case,
+      if the meta-function is an abstract type, it needs to be manipulated adding
+      and removing a reference to it (see also <a href="../../test/abstract.cpp" target="_top"><code class="literal">abstract.cpp</code></a>):
+    </p><p>
+</p><pre class="programlisting"><span class="preprocessor">#define</span> <span class="identifier">TMP_ASSERT</span><span class="special">(</span><span class="identifier">metafunction</span><span class="special">)</span> <span class="special">\</span>
+    <span class="identifier">BOOST_STATIC_ASSERT</span><span class="special">(</span><span class="identifier">metafunction</span><span class="special">::</span><span class="identifier">value</span><span class="special">)</span>
+
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">bool</span> <span class="identifier">b</span><span class="special">&gt;</span>
+<span class="keyword">struct</span> <span class="identifier">abstract</span> <span class="special">{</span>
+    <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">value</span> <span class="special">=</span> <span class="identifier">b</span><span class="special">;</span>
+    <span class="keyword">virtual</span> <span class="keyword">void</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>     <span class="comment">// Pure virtual function.</span>
+<span class="special">};</span>
+
+<span class="identifier">TMP_ASSERT</span><span class="special">(</span>
+    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">remove_reference</span><span class="special">&lt;</span>            <span class="comment">// Add and remove</span>
+        <span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">((</span>           <span class="comment">// reference for</span>
+            <span class="identifier">boost</span><span class="special">::</span><span class="identifier">add_reference</span><span class="special">&lt;</span>       <span class="comment">// abstract type.</span>
+                <span class="identifier">abstract</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">true</span><span class="special">&gt;</span>
+            <span class="special">&gt;::</span><span class="identifier">type</span>
+        <span class="special">))</span>
+    <span class="special">&gt;::</span><span class="identifier">type</span>
+<span class="special">);</span>
+</pre><p>
+    </p></div><div class="section boost_utility_identitytype_annex__usage" title="Annex: Usage"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="boost_utility_identitytype.annex__usage"></a><a class="link" href="#boost_utility_identitytype.annex__usage" title="Annex: Usage">Annex: Usage</a></h2></div></div></div><p>
+      The <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code> macro
+      can be used either when calling a user-defined macro (as shown by the examples
+      so far), or internally when implementing a user-defined macro (as shown below).
+      When <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code> is
+      used in the implementation of the user-defined macro, the caller of the user
+      macro will have to specify the extra parenthesis (see also <a href="../../test/paren.cpp" target="_top"><code class="literal">paren.cpp</code></a>):
+    </p><p>
+</p><pre class="programlisting"><span class="preprocessor">#define</span> <span class="identifier">TMP_ASSERT_PAREN</span><span class="special">(</span><span class="identifier">parenthesized_metafunction</span><span class="special">)</span> <span class="special">\</span>
+    <span class="comment">/* use `BOOST_IDENTITY_TYPE` in macro definition instead of invocation */</span> <span class="special">\</span>
+    <span class="identifier">BOOST_STATIC_ASSERT</span><span class="special">(</span><span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">(</span><span class="identifier">parenthesized_metafunction</span><span class="special">)::</span><span class="identifier">value</span><span class="special">)</span>
+
+<span class="preprocessor">#define</span> <span class="identifier">TMP_ASSERT</span><span class="special">(</span><span class="identifier">metafunction</span><span class="special">)</span> <span class="special">\</span>
+    <span class="identifier">BOOST_STATIC_ASSERT</span><span class="special">(</span><span class="identifier">metafunction</span><span class="special">::</span><span class="identifier">value</span><span class="special">)</span>
+
+<span class="comment">// Specify only extra parenthesis `((...))`.</span>
+<span class="identifier">TMP_ASSERT_PAREN</span><span class="special">((</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_const</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&gt;));</span>
+
+<span class="comment">// Specify both the extra parenthesis `((...))` and `BOOST_IDENTITY_TYPE` macro.</span>
+<span class="identifier">TMP_ASSERT</span><span class="special">(</span><span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">((</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_const</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&gt;)));</span>
+</pre><p>
+    </p><p>
+      However, note that the caller will <span class="emphasis"><em>always</em></span> have to specify
+      the extra parenthesis even when the macro parameters contain no comma:
+    </p><p>
+</p><pre class="programlisting"><span class="identifier">TMP_ASSERT_PAREN</span><span class="special">((</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_const</span><span class="special">&lt;</span><span class="keyword">int</span> <span class="keyword">const</span><span class="special">&gt;));</span> <span class="comment">// Always extra `((...))`.</span>
+
+<span class="identifier">TMP_ASSERT</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_const</span><span class="special">&lt;</span><span class="keyword">int</span> <span class="keyword">const</span><span class="special">&gt;);</span> <span class="comment">// No extra `((...))` and no macro.</span>
+</pre><p>
+    </p><p>
+      In some cases, using <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code>
+      in the implementation of the user-defined macro might provide the best syntax
+      for the caller. For example, this is the case for <code class="computeroutput"><span class="identifier">BOOST_MPL_ASSERT</span></code>
+      because the majority of template meta-programming expressions contain unwrapped
+      commas so it is less confusing for the user to always specify the extra parenthesis
+      <code class="computeroutput"><span class="special">((...))</span></code> instead of using <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code>:
+    </p><pre class="programlisting"><span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span> <span class="comment">// Natural syntax.</span>
+    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">and_</span><span class="special">&lt;</span>
+          <span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_const</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span>
+        <span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span>
+    <span class="special">&gt;</span>
+<span class="special">));</span>
+</pre><p>
+      However, in other situations it might be preferable to not require the extra
+      parenthesis in the common cases and handle commas as special cases using <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code>. For example, this
+      is the case for <a href="http://www.boost.org/libs/local_function" target="_top"><code class="computeroutput"><span class="identifier">BOOST_LOCAL_FUNCTION</span></code></a> for which always
+      requiring the extra parenthesis <code class="computeroutput"><span class="special">((...))</span></code>
+      around the types would lead to an unnatural syntax for the local function signature:
+    </p><pre class="programlisting"><span class="keyword">int</span> <span class="identifier">BOOST_LOCAL_FUNCTION</span><span class="special">(</span> <span class="special">((</span><span class="keyword">int</span><span class="special">&amp;))</span> <span class="identifier">x</span><span class="special">,</span> <span class="special">((</span><span class="keyword">int</span><span class="special">&amp;))</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">{</span> <span class="comment">// Unnatural syntax.</span>
+    <span class="keyword">return</span> <span class="identifier">x</span> <span class="special">+</span> <span class="identifier">y</span><span class="special">;</span>
+<span class="special">}</span> <span class="identifier">BOOST_LOCAL_FUNCTION_NAME</span><span class="special">(</span><span class="identifier">add</span><span class="special">)</span>
+</pre><p>
+      Instead requiring the user to specify <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code>
+      only when needed allows for the more natural syntax <code class="computeroutput"><span class="identifier">BOOST_LOCAL_FUNCTION</span><span class="special">(</span><span class="keyword">int</span><span class="special">&amp;</span>
+      <span class="identifier">x</span><span class="special">,</span> <span class="keyword">int</span><span class="special">&amp;</span> <span class="identifier">y</span><span class="special">)</span></code> in the common cases when the parameter types
+      contain no comma (while still allowing to specify parameter types with commas
+      as special cases using <code class="computeroutput"><span class="identifier">BOOST_LOCAL_FUNCTION</span><span class="special">(</span><span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">((</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;))&amp;</span>
+      <span class="identifier">x</span><span class="special">,</span> <span class="keyword">int</span><span class="special">&amp;</span> <span class="identifier">y</span><span class="special">)</span></code>).
+    </p></div><div class="section boost_utility_identitytype_annex__implementation" title="Annex: Implementation"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="boost_utility_identitytype.annex__implementation"></a><a class="link" href="#boost_utility_identitytype.annex__implementation" title="Annex: Implementation">Annex:
+    Implementation</a></h2></div></div></div><p>
+      The implementation of this library macro is equivalent to the following: <sup>[<a name="boost_utility_identitytype.annex__implementation.f0" href="#ftn.boost_utility_identitytype.annex__implementation.f0" class="footnote">3</a>]</sup>
+    </p><pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">type_traits</span><span class="special">/</span><span class="identifier">function_traits</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
+
+<span class="preprocessor">#define</span> <span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">(</span><span class="identifier">parenthesized_type</span><span class="special">)</span> <span class="special">\</span>
+    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">function_traits</span><span class="special">&lt;</span><span class="keyword">void</span> <span class="identifier">parenthesized_type</span><span class="special">&gt;::</span><span class="identifier">arg1_type</span>
+</pre><p>
+      Essentially, the type is wrapped between round parenthesis <code class="computeroutput"><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span>
+      <span class="keyword">char</span><span class="special">&gt;)</span></code>
+      so it can be passed as a single macro parameter even if it contains commas.
+      Then the parenthesized type is transformed into the type of a function returning
+      <code class="computeroutput"><span class="keyword">void</span></code> and with the specified type
+      as the type of the first and only argument <code class="computeroutput"><span class="keyword">void</span>
+      <span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;)</span></code>. Finally, the type of the first argument
+      <code class="computeroutput"><span class="identifier">arg1_type</span></code> is extracted at compile-time
+      using the <code class="computeroutput"><span class="identifier">function_traits</span></code> meta-function
+      therefore obtaining the original type from the parenthesized type (effectively
+      stripping the extra parenthesis from around the specified type).
+    </p></div><div class="section reference" title="Reference"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="reference"></a>Reference</h2></div></div></div><div class="section header_boost_utility_identity_type_hpp" title="Header &lt;boost/utility/identity_type.hpp&gt;"><div class="titlepage"><div><div><h3 class="title"><a name="header.boost.utility.identity_type_hpp"></a>Header &lt;<a href="../../../../../boost/utility/identity_type.hpp" target="_top">boost/utility/identity_type.hpp</a>&gt;</h3></div></div></div><p>Wrap type expressions with round parenthesis so they can be passed to macros even if they contain commas. </p><pre class="synopsis">
+
+<a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a>(parenthesized_type)</pre><div class="refentry" title="Macro BOOST_IDENTITY_TYPE"><a name="BOOST_IDENTITY_TYPE"></a><div class="titlepage"></div><div class="refnamediv"><h2><span class="refentrytitle">Macro BOOST_IDENTITY_TYPE</span></h2><p>BOOST_IDENTITY_TYPE — This macro allows to wrap the specified type expression within extra round parenthesis so the type can be passed as a single macro parameter even if it contains commas (not already wrapped within round parenthesis). </p></div><h2 class="refsynopsisdiv-title">Synopsis</h2><div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="#header.boost.utility.identity_type_hpp" title="Header &lt;boost/utility/identity_type.hpp&gt;">boost/utility/identity_type.hpp</a>&gt;
+
+</span>BOOST_IDENTITY_TYPE(parenthesized_type)</pre></div><div class="refsect1" title="Description"><a name="id554262"></a><h2>Description</h2><p><span class="bold"><strong>Parameters:</strong></span> </p><div class="informaltable"><table class="table"><colgroup><col><col></colgroup><tbody><tr><td><span class="bold"><strong><code class="computeroutput">parenthesized_type</code></strong></span></td><td>The type expression to be passed as macro parameter wrapped by a single set of round parenthesis <code class="computeroutput">(...)</code>. This type expression can contain an arbitrary number of commas.  </td></tr></tbody></table></div><p>
+</p><p>This macro works on any C++03 compiler (it does not use variadic macros).</p><p>This macro must be prefixed by <code class="computeroutput">typename</code> when used within templates. Note that the compiler will not be able to automatically determine function template parameters when they are wrapped with this macro (these parameters need to be explicitly specified when calling the function template).</p><p>On some compilers (like GCC), using this macro on abstract types requires to add and remove a reference to the specified type. </p></div></div></div></div><div class="footnotes"><br><hr width="100" align="left"><div class="footnote"><p><sup>[<a id="ftn.boost_utility_identitytype.solution.f0" href="#boost_utility_identitytype.solution.f0" class="para">1</a>] </sup>
+        Using variadic macros, it would be possible to require a single set of extra
+        parenthesis <code class="computeroutput"><span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">(</span></code><code class="literal"><span class="emphasis"><em>type</em></span></code><code class="computeroutput"><span class="special">)</span></code> instead of two <code class="computeroutput"><span class="identifier">BOOST_IDENTITY_TYPE</span><span class="special">((</span></code><code class="literal"><span class="emphasis"><em>type</em></span></code><code class="computeroutput"><span class="special">))</span></code> but variadic macros are not part of C++03
+        (even if nowadays they are supported by most modern compilers and they are
+        also part of C++11).
+      </p></div><div class="footnote"><p><sup>[<a id="ftn.boost_utility_identitytype.templates.f0" href="#boost_utility_identitytype.templates.f0" class="para">2</a>] </sup>
+        This is because the implementation of <code class="computeroutput"><a class="link" href="#BOOST_IDENTITY_TYPE" title="Macro BOOST_IDENTITY_TYPE">BOOST_IDENTITY_TYPE</a></code>
+        wraps the specified type within a meta-function.
+      </p></div><div class="footnote"><p><sup>[<a id="ftn.boost_utility_identitytype.annex__implementation.f0" href="#boost_utility_identitytype.annex__implementation.f0" class="para">3</a>] </sup>
+        There is absolutely no guarantee that the macro is actually implemented using
+        the code listed in this documentation. The listed code is for explanatory
+        purposes only.
+      </p></div></div></div></body></html>

identity_type/doc/identity_type.qbk

@@ -0,0 +1,165 @@
+
+[/ Copyright (C) 2009-2012 Lorenzo Caminiti ]
+[/ Distributed under the Boost Software License, Version 1.0 ]
+[/ (see accompanying file LICENSE_1_0.txt or a copy at ]
+[/ http://www.boost.org/LICENSE_1_0.txt) ]
+[/ Home at http://www.boost.org/libs/utility/identity_type ]
+
+[library Boost.Utility/IdentityType
+    [quickbook 1.5]
+    [version 1.0.0]
+    [copyright 2009-2012 Lorenzo Caminiti]
+    [purpose wraps types with round parenthesis]
+    [license
+        Distributed under the Boost Software License, Version 1.0
+        (see accompanying file LICENSE_1_0.txt or a copy at
+        [@http://www.boost.org/LICENSE_1_0.txt])
+    ]
+    [authors [Caminiti <email>lorcaminiti@gmail.com</email>, Lorenzo]]
+    [category Utilities]
+]
+
+This library allows to wrap types within round parenthesis so they can always be passed as macro parameters.
+
+[import ../test/var_error.cpp]
+[import ../test/var.cpp]
+[import ../test/template.cpp]
+[import ../test/abstract.cpp]
+[import ../test/paren.cpp]
+
+[section Motivation]
+
+Consider the following macro which declares a variable named `var`[^['n]] with the specified [^['type]] (see also [@../../test/var_error.cpp =var_error.cpp=]):
+
+[var_error]
+
+The first macro invocation works correctly declaring a variable named `var1` of type `int`.
+However, the second macro invocation fails generating a preprocessor error similar to the following:
+
+[pre
+    error: macro "VAR" passed 3 arguments, but takes just 2
+]
+
+That is because the `std::map` type passed as the first macro parameter contains a comma `,` not wrapped by round parenthesis `()`.
+The preprocessor interprets that unwrapped comma as a separation between macro parameters concluding that a total of three (and not two) parameters are passed to the macro in the following order:
+
+# `std::map<int`
+# `char>`
+# `2`
+
+Note that, differently from the compiler, the preprocessor only recognizes round parenthesis `()`.
+Angular `<>` and squared `[]` parenthesis are not recognized by the preprocessor when parsing macro parameters.
+
+[endsect]
+
+[section Solution]
+
+In some cases, it might be possible to workaround this issue by avoiding to pass the type expression to the macro all together.
+For example, in the case above a `typedef` could have been used to specify the type expression with the commas outside the macro (see also [@../../test/var.cpp =var.cpp=]):
+
+[var_typedef]
+
+When this is neither possible nor desired (e.g., see the function template `f` in the section below), this library header [headerref boost/utility/identity_type.hpp] defines a macro [macroref BOOST_IDENTITY_TYPE] which can be used to workaround the issue while keeping the type expression as one of the macro parameters (see also [@../../test/var.cpp =var.cpp=]).
+
+[var_ok]
+
+The [macroref BOOST_IDENTITY_TYPE] macro expands to an expression that evaluates (at compile-time) to the specified type.
+The specified type is never split into multiple macro parameters because it is always wrapped by a set of extra round parenthesis `()`.
+In fact, a total of two sets of round parenthesis must be used: The parenthesis to invoke the macro `BOOST_IDENTITY_TYPE(...)` plus the inner parenthesis to wrap the type passed to the macro `BOOST_IDENTITY_TYPE((...))`.
+
+This macro works on any [@http://www.open-std.org/JTC1/SC22/WG21/docs/standards C++03] compiler (and it does not use [@http://en.wikipedia.org/wiki/Variadic_macro variadic macros]).
+[footnote
+Using variadic macros, it would be possible to require a single set of extra parenthesis `BOOST_IDENTITY_TYPE(`[^['type]]`)` instead of two `BOOST_IDENTITY_TYPE((`[^['type]]`))` but variadic macros are not part of C++03 (even if nowadays they are supported by most modern compilers and they are also part of C++11).
+]
+The authors originally developed and tested this library using GNU Compiler Collection (GCC) C++ 4.5.3 (with and without C++11 features enabled `-std=c++0x`) on Cygwin and Miscrosoft Visual C++ (MSVC) 8.0 on Windows 7.
+See the library [@http://www.boost.org/development/tests/release/developer/utility-identity_type.html regressions test results] for more information on supported compilers and platforms.
+
+[endsect]
+
+[section Templates]
+
+This macro must be prefixed by `typename` when used within templates.
+For example, let's program a macro that declares a function parameter named `arg`[^['n]] with the specified [^['type]] (see also [@../../test/template.cpp =template.cpp=]):
+
+[template_f_decl]
+[template_f_call]
+
+However, note that the template parameter `char` must be manually specified when invoking the function as in `f<char>(a)`.
+In fact, when the [macroref BOOST_IDENTITY_TYPE] macro is used to wrap a function template parameter, the template parameter can no longer be automatically deduced by the compiler form the function call as `f(a)` would have done.
+[footnote
+This is because the implementation of [macroref BOOST_IDENTITY_TYPE] wraps the specified type within a meta-function.
+]
+(This limitation does not apply to class templates because class template parameters must always be explicitly specified.)
+In other words, without using the [macroref BOOST_IDENTITY_TYPE] macro, C++ would normally be able to automatically deduce the function template parameter as shown below:
+
+[template_g_decl]
+[template_g_call]
+
+[endsect]
+
+[section Abstract Types]
+
+On some compilers (e.g., GCC), using this macro on abstract types (i.e., classes with one or more pure virtual functions) generates a compiler error.
+This can be avoided by manipulating the type adding and removing a reference to it.
+
+Let's program a macro that performs a static assertion on a [@http://en.wikipedia.org/wiki/Template_metaprogramming Template Meta-Programming] (TMP) meta-function (similarly to Boost.MPL [@http://www.boost.org/doc/libs/1_36_0/libs/mpl/doc/refmanual/assert.html `BOOST_MPL_ASSERT`]).
+The [macroref BOOST_IDENTITY_TYPE] macro can be used to pass a meta-function with multiple template parameters to the assert macro (so to handle the commas separating the template parameters).
+In this case, if the meta-function is an abstract type, it needs to be manipulated adding and removing a reference to it (see also [@../../test/abstract.cpp =abstract.cpp=]):
+
+[abstract]
+
+[endsect]
+
+[section Annex: Usage]
+
+The [macroref BOOST_IDENTITY_TYPE] macro can be used either when calling a user-defined macro (as shown by the examples so far), or internally when implementing a user-defined macro (as shown below).
+When [macroref BOOST_IDENTITY_TYPE] is used in the implementation of the user-defined macro, the caller of the user macro will have to specify the extra parenthesis (see also [@../../test/paren.cpp =paren.cpp=]):
+
+[paren]
+
+However, note that the caller will /always/ have to specify the extra parenthesis even when the macro parameters contain no comma:
+
+[paren_always]
+
+In some cases, using [macroref BOOST_IDENTITY_TYPE] in the implementation of the user-defined macro might provide the best syntax for the caller.
+For example, this is the case for `BOOST_MPL_ASSERT` because the majority of template meta-programming expressions contain unwrapped commas so it is less confusing for the user to always specify the extra parenthesis `((...))` instead of using [macroref BOOST_IDENTITY_TYPE]:
+
+    BOOST_MPL_ASSERT(( // Natural syntax.
+        boost::mpl::and_<
+              boost::is_const<T>
+            , boost::is_reference<T>
+        >
+    ));
+
+However, in other situations it might be preferable to not require the extra parenthesis in the common cases and handle commas as special cases using [macroref BOOST_IDENTITY_TYPE].
+For example, this is the case for [@http://www.boost.org/libs/local_function `BOOST_LOCAL_FUNCTION`] for which always requiring the extra parenthesis `((...))` around the types would lead to an unnatural syntax for the local function signature:
+
+    int BOOST_LOCAL_FUNCTION( ((int&)) x, ((int&)) y ) { // Unnatural syntax.
+        return x + y;
+    } BOOST_LOCAL_FUNCTION_NAME(add)
+
+Instead requiring the user to specify [macroref BOOST_IDENTITY_TYPE] only when needed allows for the more natural syntax `BOOST_LOCAL_FUNCTION(int& x, int& y)` in the common cases when the parameter types contain no comma (while still allowing to specify parameter types with commas as special cases using `BOOST_LOCAL_FUNCTION(BOOST_IDENTITY_TYPE((std::map<int, char>))& x, int& y)`).
+
+[endsect]
+
+[section Annex: Implementation]
+
+The implementation of this library macro is equivalent to the following:
+[footnote
+There is absolutely no guarantee that the macro is actually implemented using the code listed in this documentation.
+The listed code is for explanatory purposes only.
+]
+
+    #include <boost/type_traits/function_traits.hpp>
+    
+    #define BOOST_IDENTITY_TYPE(parenthesized_type) \
+        boost::function_traits<void parenthesized_type>::arg1_type
+
+Essentially, the type is wrapped between round parenthesis `(std::map<int, char>)` so it can be passed as a single macro parameter even if it contains commas.
+Then the parenthesized type is transformed into the type of a function returning `void` and with the specified type as the type of the first and only argument `void (std::map<int, char>)`.
+Finally, the type of the first argument `arg1_type` is extracted at compile-time using the `function_traits` meta-function therefore obtaining the original type from the parenthesized type (effectively stripping the extra parenthesis from around the specified type).
+
+[endsect]
+
+[xinclude reference.xml]
+

identity_type/index.html

@@ -0,0 +1,15 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+  <head>
+    <meta http-equiv="refresh" content="0; URL=doc/html/index.html">
+  </head>
+  <body>
+    Automatic redirection failed, click this 
+    <a href="doc/html/index.html">link</a> &nbsp;<hr>
+    <p><EFBFBD> Copyright Lorenzo Caminiti, 2009-2012</p>
+    <p>Distributed under the Boost Software License, Version 1.0 (see 
+    accompanying file <a href="../../../LICENSE_1_0.txt">
+    LICENSE_1_0.txt</a> or a copy at
+    <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</p>
+  </body>
+</html>

identity_type/test/Jamfile.v2

@@ -0,0 +1,16 @@
+
+# Copyright (C) 2009-2012 Lorenzo Caminiti
+# Distributed under the Boost Software License, Version 1.0
+# (see accompanying file LICENSE_1_0.txt or a copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+# Home at http://www.boost.org/libs/utility/identity_type
+
+import testing ;
+
+compile-fail var_error.cpp ;
+run var.cpp ;
+run template.cpp ;
+run abstract.cpp ;
+run noncopyable.cpp ;
+run paren.cpp ;
+

identity_type/test/abstract.cpp

@@ -0,0 +1,35 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/utility/identity_type
+
+#include <boost/utility/identity_type.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/type_traits/add_reference.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+
+//[abstract
+#define TMP_ASSERT(metafunction) \
+    BOOST_STATIC_ASSERT(metafunction::value)
+
+template<typename T, bool b>
+struct abstract {
+    static const bool value = b;
+    virtual void f(T const& x) = 0;     // Pure virtual function.
+};
+
+TMP_ASSERT(
+    boost::remove_reference<            // Add and remove
+        BOOST_IDENTITY_TYPE((           // reference for
+            boost::add_reference<       // abstract type.
+                abstract<int, true>
+            >::type
+        ))
+    >::type
+);
+//]
+
+int main() { return 0; }
+

identity_type/test/noncopyable.cpp

@@ -0,0 +1,25 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/utility/identity_type
+
+#include <boost/utility/identity_type.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/noncopyable.hpp>
+
+//[noncopyable
+#define TMP_ASSERT(metafunction) \
+    BOOST_STATIC_ASSERT(metafunction::value)
+
+template<typename T, T init>
+struct noncopyable : boost::noncopyable {
+    static const T value = init;
+};
+
+TMP_ASSERT(BOOST_IDENTITY_TYPE((noncopyable<bool, true>)));
+//]
+
+int main() { return 0; }
+

identity_type/test/paren.cpp

@@ -0,0 +1,35 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/utility/identity_type
+
+#include <boost/utility/identity_type.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/type_traits/is_const.hpp>
+#include <map>
+
+//[paren
+#define TMP_ASSERT_PAREN(parenthesized_metafunction) \
+    /* use `BOOST_IDENTITY_TYPE` in macro definition instead of invocation */ \
+    BOOST_STATIC_ASSERT(BOOST_IDENTITY_TYPE(parenthesized_metafunction)::value)
+
+#define TMP_ASSERT(metafunction) \
+    BOOST_STATIC_ASSERT(metafunction::value)
+
+// Specify only extra parenthesis `((...))`.
+TMP_ASSERT_PAREN((boost::is_const<std::map<int, char> const>));
+
+// Specify both the extra parenthesis `((...))` and `BOOST_IDENTITY_TYPE` macro.
+TMP_ASSERT(BOOST_IDENTITY_TYPE((boost::is_const<std::map<int, char> const>)));
+//]
+
+//[paren_always
+TMP_ASSERT_PAREN((boost::is_const<int const>)); // Always extra `((...))`.
+
+TMP_ASSERT(boost::is_const<int const>); // No extra `((...))` and no macro.
+//]
+
+int main() { return 0; }
+

identity_type/test/template.cpp

@@ -0,0 +1,48 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/utility/identity_type
+
+#include <boost/utility/identity_type.hpp>
+#include <map>
+#include <iostream>
+
+//[template_f_decl
+#define ARG(type, n) type arg ## n
+
+template<typename T>
+void f( // Prefix macro with `typename` in templates.
+    ARG(typename BOOST_IDENTITY_TYPE((std::map<int, T>)), 1)
+) {
+    std::cout << arg1[0] << std::endl;
+}
+//]
+
+//[template_g_decl
+template<typename T>
+void g(
+    std::map<int, T> arg1
+) {
+    std::cout << arg1[0] << std::endl;
+}
+//]
+
+int main() {
+    //[template_f_call
+    std::map<int, char> a;
+    a[0] = 'a';
+    
+    f<char>(a); // OK...
+    // f(a);    // ... but error.
+    //]
+
+    //[template_g_call
+    g<char>(a); // OK...
+    g(a);       // ... and also OK.
+    //]
+    
+    return 0;
+}
+

identity_type/test/var.cpp

@@ -0,0 +1,26 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/utility/identity_type
+
+#include <map>
+
+#define VAR(type, n) type var ## n
+
+VAR(int, 1); // OK.
+
+//[var_typedef
+typedef std::map<int, char> map_type;
+VAR(map_type, 3); // OK.
+//]
+
+//[var_ok
+#include <boost/utility/identity_type.hpp>
+
+VAR(BOOST_IDENTITY_TYPE((std::map<int, char>)), 4); // OK.
+//]
+
+int main() { return 0; }
+

identity_type/test/var_error.cpp

@@ -0,0 +1,18 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/utility/identity_type
+
+#include <map>
+
+//[var_error
+#define VAR(type, n) type var ## n
+
+VAR(int, 1);                    // OK.
+VAR(std::map<int, char>, 2);    // Error.
+//]
+
+int main() { return 0; }
+

in_place_factories.html

@@ -46,7 +46,7 @@ HREF="../../boost/utility/typed_in_place_factory.hpp">boost/utility/typed_in_pla
 <p>Suppose we have a class</p>
 <pre>struct X
 {
-  X ( int, std:::string ) ;
+  X ( int, std::string ) ;
 } ;</pre>
 <p>And a container for it which supports an empty state (that is, which can contain zero objects):</p>
 <pre>struct C

include/boost/assert.hpp

@@ -1,131 +0,0 @@
-//
-//  boost/assert.hpp - BOOST_ASSERT(expr)
-//                     BOOST_ASSERT_MSG(expr, msg)
-//                     BOOST_VERIFY(expr)
-//
-//  Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
-//  Copyright (c) 2007 Peter Dimov
-//  Copyright (c) Beman Dawes 2011
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-//
-//  Note: There are no include guards. This is intentional.
-//
-//  See http://www.boost.org/libs/utility/assert.html for documentation.
-//
-
-//
-// Stop inspect complaining about use of 'assert':
-//
-// boostinspect:naassert_macro
-//
-
-//--------------------------------------------------------------------------------------//
-//                                     BOOST_ASSERT                                     //
-//--------------------------------------------------------------------------------------//
-
-#undef BOOST_ASSERT
-
-#if defined(BOOST_DISABLE_ASSERTS)
-
-# define BOOST_ASSERT(expr) ((void)0)
-
-#elif defined(BOOST_ENABLE_ASSERT_HANDLER)
-
-#include <boost/current_function.hpp>
-
-namespace boost
-{
-  void assertion_failed(char const * expr,
-                        char const * function, char const * file, long line); // user defined
-} // namespace boost
-
-#define BOOST_ASSERT(expr) ((expr) \
-  ? ((void)0) \
-  : ::boost::assertion_failed(#expr, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
-
-#else
-# include <assert.h> // .h to support old libraries w/o <cassert> - effect is the same
-# define BOOST_ASSERT(expr) assert(expr)
-#endif
-
-//--------------------------------------------------------------------------------------//
-//                                   BOOST_ASSERT_MSG                                   //
-//--------------------------------------------------------------------------------------//
-
-# undef BOOST_ASSERT_MSG
-
-#if defined(BOOST_DISABLE_ASSERTS) || defined(NDEBUG)
-
-  #define BOOST_ASSERT_MSG(expr, msg) ((void)0)
-
-#elif defined(BOOST_ENABLE_ASSERT_HANDLER)
-
-  #include <boost/current_function.hpp>
-
-  namespace boost
-  {
-    void assertion_failed_msg(char const * expr, char const * msg,
-                              char const * function, char const * file, long line); // user defined
-  } // namespace boost
-
-  #define BOOST_ASSERT_MSG(expr, msg) ((expr) \
-    ? ((void)0) \
-    : ::boost::assertion_failed_msg(#expr, msg, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
-
-#else
-  #ifndef BOOST_ASSERT_HPP
-    #define BOOST_ASSERT_HPP
-    #include <cstdlib>
-    #include <iostream>
-    #include <boost/current_function.hpp>
-
-    //  IDE's like Visual Studio perform better if output goes to std::cout or
-    //  some other stream, so allow user to configure output stream:
-    #ifndef BOOST_ASSERT_MSG_OSTREAM
-    # define BOOST_ASSERT_MSG_OSTREAM std::cerr
-    #endif
-
-    namespace boost
-    { 
-      namespace assertion 
-      { 
-        namespace detail
-        {
-          inline void assertion_failed_msg(char const * expr, char const * msg, char const * function,
-            char const * file, long line)
-          {
-            BOOST_ASSERT_MSG_OSTREAM
-              << "***** Internal Program Error - assertion (" << expr << ") failed in "
-              << function << ":\n"
-              << file << '(' << line << "): " << msg << std::endl;
-            std::abort();
-          }
-        } // detail
-      } // assertion
-    } // detail
-  #endif
-
-  #define BOOST_ASSERT_MSG(expr, msg) ((expr) \
-    ? ((void)0) \
-    : ::boost::assertion::detail::assertion_failed_msg(#expr, msg, \
-          BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
-#endif
-
-//--------------------------------------------------------------------------------------//
-//                                     BOOST_VERIFY                                     //
-//--------------------------------------------------------------------------------------//
-
-#undef BOOST_VERIFY
-
-#if defined(BOOST_DISABLE_ASSERTS) || ( !defined(BOOST_ENABLE_ASSERT_HANDLER) && defined(NDEBUG) )
-
-# define BOOST_VERIFY(expr) ((void)(expr))
-
-#else
-
-# define BOOST_VERIFY(expr) BOOST_ASSERT(expr)
-
-#endif

include/boost/call_traits.hpp

@@ -5,7 +5,7 @@
 //
 //  See http://www.boost.org/libs/utility for most recent version including documentation.
 
-//  See boost/detail/call_traits.hpp and boost/detail/ob_call_traits.hpp
+//  See boost/detail/call_traits.hpp
 //  for full copyright notices.
 
 #ifndef BOOST_CALL_TRAITS_HPP
@@ -15,10 +15,6 @@
 #include <boost/config.hpp>
 #endif
 
-#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-#include <boost/detail/ob_call_traits.hpp>
-#else
 #include <boost/detail/call_traits.hpp>
-#endif
 
 #endif // BOOST_CALL_TRAITS_HPP

include/boost/checked_delete.hpp

@@ -1,69 +0,0 @@
-#ifndef BOOST_CHECKED_DELETE_HPP_INCLUDED
-#define BOOST_CHECKED_DELETE_HPP_INCLUDED
-
-// MS compatible compilers support #pragma once
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
-#endif
-
-//
-//  boost/checked_delete.hpp
-//
-//  Copyright (c) 2002, 2003 Peter Dimov
-//  Copyright (c) 2003 Daniel Frey
-//  Copyright (c) 2003 Howard Hinnant
-//
-//  Distributed under the Boost Software License, Version 1.0. (See
-//  accompanying file LICENSE_1_0.txt or copy at
-//  http://www.boost.org/LICENSE_1_0.txt)
-//
-//  See http://www.boost.org/libs/utility/checked_delete.html for documentation.
-//
-
-namespace boost
-{
-
-// verify that types are complete for increased safety
-
-template<class T> inline void checked_delete(T * x)
-{
-    // intentionally complex - simplification causes regressions
-    typedef char type_must_be_complete[ sizeof(T)? 1: -1 ];
-    (void) sizeof(type_must_be_complete);
-    delete x;
-}
-
-template<class T> inline void checked_array_delete(T * x)
-{
-    typedef char type_must_be_complete[ sizeof(T)? 1: -1 ];
-    (void) sizeof(type_must_be_complete);
-    delete [] x;
-}
-
-template<class T> struct checked_deleter
-{
-    typedef void result_type;
-    typedef T * argument_type;
-
-    void operator()(T * x) const
-    {
-        // boost:: disables ADL
-        boost::checked_delete(x);
-    }
-};
-
-template<class T> struct checked_array_deleter
-{
-    typedef void result_type;
-    typedef T * argument_type;
-
-    void operator()(T * x) const
-    {
-        boost::checked_array_delete(x);
-    }
-};
-
-} // namespace boost
-
-#endif  // #ifndef BOOST_CHECKED_DELETE_HPP_INCLUDED

include/boost/compressed_pair.hpp

@@ -5,7 +5,7 @@
 //
 //  See http://www.boost.org/libs/utility for most recent version including documentation.
 
-//  See boost/detail/compressed_pair.hpp and boost/detail/ob_compressed_pair.hpp
+//  See boost/detail/compressed_pair.hpp
 //  for full copyright notices.
 
 #ifndef BOOST_COMPRESSED_PAIR_HPP
@@ -15,10 +15,6 @@
 #include <boost/config.hpp>
 #endif
 
-#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-#include <boost/detail/ob_compressed_pair.hpp>
-#else
 #include <boost/detail/compressed_pair.hpp>
-#endif
 
 #endif // BOOST_COMPRESSED_PAIR_HPP

include/boost/current_function.hpp

@@ -1,67 +0,0 @@
-#ifndef BOOST_CURRENT_FUNCTION_HPP_INCLUDED
-#define BOOST_CURRENT_FUNCTION_HPP_INCLUDED
-
-// MS compatible compilers support #pragma once
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
-#endif
-
-//
-//  boost/current_function.hpp - BOOST_CURRENT_FUNCTION
-//
-//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-//
-//  http://www.boost.org/libs/utility/current_function.html
-//
-
-namespace boost
-{
-
-namespace detail
-{
-
-inline void current_function_helper()
-{
-
-#if defined(__GNUC__) || (defined(__MWERKS__) && (__MWERKS__ >= 0x3000)) || (defined(__ICC) && (__ICC >= 600))
-
-# define BOOST_CURRENT_FUNCTION __PRETTY_FUNCTION__
-
-#elif defined(__DMC__) && (__DMC__ >= 0x810)
-
-# define BOOST_CURRENT_FUNCTION __PRETTY_FUNCTION__
-
-#elif defined(__FUNCSIG__)
-
-# define BOOST_CURRENT_FUNCTION __FUNCSIG__
-
-#elif (defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 600)) || (defined(__IBMCPP__) && (__IBMCPP__ >= 500))
-
-# define BOOST_CURRENT_FUNCTION __FUNCTION__
-
-#elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x550)
-
-# define BOOST_CURRENT_FUNCTION __FUNC__
-
-#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)
-
-# define BOOST_CURRENT_FUNCTION __func__
-
-#else
-
-# define BOOST_CURRENT_FUNCTION "(unknown)"
-
-#endif
-
-}
-
-} // namespace detail
-
-} // namespace boost
-
-#endif // #ifndef BOOST_CURRENT_FUNCTION_HPP_INCLUDED

include/boost/detail/call_traits.hpp

@@ -24,6 +24,7 @@
 #include <cstddef>
 
 #include <boost/type_traits/is_arithmetic.hpp>
+#include <boost/type_traits/is_enum.hpp>
 #include <boost/type_traits/is_pointer.hpp>
 #include <boost/detail/workaround.hpp>
 
@@ -43,20 +44,26 @@ struct ct_imp2<T, true>
    typedef const T param_type;
 };
 
-template <typename T, bool isp, bool b1>
+template <typename T, bool isp, bool b1, bool b2>
 struct ct_imp
 {
    typedef const T& param_type;
 };
 
-template <typename T, bool isp>
-struct ct_imp<T, isp, true>
+template <typename T, bool isp, bool b2>
+struct ct_imp<T, isp, true, b2>
 {
    typedef typename ct_imp2<T, sizeof(T) <= sizeof(void*)>::param_type param_type;
 };
 
-template <typename T, bool b1>
-struct ct_imp<T, true, b1>
+template <typename T, bool isp, bool b1>
+struct ct_imp<T, isp, b1, true>
+{
+   typedef typename ct_imp2<T, sizeof(T) <= sizeof(void*)>::param_type param_type;
+};
+
+template <typename T, bool b1, bool b2>
+struct ct_imp<T, true, b1, b2>
 {
    typedef const T param_type;
 };
@@ -79,7 +86,8 @@ public:
    typedef typename boost::detail::ct_imp<
       T,
       ::boost::is_pointer<T>::value,
-      ::boost::is_arithmetic<T>::value
+      ::boost::is_arithmetic<T>::value,
+      ::boost::is_enum<T>::value
    >::param_type param_type;
 };
 

include/boost/detail/compressed_pair.hpp

@@ -6,7 +6,7 @@
 //  See http://www.boost.org/libs/utility for most recent version including documentation.
 
 // compressed_pair: pair that "compresses" empty members
-// (see libs/utility/compressed_pair.htm)
+// (see libs/utility/doc/html/compressed_pair.html)
 //
 // JM changes 25 Jan 2004:
 // For the case where T1 == T2 and both are empty, then first() and second()

include/boost/detail/ob_call_traits.hpp

@@ -1,168 +0,0 @@
-//  (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
-//  Use, modification and distribution are subject to the Boost Software License,
-//  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-//  http://www.boost.org/LICENSE_1_0.txt).
-//
-//  See http://www.boost.org/libs/utility for most recent version including documentation.
-//
-//  Crippled version for crippled compilers:
-//  see libs/utility/call_traits.htm
-//
-
-/* Release notes:
-   01st October 2000:
-      Fixed call_traits on VC6, using "poor man's partial specialisation",
-      using ideas taken from "Generative programming" by Krzysztof Czarnecki 
-      & Ulrich Eisenecker.
-*/
-
-#ifndef BOOST_OB_CALL_TRAITS_HPP
-#define BOOST_OB_CALL_TRAITS_HPP
-
-#ifndef BOOST_CONFIG_HPP
-#include <boost/config.hpp>
-#endif
-
-#ifndef BOOST_ARITHMETIC_TYPE_TRAITS_HPP
-#include <boost/type_traits/arithmetic_traits.hpp>
-#endif
-#ifndef BOOST_COMPOSITE_TYPE_TRAITS_HPP
-#include <boost/type_traits/composite_traits.hpp>
-#endif
-
-namespace boost{
-
-#ifdef BOOST_MSVC6_MEMBER_TEMPLATES
-//
-// use member templates to emulate
-// partial specialisation:
-//
-namespace detail{
-
-template <class T>
-struct standard_call_traits
-{
-   typedef T value_type;
-   typedef T& reference;
-   typedef const T& const_reference;
-   typedef const T& param_type;
-};
-template <class T>
-struct simple_call_traits
-{
-   typedef T value_type;
-   typedef T& reference;
-   typedef const T& const_reference;
-   typedef const T param_type;
-};
-template <class T>
-struct reference_call_traits
-{
-   typedef T value_type;
-   typedef T reference;
-   typedef T const_reference;
-   typedef T param_type;
-};
-
-template <bool pointer, bool arithmetic, bool reference>
-struct call_traits_chooser
-{
-   template <class T>
-   struct rebind
-   {
-      typedef standard_call_traits<T> type;
-   };
-};
-
-template <>
-struct call_traits_chooser<true, false, false>
-{
-   template <class T>
-   struct rebind
-   {
-      typedef simple_call_traits<T> type;
-   };
-};
-
-template <>
-struct call_traits_chooser<false, false, true>
-{
-   template <class T>
-   struct rebind
-   {
-      typedef reference_call_traits<T> type;
-   };
-};
-
-template <bool size_is_small> 
-struct call_traits_sizeof_chooser2
-{
-   template <class T>
-   struct small_rebind
-   {
-      typedef simple_call_traits<T> small_type;
-   };
-};
-
-template<> 
-struct call_traits_sizeof_chooser2<false>
-{
-   template <class T>
-   struct small_rebind
-   {
-      typedef standard_call_traits<T> small_type;
-   };
-};
-
-template <>
-struct call_traits_chooser<false, true, false>
-{
-   template <class T>
-   struct rebind
-   {
-      enum { sizeof_choice = (sizeof(T) <= sizeof(void*)) };
-      typedef call_traits_sizeof_chooser2<(sizeof(T) <= sizeof(void*))> chooser;
-      typedef typename chooser::template small_rebind<T> bound_type;
-      typedef typename bound_type::small_type type;
-   };
-};
-
-} // namespace detail
-template <typename T>
-struct call_traits
-{
-private:
-    typedef detail::call_traits_chooser<
-         ::boost::is_pointer<T>::value,
-         ::boost::is_arithmetic<T>::value, 
-         ::boost::is_reference<T>::value
-      > chooser;
-   typedef typename chooser::template rebind<T> bound_type;
-   typedef typename bound_type::type call_traits_type;
-public:
-   typedef typename call_traits_type::value_type       value_type;
-   typedef typename call_traits_type::reference        reference;
-   typedef typename call_traits_type::const_reference  const_reference;
-   typedef typename call_traits_type::param_type       param_type;
-};
-
-#else
-//
-// sorry call_traits is completely non-functional
-// blame your broken compiler:
-//
-
-template <typename T>
-struct call_traits
-{
-   typedef T value_type;
-   typedef T& reference;
-   typedef const T& const_reference;
-   typedef const T& param_type;
-};
-
-#endif // member templates
-
-}
-
-#endif // BOOST_OB_CALL_TRAITS_HPP

include/boost/detail/ob_compressed_pair.hpp

@@ -167,17 +167,6 @@ public:
    compressed_pair_1(const ::boost::compressed_pair<T1,T2>& x)
       : T2(x.second()), _first(x.first()) {}
 
-#if defined(BOOST_MSVC) && BOOST_MSVC <= 1300
-  // Total weirdness. If the assignment to _first is moved after
-  // the call to the inherited operator=, then this breaks graph/test/graph.cpp
-  // by way of iterator_adaptor.
-  compressed_pair_1& operator=(const compressed_pair_1& x) {
-    _first = x._first;
-    T2::operator=(x);
-    return *this;
-  }
-#endif
-
    first_reference       first()       { return _first; }
    first_const_reference first() const { return _first; }
 

include/boost/exception.hpp

@@ -1,11 +0,0 @@
-//Copyright (c) 2006-2008 Emil Dotchevski and Reverge Studios, Inc.
-
-//Distributed under the Boost Software License, Version 1.0. (See accompanying
-//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-#ifndef UUID_1D94A7C6054E11DB9804B622A1EF5492
-#define UUID_1D94A7C6054E11DB9804B622A1EF5492
-
-#error The header <boost/exception.hpp> has been deprecated. Please #include <boost/exception/all.hpp> instead.
-
-#endif

include/boost/generator_iterator.hpp

@@ -1,80 +0,0 @@
-// (C) Copyright Jens Maurer 2001.
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-//
-// Revision History:
-
-// 15 Nov 2001   Jens Maurer
-//      created.
-
-//  See http://www.boost.org/libs/utility/iterator_adaptors.htm for documentation.
-
-#ifndef BOOST_ITERATOR_ADAPTOR_GENERATOR_ITERATOR_HPP
-#define BOOST_ITERATOR_ADAPTOR_GENERATOR_ITERATOR_HPP
-
-#include <boost/iterator/iterator_facade.hpp>
-#include <boost/ref.hpp>
-
-namespace boost {
-
-template<class Generator>
-class generator_iterator
-  : public iterator_facade<
-        generator_iterator<Generator>
-      , typename Generator::result_type
-      , single_pass_traversal_tag
-      , typename Generator::result_type const&
-    >
-{
-    typedef iterator_facade<
-        generator_iterator<Generator>
-      , typename Generator::result_type
-      , single_pass_traversal_tag
-      , typename Generator::result_type const&
-    > super_t;
-    
- public:
-    generator_iterator() {}
-    generator_iterator(Generator* g) : m_g(g), m_value((*m_g)()) {}
-
-    void increment()
-    {
-        m_value = (*m_g)();
-    }
-
-    const typename Generator::result_type&
-    dereference() const
-    {
-        return m_value;
-    }
-
-    bool equal(generator_iterator const& y) const
-    {
-        return this->m_g == y.m_g && this->m_value == y.m_value;
-    }
-
- private:
-    Generator* m_g;
-    typename Generator::result_type m_value;
-};
-
-template<class Generator>
-struct generator_iterator_generator
-{
-  typedef generator_iterator<Generator> type;
-};
-
-template <class Generator>
-inline generator_iterator<Generator>
-make_generator_iterator(Generator & gen)
-{
-  typedef generator_iterator<Generator> result_t;
-  return result_t(&gen);
-}
-
-} // namespace boost
-
-
-#endif // BOOST_ITERATOR_ADAPTOR_GENERATOR_ITERATOR_HPP
-

include/boost/next_prior.hpp

@@ -13,6 +13,17 @@
 #define BOOST_NEXT_PRIOR_HPP_INCLUDED
 
 #include <iterator>
+#if defined(_MSC_VER) && _MSC_VER <= 1310
+#include <boost/mpl/and.hpp>
+#include <boost/type_traits/is_integral.hpp>
+#endif
+#include <boost/type_traits/is_unsigned.hpp>
+#include <boost/type_traits/integral_promotion.hpp>
+#include <boost/type_traits/make_signed.hpp>
+#include <boost/type_traits/has_plus.hpp>
+#include <boost/type_traits/has_plus_assign.hpp>
+#include <boost/type_traits/has_minus.hpp>
+#include <boost/type_traits/has_minus_assign.hpp>
 
 namespace boost {
 
@@ -26,14 +37,118 @@ namespace boost {
 
 //  Contributed by Dave Abrahams
 
+namespace next_prior_detail {
+
+template< typename T, typename Distance, bool HasPlus = has_plus< T, Distance >::value >
+struct next_impl2
+{
+    static T call(T x, Distance n)
+    {
+        std::advance(x, n);
+        return x;
+    }
+};
+
+template< typename T, typename Distance >
+struct next_impl2< T, Distance, true >
+{
+    static T call(T x, Distance n)
+    {
+        return x + n;
+    }
+};
+
+
+template< typename T, typename Distance, bool HasPlusAssign = has_plus_assign< T, Distance >::value >
+struct next_impl1 :
+    public next_impl2< T, Distance >
+{
+};
+
+template< typename T, typename Distance >
+struct next_impl1< T, Distance, true >
+{
+    static T call(T x, Distance n)
+    {
+        x += n;
+        return x;
+    }
+};
+
+
+template<
+    typename T,
+    typename Distance,
+    typename PromotedDistance = typename integral_promotion< Distance >::type,
+#if !defined(_MSC_VER) || _MSC_VER > 1310
+    bool IsUInt = is_unsigned< PromotedDistance >::value
+#else
+    // MSVC 7.1 has problems with applying is_unsigned to non-integral types
+    bool IsUInt = mpl::and_< is_integral< PromotedDistance >, is_unsigned< PromotedDistance > >::value
+#endif
+>
+struct prior_impl3
+{
+    static T call(T x, Distance n)
+    {
+        std::advance(x, -n);
+        return x;
+    }
+};
+
+template< typename T, typename Distance, typename PromotedDistance >
+struct prior_impl3< T, Distance, PromotedDistance, true >
+{
+    static T call(T x, Distance n)
+    {
+        typedef typename make_signed< PromotedDistance >::type signed_distance;
+        std::advance(x, -static_cast< signed_distance >(static_cast< PromotedDistance >(n)));
+        return x;
+    }
+};
+
+
+template< typename T, typename Distance, bool HasMinus = has_minus< T, Distance >::value >
+struct prior_impl2 :
+    public prior_impl3< T, Distance >
+{
+};
+
+template< typename T, typename Distance >
+struct prior_impl2< T, Distance, true >
+{
+    static T call(T x, Distance n)
+    {
+        return x - n;
+    }
+};
+
+
+template< typename T, typename Distance, bool HasMinusAssign = has_minus_assign< T, Distance >::value >
+struct prior_impl1 :
+    public prior_impl2< T, Distance >
+{
+};
+
+template< typename T, typename Distance >
+struct prior_impl1< T, Distance, true >
+{
+    static T call(T x, Distance n)
+    {
+        x -= n;
+        return x;
+    }
+};
+
+} // namespace next_prior_detail
+
 template <class T>
 inline T next(T x) { return ++x; }
 
 template <class T, class Distance>
 inline T next(T x, Distance n)
 {
-    std::advance(x, n);
-    return x;
+    return next_prior_detail::next_impl1< T, Distance >::call(x, n);
 }
 
 template <class T>
@@ -42,8 +157,7 @@ inline T prior(T x) { return --x; }
 template <class T, class Distance>
 inline T prior(T x, Distance n)
 {
-    std::advance(x, -n);
-    return x;
+    return next_prior_detail::prior_impl1< T, Distance >::call(x, n);
 }
 
 } // namespace boost

include/boost/noncopyable.hpp

@@ -1,36 +0,0 @@
-//  Boost noncopyable.hpp header file  --------------------------------------//
-
-//  (C) Copyright Beman Dawes 1999-2003. Distributed under the Boost
-//  Software License, Version 1.0. (See accompanying file
-//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-//  See http://www.boost.org/libs/utility for documentation.
-
-#ifndef BOOST_NONCOPYABLE_HPP_INCLUDED
-#define BOOST_NONCOPYABLE_HPP_INCLUDED
-
-namespace boost {
-
-//  Private copy constructor and copy assignment ensure classes derived from
-//  class noncopyable cannot be copied.
-
-//  Contributed by Dave Abrahams
-
-namespace noncopyable_  // protection from unintended ADL
-{
-  class noncopyable
-  {
-   protected:
-      noncopyable() {}
-      ~noncopyable() {}
-   private:  // emphasize the following members are private
-      noncopyable( const noncopyable& );
-      const noncopyable& operator=( const noncopyable& );
-  };
-}
-
-typedef noncopyable_::noncopyable noncopyable;
-
-} // namespace boost
-
-#endif  // BOOST_NONCOPYABLE_HPP_INCLUDED

include/boost/operators.hpp

@@ -97,14 +97,7 @@
 namespace boost {
 namespace detail {
 
-template <typename T> class empty_base {
-
-// Helmut Zeisel, empty base class optimization bug with GCC 3.0.0
-#if defined(__GNUC__) && __GNUC__==3 && __GNUC_MINOR__==0 && __GNU_PATCHLEVEL__==0
-  bool dummy; 
-#endif
-
-};
+template <typename T> class empty_base {};
 
 } // namespace detail
 } // namespace boost
@@ -711,7 +704,6 @@ struct random_access_iteratable
 // the xxxx, xxxx1, and xxxx2 templates, importing them into boost:: as
 // necessary.
 //
-#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 
 // is_chained_base<> - a traits class used to distinguish whether an operator
 // template argument is being used for base class chaining, or is specifying a
@@ -809,24 +801,6 @@ BOOST_OPERATOR_TEMPLATE2(template_name##2)                         \
 BOOST_OPERATOR_TEMPLATE1(template_name##1)
 
 
-#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-
-#  define BOOST_OPERATOR_TEMPLATE4(template_name4) \
-        BOOST_IMPORT_TEMPLATE4(template_name4)
-#  define BOOST_OPERATOR_TEMPLATE3(template_name3) \
-        BOOST_IMPORT_TEMPLATE3(template_name3)
-#  define BOOST_OPERATOR_TEMPLATE2(template_name2) \
-        BOOST_IMPORT_TEMPLATE2(template_name2)
-#  define BOOST_OPERATOR_TEMPLATE1(template_name1) \
-        BOOST_IMPORT_TEMPLATE1(template_name1)
-
-   // In this case we can only assume that template_name<> is equivalent to the
-   // more commonly needed template_name1<> form.
-#  define BOOST_OPERATOR_TEMPLATE(template_name)                   \
-   template <class T, class B = ::boost::detail::empty_base<T> >   \
-   struct template_name : template_name##1<T, B> {};
-
-#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 
 namespace boost {
     
@@ -897,14 +871,10 @@ struct operators2
     , bitwise2<T,U
       > > > {};
 
-#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 template <class T, class U = T>
 struct operators : operators2<T, U> {};
 
 template <class T> struct operators<T, T>
-#else
-template <class T> struct operators
-#endif
     : totally_ordered<T
     , integer_arithmetic<T
     , bitwise<T

include/boost/ref.hpp

@@ -1,189 +0,0 @@
-#ifndef BOOST_REF_HPP_INCLUDED
-#define BOOST_REF_HPP_INCLUDED
-
-// MS compatible compilers support #pragma once
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
-#endif
-
-#include <boost/config.hpp>
-#include <boost/utility/addressof.hpp>
-#include <boost/mpl/bool.hpp>
-#include <boost/detail/workaround.hpp>
-
-//
-//  ref.hpp - ref/cref, useful helper functions
-//
-//  Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
-//  Copyright (C) 2001, 2002 Peter Dimov
-//  Copyright (C) 2002 David Abrahams
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-//
-//  See http://www.boost.org/libs/bind/ref.html for documentation.
-//
-
-namespace boost
-{
-
-template<class T> class reference_wrapper
-{ 
-public:
-    typedef T type;
-
-#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, < 1300 )
-
-    explicit reference_wrapper(T& t): t_(&t) {}
-
-#else
-
-    explicit reference_wrapper(T& t): t_(boost::addressof(t)) {}
-
-#endif
-
-    operator T& () const { return *t_; }
-
-    T& get() const { return *t_; }
-
-    T* get_pointer() const { return t_; }
-
-private:
-
-    T* t_;
-};
-
-# if defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT(0x581) )
-#  define BOOST_REF_CONST
-# else
-#  define BOOST_REF_CONST const
-# endif
-
-template<class T> inline reference_wrapper<T> BOOST_REF_CONST ref(T & t)
-{ 
-    return reference_wrapper<T>(t);
-}
-
-template<class T> inline reference_wrapper<T const> BOOST_REF_CONST cref(T const & t)
-{
-    return reference_wrapper<T const>(t);
-}
-
-# undef BOOST_REF_CONST
-
-# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-
-template<typename T>
-class is_reference_wrapper
-    : public mpl::false_
-{
-};
-
-template<typename T>
-class unwrap_reference
-{
- public:
-    typedef T type;
-};
-
-#  define AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(X) \
-template<typename T> \
-class is_reference_wrapper< X > \
-    : public mpl::true_ \
-{ \
-}; \
-\
-template<typename T> \
-class unwrap_reference< X > \
-{ \
- public: \
-    typedef T type; \
-}; \
-/**/
-
-AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T>)
-#if !defined(BOOST_NO_CV_SPECIALIZATIONS)
-AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> const)
-AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> volatile)
-AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF(reference_wrapper<T> const volatile)
-#endif
-
-#  undef AUX_REFERENCE_WRAPPER_METAFUNCTIONS_DEF
-
-# else // no partial specialization
-
-} // namespace boost
-
-#include <boost/type.hpp>
-
-namespace boost
-{
-
-namespace detail
-{
-  typedef char (&yes_reference_wrapper_t)[1];
-  typedef char (&no_reference_wrapper_t)[2];
-      
-  no_reference_wrapper_t is_reference_wrapper_test(...);
-
-  template<typename T>
-  yes_reference_wrapper_t is_reference_wrapper_test(type< reference_wrapper<T> >);
-
-  template<bool wrapped>
-  struct reference_unwrapper
-  {
-      template <class T>
-      struct apply
-      {
-          typedef T type;
-      };
-  };
-
-  template<>
-  struct reference_unwrapper<true>
-  {
-      template <class T>
-      struct apply
-      {
-          typedef typename T::type type;
-      };
-  };
-}
-
-template<typename T>
-class is_reference_wrapper
-{
- public:
-    BOOST_STATIC_CONSTANT(
-        bool, value = (
-             sizeof(detail::is_reference_wrapper_test(type<T>()))
-            == sizeof(detail::yes_reference_wrapper_t)));
-    
-    typedef ::boost::mpl::bool_<value> type;
-};
-
-template <typename T>
-class unwrap_reference
-    : public detail::reference_unwrapper<
-        is_reference_wrapper<T>::value
-      >::template apply<T>
-{};
-
-# endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-
-template <class T> inline typename unwrap_reference<T>::type&
-unwrap_ref(T& t)
-{
-    return t;
-}
-
-template<class T> inline T* get_pointer( reference_wrapper<T> const & r )
-{
-    return r.get_pointer();
-}
-
-} // namespace boost
-
-#endif // #ifndef BOOST_REF_HPP_INCLUDED

include/boost/swap.hpp

@@ -1,12 +0,0 @@
-// Copyright (C) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-#ifndef BOOST_SWAP_HPP
-#define BOOST_SWAP_HPP
-
-#include "boost/utility/swap.hpp"
-
-#endif

include/boost/utility.hpp

@@ -13,6 +13,7 @@
 #include <boost/utility/base_from_member.hpp>
 #include <boost/utility/binary.hpp>
 #include <boost/utility/enable_if.hpp>
+#include <boost/utility/identity_type.hpp>
 #include <boost/checked_delete.hpp>
 #include <boost/next_prior.hpp>
 #include <boost/noncopyable.hpp>

include/boost/utility/addressof.hpp

@@ -1,102 +0,0 @@
-// Copyright (C) 2002 Brad King (brad.king@kitware.com) 
-//                    Douglas Gregor (gregod@cs.rpi.edu)
-//
-// Copyright (C) 2002, 2008 Peter Dimov
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// For more information, see http://www.boost.org
-
-#ifndef BOOST_UTILITY_ADDRESSOF_HPP
-# define BOOST_UTILITY_ADDRESSOF_HPP
-
-# include <boost/config.hpp>
-# include <boost/detail/workaround.hpp>
-
-namespace boost
-{
-
-namespace detail
-{
-
-template<class T> struct addr_impl_ref
-{
-    T & v_;
-
-    inline addr_impl_ref( T & v ): v_( v ) {}
-    inline operator T& () const { return v_; }
-
-private:
-    addr_impl_ref & operator=(const addr_impl_ref &);
-};
-
-template<class T> struct addressof_impl
-{
-    static inline T * f( T & v, long )
-    {
-        return reinterpret_cast<T*>(
-            &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
-    }
-
-    static inline T * f( T * v, int )
-    {
-        return v;
-    }
-};
-
-} // namespace detail
-
-template<class T> T * addressof( T & v )
-{
-#if defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT( 0x610 ) )
-
-    return boost::detail::addressof_impl<T>::f( v, 0 );
-
-#else
-
-    return boost::detail::addressof_impl<T>::f( boost::detail::addr_impl_ref<T>( v ), 0 );
-
-#endif
-}
-
-#if defined( __SUNPRO_CC ) && BOOST_WORKAROUND( __SUNPRO_CC, BOOST_TESTED_AT( 0x590 ) )
-
-namespace detail
-{
-
-template<class T> struct addressof_addp
-{
-    typedef T * type;
-};
-
-} // namespace detail
-
-template< class T, std::size_t N >
-typename detail::addressof_addp< T[N] >::type addressof( T (&t)[N] )
-{
-    return &t;
-}
-
-#endif
-
-// Borland doesn't like casting an array reference to a char reference
-// but these overloads work around the problem.
-#if defined( __BORLANDC__ ) && BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
-template<typename T,std::size_t N>
-T (*addressof(T (&t)[N]))[N]
-{
-   return reinterpret_cast<T(*)[N]>(&t);
-}
-
-template<typename T,std::size_t N>
-const T (*addressof(const T (&t)[N]))[N]
-{
-   return reinterpret_cast<const T(*)[N]>(&t);
-}
-#endif
-
-} // namespace boost
-
-#endif // BOOST_UTILITY_ADDRESSOF_HPP

include/boost/utility/base_from_member.hpp

@@ -1,6 +1,6 @@
 //  boost utility/base_from_member.hpp header file  --------------------------//
 
-//  Copyright 2001, 2003, 2004 Daryle Walker.  Use, modification, and
+//  Copyright 2001, 2003, 2004, 2012 Daryle Walker.  Use, modification, and
 //  distribution are subject to the Boost Software License, Version 1.0.  (See
 //  accompanying file LICENSE_1_0.txt or a copy at
 //  <http://www.boost.org/LICENSE_1_0.txt>.)
@@ -10,10 +10,15 @@
 #ifndef BOOST_UTILITY_BASE_FROM_MEMBER_HPP
 #define BOOST_UTILITY_BASE_FROM_MEMBER_HPP
 
+#include <boost/config.hpp>
 #include <boost/preprocessor/arithmetic/inc.hpp>
 #include <boost/preprocessor/repetition/enum_binary_params.hpp>
 #include <boost/preprocessor/repetition/enum_params.hpp>
 #include <boost/preprocessor/repetition/repeat_from_to.hpp>
+#include <boost/type_traits/is_same.hpp>
+#include <boost/type_traits/remove_cv.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/utility/enable_if.hpp>
 
 
 //  Base-from-member arity configuration macro  ------------------------------//
@@ -53,6 +58,59 @@
 namespace boost
 {
 
+namespace detail
+{
+
+//  Type-unmarking class template  -------------------------------------------//
+
+// Type-trait to get the raw type, i.e. the type without top-level reference nor
+// cv-qualification, from a type expression.  Mainly for function arguments, any
+// reference part is stripped first.
+
+// Contributed by Daryle Walker
+
+template < typename T >
+struct remove_cv_ref
+{
+    typedef typename ::boost::remove_cv<typename
+     ::boost::remove_reference<T>::type>::type  type;
+
+};  // boost::detail::remove_cv_ref
+
+//  Unmarked-type comparison class template  ---------------------------------//
+
+// Type-trait to check if two type expressions have the same raw type.
+
+// Contributed by Daryle Walker, based on a work-around by Luc Danton
+
+template < typename T, typename U >
+struct is_related
+    : public ::boost::is_same<
+     typename ::boost::detail::remove_cv_ref<T>::type,
+     typename ::boost::detail::remove_cv_ref<U>::type >
+{};
+
+//  Enable-if-on-unidentical-unmarked-type class template  -------------------//
+
+// Enable-if on the first two type expressions NOT having the same raw type.
+
+// Contributed by Daryle Walker, based on a work-around by Luc Danton
+
+#ifndef BOOST_NO_CXX11_VARIADIC_TEMPLATES
+template<typename ...T>
+struct enable_if_unrelated
+    : public ::boost::enable_if_c<true>
+{};
+
+template<typename T, typename U, typename ...U2>
+struct enable_if_unrelated<T, U, U2...>
+    : public ::boost::disable_if< ::boost::detail::is_related<T, U> >
+{};
+#endif
+
+}  // namespace boost::detail
+
+
 //  Base-from-member class template  -----------------------------------------//
 
 // Helper to initialize a base object so a derived class can use this
@@ -68,12 +126,38 @@ class base_from_member
 protected:
     MemberType  member;
 
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \
+    !defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS) && \
+    !(defined(__GNUC__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4))
+    template <typename ...T, typename EnableIf = typename
+     ::boost::detail::enable_if_unrelated<base_from_member, T...>::type>
+    explicit BOOST_CONSTEXPR base_from_member( T&& ...x )
+        BOOST_NOEXCEPT_IF( BOOST_NOEXCEPT_EXPR(::new ((void*) 0) MemberType(
+         static_cast<T&&>(x)... )) )  // no std::is_nothrow_constructible...
+        : member( static_cast<T&&>(x)... )     // ...nor std::forward needed
+        {}
+#else
     base_from_member()
         : member()
         {}
 
     BOOST_PP_REPEAT_FROM_TO( 1, BOOST_PP_INC(BOOST_BASE_FROM_MEMBER_MAX_ARITY),
      BOOST_PRIVATE_CTR_DEF, _ )
+#endif
+
+};  // boost::base_from_member
+
+template < typename MemberType, int UniqueID >
+class base_from_member<MemberType&, UniqueID>
+{
+protected:
+    MemberType& member;
+
+    explicit BOOST_CONSTEXPR base_from_member( MemberType& x )
+        BOOST_NOEXCEPT
+        : member( x )
+        {}
 
 };  // boost::base_from_member
 

include/boost/utility/declval.hpp

@@ -1,44 +0,0 @@
-//  common_type.hpp  ---------------------------------------------------------//
-
-//  Copyright 2010 Vicente J. Botet Escriba
-
-//  Distributed under the Boost Software License, Version 1.0.
-//  See http://www.boost.org/LICENSE_1_0.txt
-
-#ifndef BOOST_TYPE_TRAITS_EXT_DECLVAL__HPP
-#define BOOST_TYPE_TRAITS_EXT_DECLVAL__HPP
-
-#include <boost/config.hpp>
-
-//----------------------------------------------------------------------------//
-
-#include <boost/type_traits/add_rvalue_reference.hpp>
-
-//----------------------------------------------------------------------------//
-//                                                                            //
-//                           C++03 implementation of                          //
-//                          Written by Vicente J. Botet Escriba               //
-//~ 20.3.4 Function template declval [declval]
-//~ 1 The library provides the function template declval to simplify the definition of expressions which occur as
-//~ unevaluated operands.
-//~ 2 Remarks: If this function is used, the program is ill-formed.
-//~ 3 Remarks: The template parameter T of declval may be an incomplete type.
-//~ [ Example:
-
-//~ template <class To, class From>
-//~ decltype(static_cast<To>(declval<From>())) convert(From&&);
-
-//~ declares a function template convert which only participats in overloading if the type From can be
-//~ explicitly converted to type To. For another example see class template common_type (20.7.6.6). <20>end
-//~ example ]
-//                                                                            //
-//----------------------------------------------------------------------------//
-
-namespace boost {
-
-    template <typename T>
-    typename add_rvalue_reference<T>::type declval(); //noexcept; // as unevaluated operand
-
-}  // namespace boost
-
-#endif  // BOOST_TYPE_TRAITS_EXT_DECLVAL__HPP

include/boost/utility/detail/result_of_iterate.hpp

@@ -5,6 +5,11 @@
 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
 //  http://www.boost.org/LICENSE_1_0.txt)
 
+//  Copyright Daniel Walker, Eric Niebler, Michel Morin 2008-2012.
+//  Use, modification and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or
+//  copy at http://www.boost.org/LICENSE_1_0.txt)
+
 // For more information, see http://www.boost.org/libs/utility
 #if !defined(BOOST_PP_IS_ITERATING)
 # error Boost result_of - do not include this file!
@@ -18,31 +23,44 @@
 #endif
 
 #if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
-template<typename F BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of<F(BOOST_RESULT_OF_ARGS)>
     : mpl::if_<
           mpl::or_< is_pointer<F>, is_member_function_pointer<F> >
         , boost::detail::tr1_result_of_impl<
-            typename remove_cv<F>::type, 
-            typename remove_cv<F>::type(BOOST_RESULT_OF_ARGS), 
+            typename remove_cv<F>::type,
+            typename remove_cv<F>::type(BOOST_RESULT_OF_ARGS),
             (boost::detail::has_result_type<F>::value)>
         , boost::detail::tr1_result_of_impl<
             F,
-            F(BOOST_RESULT_OF_ARGS), 
+            F(BOOST_RESULT_OF_ARGS),
             (boost::detail::has_result_type<F>::value)> >::type { };
 #endif
 
-#if !defined(BOOST_NO_DECLTYPE) && defined(BOOST_RESULT_OF_USE_DECLTYPE)
+#ifdef BOOST_RESULT_OF_USE_DECLTYPE
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
+struct result_of<F(BOOST_RESULT_OF_ARGS)>
+    : detail::cpp0x_result_of<F(BOOST_RESULT_OF_ARGS)> { };
+#endif // BOOST_RESULT_OF_USE_DECLTYPE
 
-// Uses declval following N3225 20.7.7.6 when F is not a pointer.
-template<typename F BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
-struct result_of<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T))>
+#ifdef BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
+struct result_of<F(BOOST_RESULT_OF_ARGS)>
+    : mpl::if_<mpl::or_<detail::has_result_type<F>, detail::has_result<F> >,
+               tr1_result_of<F(BOOST_RESULT_OF_ARGS)>,
+               detail::cpp0x_result_of<F(BOOST_RESULT_OF_ARGS)> >::type { };
+#endif // BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
+
+#if defined(BOOST_RESULT_OF_USE_DECLTYPE) || defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK)
+
+namespace detail {
+
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
+struct cpp0x_result_of<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T))>
     : mpl::if_<
-          mpl::or_< is_pointer<F>, is_member_function_pointer<F> >
+          is_member_function_pointer<F>
         , detail::tr1_result_of_impl<
-            typename remove_cv<F>::type, 
+            typename remove_cv<F>::type,
             typename remove_cv<F>::type(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)), false
           >
         , detail::cpp0x_result_of_impl<
@@ -51,55 +69,119 @@ struct result_of<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T))>
       >::type
 {};
 
-namespace detail {
+#ifdef BOOST_NO_SFINAE_EXPR
 
-template<typename F BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
-struct cpp0x_result_of_impl<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T))>
+template<typename F>
+struct BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION());
+
+template<typename R BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(), typename T)>
+struct BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<R(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(), T))> {
+    R operator()(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(), T)) const;
+    typedef result_of_private_type const &(*pfn_t)(...);
+    operator pfn_t() const volatile;
+};
+
+template<typename F>
+struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION());
+
+template<typename F>
+struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<F *>
+  : BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<F>
+{};
+
+template<typename F>
+struct BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<F &>
+  : BOOST_PP_CAT(result_of_callable_fun_2_, BOOST_PP_ITERATION())<F>
+{};
+
+template<typename F>
+struct BOOST_PP_CAT(result_of_select_call_wrapper_type_, BOOST_PP_ITERATION())
+  : mpl::eval_if<
+        is_class<typename remove_reference<F>::type>,
+        result_of_wrap_callable_class<F>,
+        mpl::identity<BOOST_PP_CAT(result_of_callable_fun_, BOOST_PP_ITERATION())<typename remove_cv<F>::type> >
+    >
+{};
+
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(), typename T)>
+struct BOOST_PP_CAT(result_of_is_callable_, BOOST_PP_ITERATION()) {
+    typedef typename BOOST_PP_CAT(result_of_select_call_wrapper_type_, BOOST_PP_ITERATION())<F>::type wrapper_t;
+    static const bool value = (
+        sizeof(result_of_no_type) == sizeof(detail::result_of_is_private_type(
+            (boost::declval<wrapper_t>()(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_ITERATION(), boost::declval<T, >() BOOST_PP_INTERCEPT)), result_of_weird_type())
+        ))
+    );
+    typedef mpl::bool_<value> type;
+};
+
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
+struct cpp0x_result_of_impl<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)), true>
+    : lazy_enable_if<
+          BOOST_PP_CAT(result_of_is_callable_, BOOST_PP_ITERATION())<F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(), T)>
+        , cpp0x_result_of_impl<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)), false>
+      >
+{};
+
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
+struct cpp0x_result_of_impl<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)), false>
 {
   typedef decltype(
     boost::declval<F>()(
-      BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_ITERATION(), declval<T, >() BOOST_PP_INTERCEPT)
+      BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_ITERATION(), boost::declval<T, >() BOOST_PP_INTERCEPT)
     )
   ) type;
 };
 
-} // namespace detail 
+#else // BOOST_NO_SFINAE_EXPR
 
-#else // defined(BOOST_NO_DECLTYPE)
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
+struct cpp0x_result_of_impl<F(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)),
+                            typename result_of_always_void<decltype(
+                                boost::declval<F>()(
+                                    BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_ITERATION(), boost::declval<T, >() BOOST_PP_INTERCEPT)
+                                )
+                            )>::type> {
+  typedef decltype(
+    boost::declval<F>()(
+      BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_ITERATION(), boost::declval<T, >() BOOST_PP_INTERCEPT)
+    )
+  ) type;
+};
+
+#endif // BOOST_NO_SFINAE_EXPR
+
+} // namespace detail
+
+#else // defined(BOOST_RESULT_OF_USE_DECLTYPE) || defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK)
 
 #if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
-template<typename F BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
+template<typename F BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct result_of<F(BOOST_RESULT_OF_ARGS)>
     : tr1_result_of<F(BOOST_RESULT_OF_ARGS)> { };
 #endif
 
-#endif // defined(BOOST_NO_DECLTYPE)
+#endif // defined(BOOST_RESULT_OF_USE_DECLTYPE)
 
 #undef BOOST_RESULT_OF_ARGS
 
-#if BOOST_PP_ITERATION() >= 1 
+#if BOOST_PP_ITERATION() >= 1
 
 namespace detail {
 
-template<typename R,  typename FArgs BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
+template<typename R,  typename FArgs BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of_impl<R (*)(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)), FArgs, false>
 {
   typedef R type;
 };
 
-template<typename R,  typename FArgs BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
+template<typename R,  typename FArgs BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of_impl<R (&)(BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),T)), FArgs, false>
 {
   typedef R type;
 };
 
 #if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
-template<typename R, typename FArgs BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
+template<typename R, typename FArgs BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of_impl<R (T0::*)
                      (BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_PP_ITERATION(),T)),
                  FArgs, false>
@@ -107,8 +189,7 @@ struct tr1_result_of_impl<R (T0::*)
   typedef R type;
 };
 
-template<typename R, typename FArgs BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
+template<typename R, typename FArgs BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of_impl<R (T0::*)
                      (BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_PP_ITERATION(),T))
                      const,
@@ -117,8 +198,7 @@ struct tr1_result_of_impl<R (T0::*)
   typedef R type;
 };
 
-template<typename R, typename FArgs BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
+template<typename R, typename FArgs BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of_impl<R (T0::*)
                      (BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_PP_ITERATION(),T))
                      volatile,
@@ -127,8 +207,7 @@ struct tr1_result_of_impl<R (T0::*)
   typedef R type;
 };
 
-template<typename R, typename FArgs BOOST_PP_COMMA_IF(BOOST_PP_ITERATION())
-         BOOST_PP_ENUM_PARAMS(BOOST_PP_ITERATION(),typename T)>
+template<typename R, typename FArgs BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_ITERATION(),typename T)>
 struct tr1_result_of_impl<R (T0::*)
                      (BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_PP_ITERATION(),T))
                      const volatile,

include/boost/utility/enable_if.hpp

@@ -1,119 +0,0 @@
-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-//             Jeremiah Willcock (jewillco at osl.iu.edu)
-//             Andrew Lumsdaine (lums at osl.iu.edu)
-
-
-#ifndef BOOST_UTILITY_ENABLE_IF_HPP
-#define BOOST_UTILITY_ENABLE_IF_HPP
-
-#include "boost/config.hpp"
-
-// Even the definition of enable_if causes problems on some compilers,
-// so it's macroed out for all compilers that do not support SFINAE
-
-#ifndef BOOST_NO_SFINAE
-
-namespace boost
-{
- 
-  template <bool B, class T = void>
-  struct enable_if_c {
-    typedef T type;
-  };
-
-  template <class T>
-  struct enable_if_c<false, T> {};
-
-  template <class Cond, class T = void> 
-  struct enable_if : public enable_if_c<Cond::value, T> {};
-
-  template <bool B, class T>
-  struct lazy_enable_if_c {
-    typedef typename T::type type;
-  };
-
-  template <class T>
-  struct lazy_enable_if_c<false, T> {};
-
-  template <class Cond, class T> 
-  struct lazy_enable_if : public lazy_enable_if_c<Cond::value, T> {};
-
-
-  template <bool B, class T = void>
-  struct disable_if_c {
-    typedef T type;
-  };
-
-  template <class T>
-  struct disable_if_c<true, T> {};
-
-  template <class Cond, class T = void> 
-  struct disable_if : public disable_if_c<Cond::value, T> {};
-
-  template <bool B, class T>
-  struct lazy_disable_if_c {
-    typedef typename T::type type;
-  };
-
-  template <class T>
-  struct lazy_disable_if_c<true, T> {};
-
-  template <class Cond, class T> 
-  struct lazy_disable_if : public lazy_disable_if_c<Cond::value, T> {};
-
-} // namespace boost
-
-#else
-
-namespace boost {
-
-  namespace detail { typedef void enable_if_default_T; }
-
-  template <typename T>
-  struct enable_if_does_not_work_on_this_compiler;
-
-  template <bool B, class T = detail::enable_if_default_T>
-  struct enable_if_c : enable_if_does_not_work_on_this_compiler<T>
-  { };
-
-  template <bool B, class T = detail::enable_if_default_T> 
-  struct disable_if_c : enable_if_does_not_work_on_this_compiler<T>
-  { };
-
-  template <bool B, class T = detail::enable_if_default_T> 
-  struct lazy_enable_if_c : enable_if_does_not_work_on_this_compiler<T>
-  { };
-
-  template <bool B, class T = detail::enable_if_default_T> 
-  struct lazy_disable_if_c : enable_if_does_not_work_on_this_compiler<T>
-  { };
-
-  template <class Cond, class T = detail::enable_if_default_T> 
-  struct enable_if : enable_if_does_not_work_on_this_compiler<T>
-  { };
-
-  template <class Cond, class T = detail::enable_if_default_T> 
-  struct disable_if : enable_if_does_not_work_on_this_compiler<T>
-  { };
-
-  template <class Cond, class T = detail::enable_if_default_T> 
-  struct lazy_enable_if : enable_if_does_not_work_on_this_compiler<T>
-  { };
-
-  template <class Cond, class T = detail::enable_if_default_T> 
-  struct lazy_disable_if : enable_if_does_not_work_on_this_compiler<T>
-  { };
-
-} // namespace boost
-
-#endif // BOOST_NO_SFINAE
-
-#endif

include/boost/utility/identity_type.hpp

@@ -0,0 +1,46 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/utility/identity_type
+
+/** @file
+Wrap type expressions with round parenthesis so they can be passed to macros
+even if they contain commas.
+*/
+
+#ifndef BOOST_IDENTITY_TYPE_HPP_
+#define BOOST_IDENTITY_TYPE_HPP_
+
+#include <boost/type_traits/function_traits.hpp>
+
+/**
+@brief This macro allows to wrap the specified type expression within extra
+round parenthesis so the type can be passed as a single macro parameter even if
+it contains commas (not already wrapped within round parenthesis).
+
+@Params
+@Param{parenthesized_type,
+The type expression to be passed as macro parameter wrapped by a single set
+of round parenthesis <c>(...)</c>.
+This type expression can contain an arbitrary number of commas.
+}
+@EndParams
+
+This macro works on any C++03 compiler (it does not use variadic macros).
+
+This macro must be prefixed by <c>typename</c> when used within templates.
+Note that the compiler will not be able to automatically determine function
+template parameters when they are wrapped with this macro (these parameters
+need to be explicitly specified when calling the function template).
+
+On some compilers (like GCC), using this macro on abstract types requires to
+add and remove a reference to the specified type.
+*/
+#define BOOST_IDENTITY_TYPE(parenthesized_type) \
+    /* must NOT prefix this with `::` to work with parenthesized syntax */ \
+    boost::function_traits< void parenthesized_type >::arg1_type
+
+#endif // #include guard
+

include/boost/utility/in_place_factory.hpp

@@ -48,15 +48,13 @@ public:
   {}
 
   template<class T>
-  void* apply(void* address
-      BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)) const
+  void* apply(void* address) const
   {
     return new(address) T( BOOST_PP_ENUM_PARAMS(N, m_a) );
   }
 
   template<class T>
-  void* apply(void* address, std::size_t n
-      BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)) const
+  void* apply(void* address, std::size_t n) const
   {
     for(char* next = address = this->BOOST_NESTED_TEMPLATE apply<T>(address);
         !! --n;)

include/boost/utility/result_of.hpp

@@ -10,24 +10,57 @@
 #define BOOST_RESULT_OF_HPP
 
 #include <boost/config.hpp>
-#include <boost/preprocessor/iteration/iterate.hpp> 
-#include <boost/preprocessor/punctuation/comma_if.hpp> 
-#include <boost/preprocessor/repetition/enum_params.hpp> 
-#include <boost/preprocessor/repetition/enum_binary_params.hpp> 
-#include <boost/preprocessor/repetition/enum_shifted_params.hpp> 
-#include <boost/preprocessor/facilities/intercept.hpp> 
+#include <boost/preprocessor/cat.hpp>
+#include <boost/preprocessor/iteration/iterate.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/enum_trailing_params.hpp>
+#include <boost/preprocessor/repetition/enum_binary_params.hpp>
+#include <boost/preprocessor/repetition/enum_shifted_params.hpp>
+#include <boost/preprocessor/facilities/intercept.hpp>
 #include <boost/detail/workaround.hpp>
 #include <boost/mpl/has_xxx.hpp>
 #include <boost/mpl/if.hpp>
+#include <boost/mpl/eval_if.hpp>
 #include <boost/mpl/bool.hpp>
+#include <boost/mpl/identity.hpp>
 #include <boost/mpl/or.hpp>
+#include <boost/type_traits/is_class.hpp>
 #include <boost/type_traits/is_pointer.hpp>
 #include <boost/type_traits/is_member_function_pointer.hpp>
 #include <boost/type_traits/remove_cv.hpp>
+#include <boost/type_traits/remove_reference.hpp>
 #include <boost/utility/declval.hpp>
+#include <boost/utility/enable_if.hpp>
 
 #ifndef BOOST_RESULT_OF_NUM_ARGS
-#  define BOOST_RESULT_OF_NUM_ARGS 10
+#  define BOOST_RESULT_OF_NUM_ARGS 16
+#endif
+
+// Use the decltype-based version of result_of by default if the compiler
+// supports N3276 <http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2011/n3276.pdf>.
+// The user can force the choice by defining BOOST_RESULT_OF_USE_DECLTYPE,
+// BOOST_RESULT_OF_USE_TR1, or BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK but not more than one!
+#if (defined(BOOST_RESULT_OF_USE_DECLTYPE) && defined(BOOST_RESULT_OF_USE_TR1)) || \
+    (defined(BOOST_RESULT_OF_USE_DECLTYPE) && defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK)) || \
+    (defined(BOOST_RESULT_OF_USE_TR1) && defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK))
+#  error More than one of BOOST_RESULT_OF_USE_DECLTYPE, BOOST_RESULT_OF_USE_TR1 and \
+  BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK cannot be defined at the same time.
+#endif
+
+#if defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK) && defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
+#  error Cannot fallback to decltype if BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE is not defined.
+#endif
+
+#ifndef BOOST_RESULT_OF_USE_TR1
+#  ifndef BOOST_RESULT_OF_USE_DECLTYPE
+#    ifndef BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
+#      ifndef BOOST_NO_CXX11_DECLTYPE_N3276 // this implies !defined(BOOST_NO_CXX11_DECLTYPE)
+#        define BOOST_RESULT_OF_USE_DECLTYPE
+#      else
+#        define BOOST_RESULT_OF_USE_TR1
+#      endif
+#    endif
+#  endif
 #endif
 
 namespace boost {
@@ -35,13 +68,87 @@ namespace boost {
 template<typename F> struct result_of;
 template<typename F> struct tr1_result_of; // a TR1-style implementation of result_of
 
-#if !defined(BOOST_NO_SFINAE) && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+#if !defined(BOOST_NO_SFINAE)
 namespace detail {
 
 BOOST_MPL_HAS_XXX_TRAIT_DEF(result_type)
 
+// Work around a nvcc bug by only defining has_result when it's needed.
+#ifdef BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK
+BOOST_MPL_HAS_XXX_TEMPLATE_DEF(result)
+#endif
+
 template<typename F, typename FArgs, bool HasResultType> struct tr1_result_of_impl;
-template<typename F> struct cpp0x_result_of_impl;
+
+template<typename F> struct cpp0x_result_of;
+
+#ifdef BOOST_NO_SFINAE_EXPR
+
+// There doesn't seem to be any other way to turn this off such that the presence of
+// the user-defined operator,() below doesn't cause spurious warning all over the place,
+// so unconditionally turn it off.
+#if BOOST_MSVC
+#  pragma warning(disable: 4913) // user defined binary operator ',' exists but no overload could convert all operands, default built-in binary operator ',' used
+#endif
+
+struct result_of_private_type {};
+
+struct result_of_weird_type {
+  friend result_of_private_type operator,(result_of_private_type, result_of_weird_type);
+};
+
+typedef char result_of_yes_type;      // sizeof(result_of_yes_type) == 1
+typedef char (&result_of_no_type)[2]; // sizeof(result_of_no_type)  == 2
+
+template<typename T>
+result_of_no_type result_of_is_private_type(T const &);
+result_of_yes_type result_of_is_private_type(result_of_private_type);
+
+template<typename C>
+struct result_of_callable_class : C {
+    result_of_callable_class();
+    typedef result_of_private_type const &(*pfn_t)(...);
+    operator pfn_t() const volatile;
+};
+
+template<typename C>
+struct result_of_wrap_callable_class {
+  typedef result_of_callable_class<C> type;
+};
+
+template<typename C>
+struct result_of_wrap_callable_class<C const> {
+  typedef result_of_callable_class<C> const type;
+};
+
+template<typename C>
+struct result_of_wrap_callable_class<C volatile> {
+  typedef result_of_callable_class<C> volatile type;
+};
+
+template<typename C>
+struct result_of_wrap_callable_class<C const volatile> {
+  typedef result_of_callable_class<C> const volatile type;
+};
+
+template<typename C>
+struct result_of_wrap_callable_class<C &> {
+  typedef typename result_of_wrap_callable_class<C>::type &type;
+};
+
+template<typename F, bool TestCallability = true> struct cpp0x_result_of_impl;
+
+#else // BOOST_NO_SFINAE_EXPR
+
+template<typename T>
+struct result_of_always_void
+{
+  typedef void type;
+};
+
+template<typename F, typename Enable = void> struct cpp0x_result_of_impl {};
+
+#endif // BOOST_NO_SFINAE_EXPR
 
 template<typename F>
 struct result_of_void_impl

include/boost/utility/string_ref.hpp

@@ -0,0 +1,536 @@
+/*
+   Copyright (c) Marshall Clow 2012-2015.
+
+   Distributed under the Boost Software License, Version 1.0. (See accompanying
+   file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+    For more information, see http://www.boost.org
+
+    Based on the StringRef implementation in LLVM (http://llvm.org) and
+    N3422 by Jeffrey Yasskin
+        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html
+
+*/
+
+#ifndef BOOST_STRING_REF_HPP
+#define BOOST_STRING_REF_HPP
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+#include <boost/utility/string_ref_fwd.hpp>
+#include <boost/throw_exception.hpp>
+
+#include <cstddef>
+#include <stdexcept>
+#include <algorithm>
+#include <iterator>
+#include <string>
+#include <iosfwd>
+
+namespace boost {
+
+    namespace detail {
+    //  A helper functor because sometimes we don't have lambdas
+        template <typename charT, typename traits>
+        class string_ref_traits_eq {
+        public:
+            string_ref_traits_eq ( charT ch ) : ch_(ch) {}
+            bool operator () ( charT val ) const { return traits::eq ( ch_, val ); }
+            charT ch_;
+            };
+        }
+
+    template<typename charT, typename traits>
+    class basic_string_ref {
+    public:
+        // types
+        typedef charT value_type;
+        typedef const charT* pointer;
+        typedef const charT& reference;
+        typedef const charT& const_reference;
+        typedef pointer const_iterator; // impl-defined
+        typedef const_iterator iterator;
+        typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+        typedef const_reverse_iterator reverse_iterator;
+        typedef std::size_t size_type;
+        typedef std::ptrdiff_t difference_type;
+        static BOOST_CONSTEXPR_OR_CONST size_type npos = size_type(-1);
+
+        // construct/copy
+        BOOST_CONSTEXPR basic_string_ref ()
+            : ptr_(NULL), len_(0) {}
+
+        BOOST_CONSTEXPR basic_string_ref (const basic_string_ref &rhs)
+            : ptr_(rhs.ptr_), len_(rhs.len_) {}
+
+        basic_string_ref& operator=(const basic_string_ref &rhs) {
+            ptr_ = rhs.ptr_;
+            len_ = rhs.len_;
+            return *this;
+            }
+
+        basic_string_ref(const charT* str)
+            : ptr_(str), len_(traits::length(str)) {}
+
+        template<typename Allocator>
+        basic_string_ref(const std::basic_string<charT, traits, Allocator>& str)
+            : ptr_(str.data()), len_(str.length()) {}
+
+        BOOST_CONSTEXPR basic_string_ref(const charT* str, size_type len)
+            : ptr_(str), len_(len) {}
+
+#ifndef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+        template<typename Allocator>
+        explicit operator std::basic_string<charT, traits, Allocator>() const {
+            return std::basic_string<charT, traits, Allocator> ( begin(), end());
+            }
+#endif
+
+        std::basic_string<charT, traits> to_string () const {
+            return std::basic_string<charT, traits> ( begin(), end());
+            }
+
+        // iterators
+        BOOST_CONSTEXPR const_iterator   begin() const { return ptr_; }
+        BOOST_CONSTEXPR const_iterator  cbegin() const { return ptr_; }
+        BOOST_CONSTEXPR const_iterator     end() const { return ptr_ + len_; }
+        BOOST_CONSTEXPR const_iterator    cend() const { return ptr_ + len_; }
+                const_reverse_iterator  rbegin() const { return const_reverse_iterator (end()); }
+                const_reverse_iterator crbegin() const { return const_reverse_iterator (end()); }
+                const_reverse_iterator    rend() const { return const_reverse_iterator (begin()); }
+                const_reverse_iterator   crend() const { return const_reverse_iterator (begin()); }
+
+        // capacity
+        BOOST_CONSTEXPR size_type size()     const { return len_; }
+        BOOST_CONSTEXPR size_type length()   const { return len_; }
+        BOOST_CONSTEXPR size_type max_size() const { return len_; }
+        BOOST_CONSTEXPR bool empty()         const { return len_ == 0; }
+
+        // element access
+        BOOST_CONSTEXPR const charT& operator[](size_type pos) const { return ptr_[pos]; }
+
+        const charT& at(size_t pos) const {
+            if ( pos >= len_ )
+                BOOST_THROW_EXCEPTION( std::out_of_range ( "boost::string_ref::at" ) );
+            return ptr_[pos];
+            }
+
+        BOOST_CONSTEXPR const charT& front() const { return ptr_[0]; }
+        BOOST_CONSTEXPR const charT& back()  const { return ptr_[len_-1]; }
+        BOOST_CONSTEXPR const charT* data()  const { return ptr_; }
+
+        // modifiers
+        void clear() { len_ = 0; }
+        void remove_prefix(size_type n) {
+            if ( n > len_ )
+                n = len_;
+            ptr_ += n;
+            len_ -= n;
+            }
+
+        void remove_suffix(size_type n) {
+            if ( n > len_ )
+                n = len_;
+            len_ -= n;
+            }
+
+
+        // basic_string_ref string operations
+        basic_string_ref substr(size_type pos, size_type n=npos) const {
+            if ( pos > size())
+                BOOST_THROW_EXCEPTION( std::out_of_range ( "string_ref::substr" ) );
+            if ( n == npos || pos + n > size())
+                n = size () - pos;
+            return basic_string_ref ( data() + pos, n );
+            }
+
+        int compare(basic_string_ref x) const {
+            const int cmp = traits::compare ( ptr_, x.ptr_, (std::min)(len_, x.len_));
+            return cmp != 0 ? cmp : ( len_ == x.len_ ? 0 : len_ < x.len_ ? -1 : 1 );
+            }
+
+        bool starts_with(charT c) const { return !empty() && traits::eq ( c, front()); }
+        bool starts_with(basic_string_ref x) const {
+            return len_ >= x.len_ && traits::compare ( ptr_, x.ptr_, x.len_ ) == 0;
+            }
+
+        bool ends_with(charT c) const { return !empty() && traits::eq ( c, back()); }
+        bool ends_with(basic_string_ref x) const {
+            return len_ >= x.len_ && traits::compare ( ptr_ + len_ - x.len_, x.ptr_, x.len_ ) == 0;
+            }
+
+        size_type find(basic_string_ref s) const {
+            const_iterator iter = std::search ( this->cbegin (), this->cend (),
+                                                s.cbegin (), s.cend (), traits::eq );
+            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
+            }
+
+        size_type find(charT c) const {
+            const_iterator iter = std::find_if ( this->cbegin (), this->cend (),
+                                    detail::string_ref_traits_eq<charT, traits> ( c ));
+            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
+            }
+
+        size_type rfind(basic_string_ref s) const {
+            const_reverse_iterator iter = std::search ( this->crbegin (), this->crend (),
+                                                s.crbegin (), s.crend (), traits::eq );
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter );
+            }
+
+        size_type rfind(charT c) const {
+            const_reverse_iterator iter = std::find_if ( this->crbegin (), this->crend (),
+                                    detail::string_ref_traits_eq<charT, traits> ( c ));
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter );
+            }
+
+        size_type find_first_of(charT c) const { return  find (c); }
+        size_type find_last_of (charT c) const { return rfind (c); }
+
+        size_type find_first_of(basic_string_ref s) const {
+            const_iterator iter = std::find_first_of
+                ( this->cbegin (), this->cend (), s.cbegin (), s.cend (), traits::eq );
+            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
+            }
+
+        size_type find_last_of(basic_string_ref s) const {
+            const_reverse_iterator iter = std::find_first_of
+                ( this->crbegin (), this->crend (), s.cbegin (), s.cend (), traits::eq );
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter);
+            }
+
+        size_type find_first_not_of(basic_string_ref s) const {
+            const_iterator iter = find_not_of ( this->cbegin (), this->cend (), s );
+            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
+            }
+
+        size_type find_first_not_of(charT c) const {
+            for ( const_iterator iter = this->cbegin (); iter != this->cend (); ++iter )
+                if ( !traits::eq ( c, *iter ))
+                    return std::distance ( this->cbegin (), iter );
+            return npos;
+            }
+
+        size_type find_last_not_of(basic_string_ref s) const {
+            const_reverse_iterator iter = find_not_of ( this->crbegin (), this->crend (), s );
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter );
+            }
+
+        size_type find_last_not_of(charT c) const {
+            for ( const_reverse_iterator iter = this->crbegin (); iter != this->crend (); ++iter )
+                if ( !traits::eq ( c, *iter ))
+                    return reverse_distance ( this->crbegin (), iter );
+            return npos;
+            }
+
+    private:
+        template <typename r_iter>
+        size_type reverse_distance ( r_iter first, r_iter last ) const {
+            return len_ - 1 - std::distance ( first, last );
+            }
+
+        template <typename Iterator>
+        Iterator find_not_of ( Iterator first, Iterator last, basic_string_ref s ) const {
+            for ( ; first != last ; ++first )
+                if ( 0 == traits::find ( s.ptr_, s.len_, *first ))
+                    return first;
+            return last;
+            }
+
+
+
+        const charT *ptr_;
+        std::size_t len_;
+        };
+
+
+//  Comparison operators
+//  Equality
+    template<typename charT, typename traits>
+    inline bool operator==(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
+        if ( x.size () != y.size ()) return false;
+        return x.compare(y) == 0;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator==(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
+        return x == basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator==(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) == y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator==(basic_string_ref<charT, traits> x, const charT * y) {
+        return x == basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator==(const charT * x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) == y;
+        }
+
+//  Inequality
+    template<typename charT, typename traits>
+    inline bool operator!=(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
+        if ( x.size () != y.size ()) return true;
+        return x.compare(y) != 0;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator!=(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
+        return x != basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator!=(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) != y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator!=(basic_string_ref<charT, traits> x, const charT * y) {
+        return x != basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator!=(const charT * x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) != y;
+        }
+
+//  Less than
+    template<typename charT, typename traits>
+    inline bool operator<(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
+        return x.compare(y) < 0;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator<(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
+        return x < basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator<(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) < y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator<(basic_string_ref<charT, traits> x, const charT * y) {
+        return x < basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator<(const charT * x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) < y;
+        }
+
+//  Greater than
+    template<typename charT, typename traits>
+    inline bool operator>(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
+        return x.compare(y) > 0;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator>(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
+        return x > basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator>(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) > y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator>(basic_string_ref<charT, traits> x, const charT * y) {
+        return x > basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator>(const charT * x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) > y;
+        }
+
+//  Less than or equal to
+    template<typename charT, typename traits>
+    inline bool operator<=(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
+        return x.compare(y) <= 0;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator<=(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
+        return x <= basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator<=(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) <= y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator<=(basic_string_ref<charT, traits> x, const charT * y) {
+        return x <= basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator<=(const charT * x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) <= y;
+        }
+
+//  Greater than or equal to
+    template<typename charT, typename traits>
+    inline bool operator>=(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
+        return x.compare(y) >= 0;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator>=(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
+        return x >= basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator>=(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) >= y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator>=(basic_string_ref<charT, traits> x, const charT * y) {
+        return x >= basic_string_ref<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator>=(const charT * x, basic_string_ref<charT, traits> y) {
+        return basic_string_ref<charT, traits>(x) >= y;
+        }
+
+    namespace detail {
+
+        template<class charT, class traits>
+        inline void insert_fill_chars(std::basic_ostream<charT, traits>& os, std::size_t n) {
+            enum { chunk_size = 8 };
+            charT fill_chars[chunk_size];
+            std::fill_n(fill_chars, static_cast< std::size_t >(chunk_size), os.fill());
+            for (; n >= chunk_size && os.good(); n -= chunk_size)
+                os.write(fill_chars, static_cast< std::size_t >(chunk_size));
+            if (n > 0 && os.good())
+                os.write(fill_chars, n);
+            }
+
+        template<class charT, class traits>
+        void insert_aligned(std::basic_ostream<charT, traits>& os, const basic_string_ref<charT,traits>& str) {
+            const std::size_t size = str.size();
+            const std::size_t alignment_size = static_cast< std::size_t >(os.width()) - size;
+            const bool align_left = (os.flags() & std::basic_ostream<charT, traits>::adjustfield) == std::basic_ostream<charT, traits>::left;
+            if (!align_left) {
+                detail::insert_fill_chars(os, alignment_size);
+                if (os.good())
+                    os.write(str.data(), size);
+                }
+            else {
+                os.write(str.data(), size);
+                if (os.good())
+                    detail::insert_fill_chars(os, alignment_size);
+                }
+            }
+
+        } // namespace detail
+
+    // Inserter
+    template<class charT, class traits>
+    inline std::basic_ostream<charT, traits>&
+    operator<<(std::basic_ostream<charT, traits>& os, const basic_string_ref<charT,traits>& str) {
+        if (os.good()) {
+            const std::size_t size = str.size();
+            const std::size_t w = static_cast< std::size_t >(os.width());
+            if (w <= size)
+                os.write(str.data(), size);
+            else
+                detail::insert_aligned(os, str);
+            os.width(0);
+            }
+        return os;
+        }
+
+#if 0
+    // numeric conversions
+    //
+    //  These are short-term implementations.
+    //  In a production environment, I would rather avoid the copying.
+    //
+    inline int stoi (string_ref str, size_t* idx=0, int base=10) {
+        return std::stoi ( std::string(str), idx, base );
+        }
+
+    inline long stol (string_ref str, size_t* idx=0, int base=10) {
+        return std::stol ( std::string(str), idx, base );
+        }
+
+    inline unsigned long stoul (string_ref str, size_t* idx=0, int base=10) {
+        return std::stoul ( std::string(str), idx, base );
+        }
+
+    inline long long stoll (string_ref str, size_t* idx=0, int base=10) {
+        return std::stoll ( std::string(str), idx, base );
+        }
+
+    inline unsigned long long stoull (string_ref str, size_t* idx=0, int base=10) {
+        return std::stoull ( std::string(str), idx, base );
+        }
+
+    inline float stof (string_ref str, size_t* idx=0) {
+        return std::stof ( std::string(str), idx );
+        }
+
+    inline double stod (string_ref str, size_t* idx=0) {
+        return std::stod ( std::string(str), idx );
+        }
+
+    inline long double stold (string_ref str, size_t* idx=0)  {
+        return std::stold ( std::string(str), idx );
+        }
+
+    inline int  stoi (wstring_ref str, size_t* idx=0, int base=10) {
+        return std::stoi ( std::wstring(str), idx, base );
+        }
+
+    inline long stol (wstring_ref str, size_t* idx=0, int base=10) {
+        return std::stol ( std::wstring(str), idx, base );
+        }
+
+    inline unsigned long stoul (wstring_ref str, size_t* idx=0, int base=10) {
+        return std::stoul ( std::wstring(str), idx, base );
+        }
+
+    inline long long stoll (wstring_ref str, size_t* idx=0, int base=10) {
+        return std::stoll ( std::wstring(str), idx, base );
+        }
+
+    inline unsigned long long stoull (wstring_ref str, size_t* idx=0, int base=10) {
+        return std::stoull ( std::wstring(str), idx, base );
+        }
+
+    inline float  stof (wstring_ref str, size_t* idx=0) {
+        return std::stof ( std::wstring(str), idx );
+        }
+
+    inline double stod (wstring_ref str, size_t* idx=0) {
+        return std::stod ( std::wstring(str), idx );
+        }
+
+    inline long double stold (wstring_ref str, size_t* idx=0) {
+        return std::stold ( std::wstring(str), idx );
+        }
+#endif
+
+}
+
+#if 0
+namespace std {
+    // Hashing
+    template<> struct hash<boost::string_ref>;
+    template<> struct hash<boost::u16string_ref>;
+    template<> struct hash<boost::u32string_ref>;
+    template<> struct hash<boost::wstring_ref>;
+}
+#endif
+
+#endif

include/boost/utility/string_ref_fwd.hpp

@@ -0,0 +1,37 @@
+/*
+   Copyright (c) Marshall Clow 2012-2012.
+
+   Distributed under the Boost Software License, Version 1.0. (See accompanying
+   file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+    For more information, see http://www.boost.org
+
+    Based on the StringRef implementation in LLVM (http://llvm.org) and
+    N3422 by Jeffrey Yasskin
+        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html
+
+*/
+
+#ifndef BOOST_STRING_REF_FWD_HPP
+#define BOOST_STRING_REF_FWD_HPP
+
+#include <boost/config.hpp>
+#include <string>
+
+namespace boost {
+
+    template<typename charT, typename traits = std::char_traits<charT> > class basic_string_ref;
+    typedef basic_string_ref<char,     std::char_traits<char> >        string_ref;
+    typedef basic_string_ref<wchar_t,  std::char_traits<wchar_t> >    wstring_ref;
+
+#ifndef BOOST_NO_CXX11_CHAR16_T
+    typedef basic_string_ref<char16_t, std::char_traits<char16_t> > u16string_ref;
+#endif
+
+#ifndef BOOST_NO_CXX11_CHAR32_T
+    typedef basic_string_ref<char32_t, std::char_traits<char32_t> > u32string_ref;
+#endif
+
+}
+
+#endif

include/boost/utility/string_view.hpp

@@ -0,0 +1,666 @@
+/*
+   <20> Copyright (c) Marshall Clow 2012-2015.
+   <20> Copyright Beman Dawes 2015
+
+   Distributed under the Boost Software License, Version 1.0. (See accompanying
+   file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+    For more information, see http://www.boost.org
+
+    Based on the StringRef implementation in LLVM (http://llvm.org) and
+    N3422 by Jeffrey Yasskin
+        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html
+    Updated July 2015 to reflect the Library Fundamentals TS
+        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html
+*/
+
+#ifndef BOOST_STRING_VIEW_HPP
+#define BOOST_STRING_VIEW_HPP
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+#include <boost/utility/string_view_fwd.hpp>
+#include <boost/throw_exception.hpp>
+
+#include <cstddef>
+#include <stdexcept>
+#include <algorithm>
+#include <iterator>
+#include <string>
+#include <cstring>
+#include <iosfwd>
+
+namespace boost {
+
+    namespace detail {
+    //  A helper functor because sometimes we don't have lambdas
+        template <typename charT, typename traits>
+        class string_view_traits_eq {
+        public:
+            string_view_traits_eq ( charT ch ) : ch_(ch) {}
+            bool operator () ( charT val ) const { return traits::eq ( ch_, val ); }
+            charT ch_;
+            };
+        }
+
+    template<typename charT, typename traits>  // traits defaulted in string_view_fwd.hpp
+    class basic_string_view {
+    public:
+      // types
+      typedef traits traits_type;
+      typedef charT value_type;
+      typedef charT* pointer;
+      typedef const charT* const_pointer;
+      typedef charT& reference;
+      typedef const charT& const_reference;
+      typedef const_pointer const_iterator; // impl-defined
+      typedef const_iterator iterator;
+      typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+      typedef const_reverse_iterator reverse_iterator;
+      typedef std::size_t size_type;
+      typedef std::ptrdiff_t difference_type;
+      static BOOST_CONSTEXPR_OR_CONST size_type npos = size_type(-1);
+
+      // construct/copy
+      BOOST_CONSTEXPR basic_string_view() BOOST_NOEXCEPT
+        : ptr_(NULL), len_(0) {}
+
+      BOOST_CONSTEXPR basic_string_view(const basic_string_view &rhs) BOOST_NOEXCEPT
+        : ptr_(rhs.ptr_), len_(rhs.len_) {}
+
+      basic_string_view& operator=(const basic_string_view &rhs) BOOST_NOEXCEPT {
+        ptr_ = rhs.ptr_;
+        len_ = rhs.len_;
+        return *this;
+        }
+
+      template<typename Allocator>
+        basic_string_view(const std::basic_string<charT, traits,
+          Allocator>& str) BOOST_NOEXCEPT
+        : ptr_(str.data()), len_(str.length()) {}
+
+      BOOST_CONSTEXPR basic_string_view(const charT* str)
+        : ptr_(str), len_(traits::length(str)) {}
+
+      BOOST_CONSTEXPR basic_string_view(const charT* str, size_type len)
+        : ptr_(str), len_(len) {}
+
+        // iterators
+        BOOST_CONSTEXPR const_iterator   begin() const BOOST_NOEXCEPT {  return ptr_; }
+        BOOST_CONSTEXPR const_iterator  cbegin() const BOOST_NOEXCEPT {  return ptr_; }
+        BOOST_CONSTEXPR const_iterator     end() const BOOST_NOEXCEPT {  return ptr_ + len_; }
+        BOOST_CONSTEXPR const_iterator    cend() const BOOST_NOEXCEPT {  return ptr_ + len_; }
+                const_reverse_iterator  rbegin() const BOOST_NOEXCEPT {  return const_reverse_iterator (end()); }
+                const_reverse_iterator crbegin() const BOOST_NOEXCEPT {  return const_reverse_iterator (end()); }
+                const_reverse_iterator    rend() const BOOST_NOEXCEPT {  return const_reverse_iterator (begin()); }
+                const_reverse_iterator   crend() const BOOST_NOEXCEPT {  return const_reverse_iterator (begin()); }
+
+        // capacity
+        BOOST_CONSTEXPR size_type size()     const BOOST_NOEXCEPT {  return len_; }
+        BOOST_CONSTEXPR size_type length()   const BOOST_NOEXCEPT {  return len_; }
+        BOOST_CONSTEXPR size_type max_size() const BOOST_NOEXCEPT {  return len_; }
+        BOOST_CONSTEXPR bool empty()         const BOOST_NOEXCEPT {  return len_ == 0; }
+
+        // element access
+        BOOST_CONSTEXPR const_reference operator[](size_type pos) const { return ptr_[pos]; }
+
+        BOOST_CONSTEXPR const_reference at(size_t pos) const {
+            if ( pos >= len_ )
+                BOOST_THROW_EXCEPTION( std::out_of_range ( "boost::string_view::at" ) );
+            return ptr_[pos];
+            }
+
+        BOOST_CONSTEXPR const_reference front() const { return ptr_[0]; }
+        BOOST_CONSTEXPR const_reference back()  const { return ptr_[len_-1]; }
+        BOOST_CONSTEXPR const_pointer data()  const BOOST_NOEXCEPT { return ptr_; }
+
+        // modifiers
+        void clear() BOOST_NOEXCEPT { len_ = 0; }          // Boost extension
+
+        BOOST_CXX14_CONSTEXPR void remove_prefix(size_type n) {
+            if ( n > len_ )
+                n = len_;
+            ptr_ += n;
+            len_ -= n;
+            }
+
+        BOOST_CXX14_CONSTEXPR void remove_suffix(size_type n) {
+            if ( n > len_ )
+                n = len_;
+            len_ -= n;
+            }
+
+        BOOST_CXX14_CONSTEXPR void swap(basic_string_view& s) BOOST_NOEXCEPT {
+            std::swap(ptr_, s.ptr_);
+            std::swap(len_, s.len_);
+            }
+
+
+        // basic_string_view string operations
+ 
+#ifndef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+        template<typename Allocator>
+        explicit operator std::basic_string<charT, traits, Allocator>() const {
+            return std::basic_string<charT, traits, Allocator>(begin(), end());
+            }
+#endif
+
+#ifndef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+        template<typename Allocator = std::allocator<charT> >
+        std::basic_string<charT, traits> to_string(const Allocator& a = Allocator()) const {
+            return std::basic_string<charT, traits, Allocator>(begin(), end(), a);
+            }
+#else
+        std::basic_string<charT, traits> to_string() const {
+            return std::basic_string<charT, traits>(begin(), end());
+            }
+#endif
+
+        size_type copy( charT* s, size_type n, size_type pos = 0 ) const {
+            if ( pos > size())
+                BOOST_THROW_EXCEPTION( std::out_of_range ( "string_view::copy" ) );
+            size_type rlen = (std::min)(n, len_ - pos);
+            // use std::copy(begin() + pos, begin() + pos + rlen, s) rather than
+            // std::copy_n(begin() + pos, rlen, s) to support pre-C++11 standard libraries
+            std::copy(begin() + pos, begin() + pos + rlen, s);
+            return rlen;
+            }
+
+        BOOST_CXX14_CONSTEXPR basic_string_view substr(size_type pos, size_type n=npos) const {
+            if ( pos > size())
+                BOOST_THROW_EXCEPTION( std::out_of_range ( "string_view::substr" ) );
+            if ( n == npos || pos + n > size())
+                n = size () - pos;
+            return basic_string_view ( data() + pos, n );
+            }
+
+        BOOST_CXX14_CONSTEXPR int compare(basic_string_view x) const BOOST_NOEXCEPT {
+            const int cmp = traits::compare ( ptr_, x.ptr_, (std::min)(len_, x.len_));
+            return cmp != 0 ? cmp : ( len_ == x.len_ ? 0 : len_ < x.len_ ? -1 : 1 );
+            }
+        BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1, basic_string_view x)
+          const BOOST_NOEXCEPT {
+            return substr(pos1, n1).compare(x);
+            }
+        BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1,
+          basic_string_view x, size_type pos2, size_type n2) const {
+            return substr(pos1, n1).compare(x.substr(pos2, n2));
+            }
+        BOOST_CXX14_CONSTEXPR int compare(const charT* x) const {
+            return compare(basic_string_view(x));
+            }
+        BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1, const charT* x) const {
+            return substr(pos1, n1).compare(basic_string_view(x));
+            }
+        BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1,
+          const charT* x, size_type n2) const {
+            return substr(pos1, n1).compare(basic_string_view(x, n2));
+            }
+
+        //  Searches
+
+        BOOST_CONSTEXPR bool starts_with(charT c) const {  // Boost extension
+            return !empty() && traits::eq ( c, front());
+            }  
+        BOOST_CONSTEXPR bool starts_with(basic_string_view x) const {  // Boost extension
+            return len_ >= x.len_ && traits::compare ( ptr_, x.ptr_, x.len_ ) == 0;
+            }
+
+        BOOST_CONSTEXPR bool ends_with(charT c) const {
+            return !empty() && traits::eq ( c, back());  // Boost extension
+            }
+        BOOST_CONSTEXPR bool ends_with(basic_string_view x) const {  // Boost extension
+            return len_ >= x.len_ && traits::compare ( ptr_ + len_ - x.len_,
+              x.ptr_, x.len_ ) == 0;
+            }
+
+        //  find
+        BOOST_CXX14_CONSTEXPR size_type find(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT {
+            if (pos > size())
+              return npos;
+            if (s.empty())
+              return pos;
+            const_iterator iter = std::search(this->cbegin() + pos, this->cend(),
+                                               s.cbegin (), s.cend (), traits::eq );
+            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
+            }
+        BOOST_CXX14_CONSTEXPR size_type find(charT c, size_type pos = 0) const BOOST_NOEXCEPT
+            { return find(basic_string_view(&c, 1), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find(const charT* s, size_type pos, size_type n) const
+            { return find(basic_string_view(s, n), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find(const charT* s, size_type pos = 0) const
+            { return find(basic_string_view(s), pos); }
+
+        //  rfind
+        BOOST_CXX14_CONSTEXPR size_type rfind(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT {
+            if (len_ < s.len_)
+              return npos;
+            if (pos > len_ - s.len_) 
+              pos = len_ - s.len_;
+            if (s.len_ == 0u)     // an empty string is always found
+              return pos;
+            for (const charT* cur = ptr_ + pos;; --cur) {
+                if (traits::compare(cur, s.ptr_, s.len_) == 0)
+                  return cur - ptr_;
+                if (cur == ptr_)
+                  return npos;
+                };
+            }
+        BOOST_CXX14_CONSTEXPR size_type rfind(charT c, size_type pos = npos) const BOOST_NOEXCEPT
+            { return rfind(basic_string_view(&c, 1), pos); }
+        BOOST_CXX14_CONSTEXPR size_type rfind(const charT* s, size_type pos, size_type n) const
+            { return rfind(basic_string_view(s, n), pos); }
+        BOOST_CXX14_CONSTEXPR size_type rfind(const charT* s, size_type pos = npos) const
+            { return rfind(basic_string_view(s), pos); }
+
+        //  find_first_of
+        BOOST_CXX14_CONSTEXPR size_type find_first_of(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT {
+            if (pos >= len_ || s.len_ == 0)
+              return npos;
+            const_iterator iter = std::find_first_of
+                (this->cbegin () + pos, this->cend (), s.cbegin (), s.cend (), traits::eq);
+            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
+            }
+        BOOST_CXX14_CONSTEXPR size_type find_first_of(charT c, size_type pos = 0) const BOOST_NOEXCEPT
+            { return find_first_of(basic_string_view(&c, 1), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find_first_of(const charT* s, size_type pos, size_type n) const
+            { return find_first_of(basic_string_view(s, n), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find_first_of(const charT* s, size_type pos = 0) const
+            { return find_first_of(basic_string_view(s), pos); }
+
+        //  find_last_of
+        BOOST_CXX14_CONSTEXPR size_type find_last_of(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT {
+            if (s.len_ == 0u)
+              return npos;
+            if (pos >= len_)
+              pos = 0;
+            else
+              pos = len_ - (pos+1);
+            const_reverse_iterator iter = std::find_first_of
+                ( this->crbegin () + pos, this->crend (), s.cbegin (), s.cend (), traits::eq );
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter);
+            }
+        BOOST_CXX14_CONSTEXPR size_type find_last_of(charT c, size_type pos = npos) const BOOST_NOEXCEPT
+            { return find_last_of(basic_string_view(&c, 1), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find_last_of(const charT* s, size_type pos, size_type n) const
+            { return find_last_of(basic_string_view(s, n), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find_last_of(const charT* s, size_type pos = npos) const
+            { return find_last_of(basic_string_view(s), pos); }
+
+        //  find_first_not_of
+        BOOST_CXX14_CONSTEXPR size_type find_first_not_of(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT {
+            if (pos >= len_)
+              return npos;
+            if (s.len_ == 0)
+              return pos;
+            const_iterator iter = find_not_of ( this->cbegin () + pos, this->cend (), s );
+            return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
+            }
+        BOOST_CXX14_CONSTEXPR size_type find_first_not_of(charT c, size_type pos = 0) const BOOST_NOEXCEPT
+            { return find_first_not_of(basic_string_view(&c, 1), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find_first_not_of(const charT* s, size_type pos, size_type n) const
+            { return find_first_not_of(basic_string_view(s, n), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find_first_not_of(const charT* s, size_type pos = 0) const
+            { return find_first_not_of(basic_string_view(s), pos); }
+
+        //  find_last_not_of
+        BOOST_CXX14_CONSTEXPR size_type find_last_not_of(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT {
+            if (pos >= len_)
+              pos = len_ - 1;;
+            if (s.len_ == 0u)
+              return pos;
+            pos = len_ - (pos+1);
+            const_reverse_iterator iter = find_not_of ( this->crbegin () + pos, this->crend (), s );
+            return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter );
+            }
+        BOOST_CXX14_CONSTEXPR size_type find_last_not_of(charT c, size_type pos = npos) const BOOST_NOEXCEPT
+            { return find_last_not_of(basic_string_view(&c, 1), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find_last_not_of(const charT* s, size_type pos, size_type n) const
+            { return find_last_not_of(basic_string_view(s, n), pos); }
+        BOOST_CXX14_CONSTEXPR size_type find_last_not_of(const charT* s, size_type pos = npos) const
+            { return find_last_not_of(basic_string_view(s), pos); }
+
+    private:
+        template <typename r_iter>
+        size_type reverse_distance ( r_iter first, r_iter last ) const {
+            return len_ - 1 - std::distance ( first, last );
+            }
+
+        template <typename Iterator>
+        Iterator find_not_of ( Iterator first, Iterator last, basic_string_view s ) const {
+            for ( ; first != last ; ++first )
+                if ( 0 == traits::find ( s.ptr_, s.len_, *first ))
+                    return first;
+            return last;
+            }
+
+
+
+        const charT *ptr_;
+        std::size_t len_;
+        };
+
+
+//  Comparison operators
+//  Equality
+    template<typename charT, typename traits>
+    inline bool operator==(basic_string_view<charT, traits> x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT {
+        if ( x.size () != y.size ()) return false;
+        return x.compare(y) == 0;
+        }
+
+//  Inequality
+    template<typename charT, typename traits>
+    inline bool operator!=(basic_string_view<charT, traits> x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        if ( x.size () != y.size ()) return true;
+        return x.compare(y) != 0;
+        }
+
+//  Less than
+    template<typename charT, typename traits>
+    inline bool operator<(basic_string_view<charT, traits> x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return x.compare(y) < 0;
+        }
+
+//  Greater than
+    template<typename charT, typename traits>
+    inline bool operator>(basic_string_view<charT, traits> x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return x.compare(y) > 0;
+        }
+
+//  Less than or equal to
+    template<typename charT, typename traits>
+    inline bool operator<=(basic_string_view<charT, traits> x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return x.compare(y) <= 0;
+        }
+
+//  Greater than or equal to
+    template<typename charT, typename traits>
+    inline bool operator>=(basic_string_view<charT, traits> x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return x.compare(y) >= 0;
+        }
+
+// "sufficient additional overloads of comparison functions"
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator==(basic_string_view<charT, traits> x,
+      const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { 
+        return x == basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator==(const std::basic_string<charT, traits, Allocator> & x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) == y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator==(basic_string_view<charT, traits> x,
+      const charT * y) BOOST_NOEXCEPT { 
+        return x == basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator==(const charT * x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) == y;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator!=(basic_string_view<charT, traits> x,
+      const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { 
+        return x != basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator!=(const std::basic_string<charT, traits, Allocator> & x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) != y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator!=(basic_string_view<charT, traits> x,
+      const charT * y) BOOST_NOEXCEPT { 
+        return x != basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator!=(const charT * x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) != y;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator<(basic_string_view<charT, traits> x,
+      const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { 
+        return x < basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator<(const std::basic_string<charT, traits, Allocator> & x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) < y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator<(basic_string_view<charT, traits> x,
+      const charT * y) BOOST_NOEXCEPT { 
+        return x < basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator<(const charT * x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) < y;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator>(basic_string_view<charT, traits> x,
+      const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { 
+        return x > basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator>(const std::basic_string<charT, traits, Allocator> & x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) > y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator>(basic_string_view<charT, traits> x,
+      const charT * y) BOOST_NOEXCEPT { 
+        return x > basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator>(const charT * x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) > y;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator<=(basic_string_view<charT, traits> x,
+      const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { 
+        return x <= basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator<=(const std::basic_string<charT, traits, Allocator> & x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) <= y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator<=(basic_string_view<charT, traits> x,
+      const charT * y) BOOST_NOEXCEPT { 
+        return x <= basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator<=(const charT * x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) <= y;
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator>=(basic_string_view<charT, traits> x,
+      const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { 
+        return x >= basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits, typename Allocator>
+    inline bool operator>=(const std::basic_string<charT, traits, Allocator> & x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) >= y;
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator>=(basic_string_view<charT, traits> x,
+      const charT * y) BOOST_NOEXCEPT { 
+        return x >= basic_string_view<charT, traits>(y);
+        }
+
+    template<typename charT, typename traits>
+    inline bool operator>=(const charT * x,
+      basic_string_view<charT, traits> y) BOOST_NOEXCEPT { 
+        return basic_string_view<charT, traits>(x) >= y;
+        }
+
+    namespace detail {
+
+        template<class charT, class traits>
+        inline void insert_fill_chars(std::basic_ostream<charT, traits>& os, std::size_t n) {
+            enum { chunk_size = 8 };
+            charT fill_chars[chunk_size];
+            std::fill_n(fill_chars, static_cast< std::size_t >(chunk_size), os.fill());
+            for (; n >= chunk_size && os.good(); n -= chunk_size)
+                os.write(fill_chars, static_cast< std::size_t >(chunk_size));
+            if (n > 0 && os.good())
+                os.write(fill_chars, n);
+            }
+
+        template<class charT, class traits>
+        void insert_aligned(std::basic_ostream<charT, traits>& os, const basic_string_view<charT,traits>& str) {
+            const std::size_t size = str.size();
+            const std::size_t alignment_size = static_cast< std::size_t >(os.width()) - size;
+            const bool align_left = (os.flags() & std::basic_ostream<charT, traits>::adjustfield) == std::basic_ostream<charT, traits>::left;
+            if (!align_left) {
+                detail::insert_fill_chars(os, alignment_size);
+                if (os.good())
+                    os.write(str.data(), size);
+                }
+            else {
+                os.write(str.data(), size);
+                if (os.good())
+                    detail::insert_fill_chars(os, alignment_size);
+                }
+            }
+
+        } // namespace detail
+
+    // Inserter
+    template<class charT, class traits>
+    inline std::basic_ostream<charT, traits>&
+    operator<<(std::basic_ostream<charT, traits>& os,
+      const basic_string_view<charT,traits>& str) {
+        if (os.good()) {
+            const std::size_t size = str.size();
+            const std::size_t w = static_cast< std::size_t >(os.width());
+            if (w <= size)
+                os.write(str.data(), size);
+            else
+                detail::insert_aligned(os, str);
+            os.width(0);
+            }
+        return os;
+        }
+
+#if 0
+    // numeric conversions
+    //
+    //  These are short-term implementations.
+    //  In a production environment, I would rather avoid the copying.
+    //
+    inline int stoi (string_view str, size_t* idx=0, int base=10) {
+        return std::stoi ( std::string(str), idx, base );
+        }
+
+    inline long stol (string_view str, size_t* idx=0, int base=10) {
+        return std::stol ( std::string(str), idx, base );
+        }
+
+    inline unsigned long stoul (string_view str, size_t* idx=0, int base=10) {
+        return std::stoul ( std::string(str), idx, base );
+        }
+
+    inline long long stoll (string_view str, size_t* idx=0, int base=10) {
+        return std::stoll ( std::string(str), idx, base );
+        }
+
+    inline unsigned long long stoull (string_view str, size_t* idx=0, int base=10) {
+        return std::stoull ( std::string(str), idx, base );
+        }
+
+    inline float stof (string_view str, size_t* idx=0) {
+        return std::stof ( std::string(str), idx );
+        }
+
+    inline double stod (string_view str, size_t* idx=0) {
+        return std::stod ( std::string(str), idx );
+        }
+
+    inline long double stold (string_view str, size_t* idx=0)  {
+        return std::stold ( std::string(str), idx );
+        }
+
+    inline int  stoi (wstring_view str, size_t* idx=0, int base=10) {
+        return std::stoi ( std::wstring(str), idx, base );
+        }
+
+    inline long stol (wstring_view str, size_t* idx=0, int base=10) {
+        return std::stol ( std::wstring(str), idx, base );
+        }
+
+    inline unsigned long stoul (wstring_view str, size_t* idx=0, int base=10) {
+        return std::stoul ( std::wstring(str), idx, base );
+        }
+
+    inline long long stoll (wstring_view str, size_t* idx=0, int base=10) {
+        return std::stoll ( std::wstring(str), idx, base );
+        }
+
+    inline unsigned long long stoull (wstring_view str, size_t* idx=0, int base=10) {
+        return std::stoull ( std::wstring(str), idx, base );
+        }
+
+    inline float  stof (wstring_view str, size_t* idx=0) {
+        return std::stof ( std::wstring(str), idx );
+        }
+
+    inline double stod (wstring_view str, size_t* idx=0) {
+        return std::stod ( std::wstring(str), idx );
+        }
+
+    inline long double stold (wstring_view str, size_t* idx=0) {
+        return std::stold ( std::wstring(str), idx );
+        }
+#endif
+
+}
+
+#if 0
+namespace std {
+    // Hashing
+    template<> struct hash<boost::string_view>;
+    template<> struct hash<boost::u16string_view>;
+    template<> struct hash<boost::u32string_view>;
+    template<> struct hash<boost::wstring_view>;
+}
+#endif
+
+#endif

include/boost/utility/string_view_fwd.hpp

@@ -0,0 +1,39 @@
+/*
+   Copyright (c) Marshall Clow 2012-2012.
+
+   Distributed under the Boost Software License, Version 1.0. (See accompanying
+   file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+    For more information, see http://www.boost.org
+
+    Based on the StringRef implementation in LLVM (http://llvm.org) and
+    N3422 by Jeffrey Yasskin
+        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html
+    Updated July 2015 to reflect the Library Fundamentals TS
+        http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html
+
+*/
+
+#ifndef BOOST_STRING_VIEW_FWD_HPP
+#define BOOST_STRING_VIEW_FWD_HPP
+
+#include <boost/config.hpp>
+#include <string>
+
+namespace boost {
+
+    template<typename charT, typename traits = std::char_traits<charT> > class basic_string_view;
+    typedef basic_string_view<char,     std::char_traits<char> >        string_view;
+    typedef basic_string_view<wchar_t,  std::char_traits<wchar_t> >    wstring_view;
+
+#ifndef BOOST_NO_CXX11_CHAR16_T
+    typedef basic_string_view<char16_t, std::char_traits<char16_t> > u16string_view;
+#endif
+
+#ifndef BOOST_NO_CXX11_CHAR32_T
+    typedef basic_string_view<char32_t, std::char_traits<char32_t> > u32string_view;
+#endif
+
+}
+
+#endif

include/boost/utility/swap.hpp

@@ -1,55 +0,0 @@
-// Copyright (C) 2007, 2008 Steven Watanabe, Joseph Gauterin, Niels Dekker
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-// For more information, see http://www.boost.org
-
-
-#ifndef BOOST_UTILITY_SWAP_HPP
-#define BOOST_UTILITY_SWAP_HPP
-
-// Note: the implementation of this utility contains various workarounds:
-// - swap_impl is put outside the boost namespace, to avoid infinite
-// recursion (causing stack overflow) when swapping objects of a primitive
-// type.
-// - swap_impl has a using-directive, rather than a using-declaration,
-// because some compilers (including MSVC 7.1, Borland 5.9.3, and
-// Intel 8.1) don't do argument-dependent lookup when it has a
-// using-declaration instead.
-// - boost::swap has two template arguments, instead of one, to
-// avoid ambiguity when swapping objects of a Boost type that does
-// not have its own boost::swap overload.
-
-#include <algorithm> //for std::swap
-#include <cstddef> //for std::size_t
-
-namespace boost_swap_impl
-{
-  template<class T>
-  void swap_impl(T& left, T& right)
-  {
-    using namespace std;//use std::swap if argument dependent lookup fails
-    swap(left,right);
-  }
-
-  template<class T, std::size_t N>
-  void swap_impl(T (& left)[N], T (& right)[N])
-  {
-    for (std::size_t i = 0; i < N; ++i)
-    {
-      ::boost_swap_impl::swap_impl(left[i], right[i]);
-    }
-  }
-}
-
-namespace boost
-{
-  template<class T1, class T2>
-  void swap(T1& left, T2& right)
-  {
-    ::boost_swap_impl::swap_impl(left, right);
-  }
-}
-
-#endif

include/boost/utility/value_init.hpp

@@ -33,7 +33,6 @@
 
 #ifdef BOOST_MSVC
 #pragma warning(push)
-#if _MSC_VER >= 1310
 // It is safe to ignore the following warning from MSVC 7.1 or higher:
 // "warning C4351: new behavior: elements of array will be default initialized"
 #pragma warning(disable: 4351)
@@ -41,7 +40,6 @@
 // a const type: "warning C4512: assignment operator could not be generated".
 #pragma warning(disable: 4512)
 #endif
-#endif
 
 #ifdef BOOST_NO_COMPLETE_VALUE_INITIALIZATION
   // Implementation detail: The macro BOOST_DETAIL_VALUE_INIT_WORKAROUND_SUGGESTED 
@@ -73,12 +71,14 @@ class initialized
 #endif 
       remove_const<T>::type data;
 
+      BOOST_GPU_ENABLED
       wrapper()
       :
       data()
       {
       }
 
+      BOOST_GPU_ENABLED
       wrapper(T const & arg)
       :
       data(arg)
@@ -92,6 +92,7 @@ class initialized
 #endif 
       aligned_storage<sizeof(wrapper), alignment_of<wrapper>::value>::type x;
 
+    BOOST_GPU_ENABLED
     wrapper * wrapper_address() const
     {
       return static_cast<wrapper *>( static_cast<void*>(&x));
@@ -99,6 +100,7 @@ class initialized
 
   public :
 
+    BOOST_GPU_ENABLED
     initialized()
     {
 #if BOOST_DETAIL_VALUE_INIT_WORKAROUND
@@ -107,16 +109,19 @@ class initialized
       new (wrapper_address()) wrapper();
     }
 
+    BOOST_GPU_ENABLED
     initialized(initialized const & arg)
     {
       new (wrapper_address()) wrapper( static_cast<wrapper const &>(*(arg.wrapper_address())));
     }
 
+    BOOST_GPU_ENABLED
     explicit initialized(T const & arg)
     {
       new (wrapper_address()) wrapper(arg);
     }
 
+    BOOST_GPU_ENABLED
     initialized & operator=(initialized const & arg)
     {
       // Assignment is only allowed when T is non-const.
@@ -125,31 +130,37 @@ class initialized
       return *this;
     }
 
+    BOOST_GPU_ENABLED
     ~initialized()
     {
       wrapper_address()->wrapper::~wrapper();
     }
 
+    BOOST_GPU_ENABLED
     T const & data() const
     {
       return wrapper_address()->data;
     }
 
+    BOOST_GPU_ENABLED
     T& data()
     {
       return wrapper_address()->data;
     }
 
+    BOOST_GPU_ENABLED
     void swap(initialized & arg)
     {
       ::boost::swap( this->data(), arg.data() );
     }
 
+    BOOST_GPU_ENABLED
     operator T const &() const
     {
       return wrapper_address()->data;
     }
 
+    BOOST_GPU_ENABLED
     operator T&()
     {
       return wrapper_address()->data;
@@ -158,18 +169,21 @@ class initialized
 } ;
 
 template<class T>
+BOOST_GPU_ENABLED
 T const& get ( initialized<T> const& x )
 {
   return x.data() ;
 }
 
 template<class T>
+BOOST_GPU_ENABLED
 T& get ( initialized<T>& x )
 {
   return x.data() ;
 }
 
 template<class T>
+BOOST_GPU_ENABLED
 void swap ( initialized<T> & lhs, initialized<T> & rhs )
 {
   lhs.swap(rhs) ;
@@ -185,31 +199,37 @@ class value_initialized
 
   public :
     
+    BOOST_GPU_ENABLED
     value_initialized()
     :
     m_data()
     { }
     
+    BOOST_GPU_ENABLED
     T const & data() const
     {
       return m_data.data();
     }
 
+    BOOST_GPU_ENABLED
     T& data()
     {
       return m_data.data();
     }
 
+    BOOST_GPU_ENABLED
     void swap(value_initialized & arg)
     {
       m_data.swap(arg.m_data);
     }
 
+    BOOST_GPU_ENABLED
     operator T const &() const
     {
       return m_data;
     }
 
+    BOOST_GPU_ENABLED
     operator T&()
     {
       return m_data;
@@ -218,18 +238,21 @@ class value_initialized
 
 
 template<class T>
+BOOST_GPU_ENABLED
 T const& get ( value_initialized<T> const& x )
 {
   return x.data() ;
 }
 
 template<class T>
+BOOST_GPU_ENABLED
 T& get ( value_initialized<T>& x )
 {
   return x.data() ;
 }
 
 template<class T>
+BOOST_GPU_ENABLED
 void swap ( value_initialized<T> & lhs, value_initialized<T> & rhs )
 {
   lhs.swap(rhs) ;
@@ -240,7 +263,7 @@ class initialized_value_t
 {
   public :
     
-    template <class T> operator T() const
+    template <class T> BOOST_GPU_ENABLED operator T() const
     {
       return initialized<T>().data();
     }

index.html

@@ -14,27 +14,25 @@
 		<p>But that doesn't mean there isn't useful stuff here. Take a look:</p>
 		<blockquote>
 			<p>
-				<a href="utility.htm#addressof">addressof</a><br>
-				<a href="assert.html">assert</a><br>
-				<a href="base_from_member.html">base_from_member</a><br>
+				<a href="../core/doc/html/core/addressof.html">addressof</a> (moved to the Boost.Core library)<br>
+				<a href="doc/html/base_from_member.html">base_from_member</a><br>
 				<a href="utility.htm#BOOST_BINARY">BOOST_BINARY</a><br>
 				<a href="call_traits.htm">call_traits</a><br>
-				<a href="checked_delete.html">checked_delete</a><br>
-				<a href="compressed_pair.htm">compressed_pair</a><br>
-				<a href="current_function.html">current_function</a><br>
-            <a href="doc/html/declval.html">declval</a><br>
-            <a href="enable_if.html">enable_if</a><br>
+				<a href="../core/doc/html/core/checked_delete.html">checked_delete</a> (moved to the Boost.Core library)<br>
+				<a href="doc/html/compressed_pair.html">compressed_pair</a><br>
+				<a href="doc/html/declval.html">declval</a><br>
+				<a href="../core/doc/html/core/enable_if.html">enable_if</a> (moved to the Boost.Core library)<br>
 				<a href="in_place_factories.html">in_place_factory</a><br>
-            <a href="iterator_adaptors.htm">iterator_adaptors</a><br>
-            <a href="generator_iterator.htm">generator iterator adaptors</a><br>
+				<a href="iterator_adaptors.htm">iterator_adaptors</a><br>
+				<a href="generator_iterator.htm">generator iterator adaptors</a><br>
 				<a href="utility.htm#functions_next_prior">next/prior</a><br>
-				<a href="utility.htm#Class_noncopyable">noncopyable</a><br>
+				<a href="../core/doc/html/core/noncopyable.html">noncopyable</a> (moved to the Boost.Core library)<br>
 				<a href="operators.htm">operators</a><br>
 				<a href="utility.htm#result_of">result_of</a><br>
-				<a href="swap.html">swap</a><br>
 				<a href="throw_exception.html">throw_exception</a><br>
 				<a href="utility.htm">utility</a><br>
-            <a href="value_init.htm">value_init</a>
+            <a href="doc/html/string_ref.html">string_ref</a><br>
+            <a href="value_init.htm">value_init</a><br>
          </p>
 		</blockquote>
 		<hr>

meta/libraries.json

@@ -0,0 +1,113 @@
+[
+    {
+        "key": "utility",
+        "name": "Utility",
+        "authors": [
+            "Dave Abrahams and others"
+        ],
+        "description": "Class noncopyable plus checked_delete(), checked_array_delete(), next(), prior() function templates, plus base-from-member idiom.",
+        "documentation": "utility.htm",
+        "category": [
+            "Algorithms",
+            "Function-objects",
+            "Memory",
+            "Miscellaneous",
+            "Patterns"
+        ]
+    },
+    {
+        "key": "utility/call_traits",
+        "name": "Call Traits",
+        "authors": [
+            "John Maddock, Howard Hinnant, et al"
+        ],
+        "description": "Defines types for passing parameters.",
+        "documentation": "call_traits.htm",
+        "category": [
+            "Generic"
+        ]
+    },
+    {
+        "key": "utility/compressed_pair",
+        "name": "Compressed Pair",
+        "authors": [
+            "John Maddock, Howard Hinnant, et al"
+        ],
+        "description": "Empty member optimization.",
+        "documentation": "compressed_pair.htm",
+        "category": [
+            "Data",
+            "Patterns"
+        ]
+    },
+    {
+        "key": "utility/identity_type",
+        "name": "Identity Type",
+        "authors": [
+            "Lorenzo Caminiti"
+        ],
+        "description": "Wrap types within round parenthesis so they can always be passed as macro parameters.",
+        "documentation": "identity_type/",
+        "category": [
+            "Preprocessor"
+        ],
+        "maintainers": [
+            "Lorenzo Caminiti <lorcaminiti -at- gmail.com>"
+        ]
+    },
+    {
+        "key": "utility/in_place_factories",
+        "name": "In Place Factory, Typed In Place Factory",
+        "authors": [
+            "Fernando Cacciola"
+        ],
+        "description": "Generic in-place construction of contained objects with a variadic argument-list.",
+        "documentation": "in_place_factories.html",
+        "category": [
+            "Generic"
+        ]
+    },
+    {
+        "key": "utility/operators",
+        "name": "Operators",
+        "authors": [
+            "Dave Abrahams",
+            "Jeremy Siek"
+        ],
+        "description": "Templates ease arithmetic classes and iterators.",
+        "documentation": "operators.htm",
+        "category": [
+            "Generic",
+            "Iterators",
+            "Math"
+        ],
+        "maintainers": [
+            "Daniel Frey <d.frey -at- gmx.de>"
+        ]
+    },
+    {
+        "key": "utility/result_of",
+        "name": "Result Of",
+        "description": "Determines the type of a function call expression.",
+        "documentation": "utility.htm#result_of",
+        "category": [
+            "Function-objects"
+        ],
+        "authors": "",
+        "maintainers": [
+            "Daniel Walker <daniel.j.walker -at- gmail.com>"
+        ]
+    },
+    {
+        "key": "utility/value_initialized",
+        "name": "Value Initialized",
+        "authors": [
+            "Fernando Cacciola"
+        ],
+        "description": "Wrapper for uniform-syntax value initialization, based on the original idea of David Abrahams.",
+        "documentation": "value_init.htm",
+        "category": [
+            "Miscellaneous"
+        ]
+    }
+]

noncopyable_test.cpp

@@ -1,36 +0,0 @@
-//  boost class noncopyable test program  ------------------------------------//
-
-//  (C) Copyright Beman Dawes 1999. Distributed under the Boost
-//  Software License, Version 1.0. (See accompanying file
-//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-//  See http://www.boost.org for most recent version including documentation.
-
-//  Revision History
-//   9 Jun 99  Add unnamed namespace
-//   2 Jun 99  Initial Version
-
-#include <boost/noncopyable.hpp>
-#include <iostream>
-
-//  This program demonstrates compiler errors resulting from trying to copy
-//  construct or copy assign a class object derived from class noncopyable.
-
-namespace
-{
-    class DontTreadOnMe : private boost::noncopyable
-    {
-    public:
-         DontTreadOnMe() { std::cout << "defanged!" << std::endl; }
-    };   // DontTreadOnMe
-
-}   // unnamed namespace
-
-int main()
-{
-    DontTreadOnMe object1;
-    DontTreadOnMe object2(object1);
-    object1 = object2;
-    return 0;
-}   // main
-  

numeric_traits_test.cpp

@@ -61,18 +61,19 @@ struct complement
         typedef complement_traits_aux<Number, size - 1> prev;
      public:
 #if defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ == 0 && __GNUC_PATCHLEVEL__ == 2
-      // GCC 4.0.2 ICEs on these C-style casts
+        // GCC 4.0.2 ICEs on these C-style casts
         BOOST_STATIC_CONSTANT(Number, max =
                             Number((prev::max) << CHAR_BIT)
                             + Number(UCHAR_MAX));
         BOOST_STATIC_CONSTANT(Number, min = Number((prev::min) << CHAR_BIT));
 #else
+        // Avoid left shifting negative integers, use multiplication instead
+        BOOST_STATIC_CONSTANT(Number, shift = 1u << CHAR_BIT);
         BOOST_STATIC_CONSTANT(Number, max =
-                            Number(Number(prev::max) << CHAR_BIT)
+                            Number(Number(prev::max) * shift)
                             + Number(UCHAR_MAX));
-        BOOST_STATIC_CONSTANT(Number, min = Number(Number(prev::min) << CHAR_BIT));
+        BOOST_STATIC_CONSTANT(Number, min = Number(Number(prev::min) * shift));
 #endif
-   
     };
 };
 

ref_ct_test.cpp

@@ -1,134 +0,0 @@
-// Copyright David Abrahams and Aleksey Gurtovoy
-// 2002-2004. Distributed under the Boost Software License, Version
-// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// compile-time test for "boost/ref.hpp" header content
-// see 'ref_test.cpp' for run-time part
-
-#include <boost/ref.hpp>
-#include <boost/type_traits/is_same.hpp>
-#include <boost/type_traits/remove_const.hpp>
-#include <boost/static_assert.hpp>
-#include <boost/detail/workaround.hpp>
-
-#include <boost/mpl/assert.hpp>
-
-namespace {
-
-template< typename T, typename U >
-void ref_test(boost::reference_wrapper<U>)
-{
-    typedef typename boost::reference_wrapper<U>::type type;
-    BOOST_STATIC_ASSERT((boost::is_same<U,type>::value));
-    BOOST_STATIC_ASSERT((boost::is_same<T,type>::value));
-}
-
-template< typename T >
-void assignable_test(T x)
-{
-    x = x;
-}
-
-template< bool R, typename T >
-void is_reference_wrapper_test(T)
-{
-    BOOST_STATIC_ASSERT(boost::is_reference_wrapper<T>::value == R);
-}
-
-template< typename R, typename Ref >
-void cxx_reference_test(Ref)
-{
-#if BOOST_WORKAROUND(__BORLANDC__, < 0x600)
-    typedef typename boost::remove_const<Ref>::type ref;
-    BOOST_STATIC_ASSERT((boost::is_same<R,ref>::value));
-#else
-    BOOST_STATIC_ASSERT((boost::is_same<R,Ref>::value));
-#endif
-}
-
-template< typename R, typename Ref >
-void unwrap_reference_test(Ref)
-{
-#if BOOST_WORKAROUND(__BORLANDC__, < 0x600)
-    typedef typename boost::remove_const<Ref>::type ref;
-    typedef typename boost::unwrap_reference<ref>::type type;
-#else
-    typedef typename boost::unwrap_reference<Ref>::type type;
-#endif
-    BOOST_STATIC_ASSERT((boost::is_same<R,type>::value));
-}
-
-} // namespace
-
-int main()
-{
-    int i = 0;
-    int& ri = i;
-
-    int const ci = 0;
-    int const& rci = ci;
-
-    // 'ref/cref' functions test
-    ref_test<int>(boost::ref(i));
-    ref_test<int>(boost::ref(ri));
-    ref_test<int const>(boost::ref(ci));
-    ref_test<int const>(boost::ref(rci));
-
-    ref_test<int const>(boost::cref(i));
-    ref_test<int const>(boost::cref(ri));
-    ref_test<int const>(boost::cref(ci));
-    ref_test<int const>(boost::cref(rci));
-
-    // test 'assignable' requirement
-    assignable_test(boost::ref(i));
-    assignable_test(boost::ref(ri));
-    assignable_test(boost::cref(i));
-    assignable_test(boost::cref(ci));
-    assignable_test(boost::cref(rci));
-
-    // 'is_reference_wrapper' test
-    is_reference_wrapper_test<true>(boost::ref(i));
-    is_reference_wrapper_test<true>(boost::ref(ri));
-    is_reference_wrapper_test<true>(boost::cref(i));
-    is_reference_wrapper_test<true>(boost::cref(ci));
-    is_reference_wrapper_test<true>(boost::cref(rci));
-
-    is_reference_wrapper_test<false>(i);
-    is_reference_wrapper_test<false, int&>(ri);
-    is_reference_wrapper_test<false>(ci);
-    is_reference_wrapper_test<false, int const&>(rci);
-
-    // ordinary references/function template arguments deduction test
-    cxx_reference_test<int>(i);
-    cxx_reference_test<int>(ri);
-    cxx_reference_test<int>(ci);
-    cxx_reference_test<int>(rci);
-
-    cxx_reference_test<int&, int&>(i);
-    cxx_reference_test<int&, int&>(ri);
-    cxx_reference_test<int const&, int const&>(i);
-    cxx_reference_test<int const&, int const&>(ri);
-    cxx_reference_test<int const&, int const&>(ci);
-    cxx_reference_test<int const&, int const&>(rci);
-
-    // 'unwrap_reference' test
-    unwrap_reference_test<int>(boost::ref(i));
-    unwrap_reference_test<int>(boost::ref(ri));
-    unwrap_reference_test<int const>(boost::cref(i));
-    unwrap_reference_test<int const>(boost::cref(ci));
-    unwrap_reference_test<int const>(boost::cref(rci));
-
-    unwrap_reference_test<int>(i);
-    unwrap_reference_test<int>(ri);
-    unwrap_reference_test<int>(ci);
-    unwrap_reference_test<int>(rci);
-    unwrap_reference_test<int&, int&>(i);
-    unwrap_reference_test<int&, int&>(ri);
-    unwrap_reference_test<int const&, int const&>(i);
-    unwrap_reference_test<int const&, int const&>(ri);
-    unwrap_reference_test<int const&, int const&>(ci);
-    unwrap_reference_test<int const&, int const&>(rci);
-
-    return 0;
-}

ref_test.cpp

@@ -1,121 +0,0 @@
-// Copyright David Abrahams and Aleksey Gurtovoy
-// 2002-2004. Distributed under the Boost Software License, Version
-// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// run-time test for "boost/ref.hpp" header content
-// see 'ref_ct_test.cpp' for compile-time part
-
-#if defined(_MSC_VER) && !defined(__ICL)
-# pragma warning(disable: 4786)  // identifier truncated in debug info
-# pragma warning(disable: 4710)  // function not inlined
-# pragma warning(disable: 4711)  // function selected for automatic inline expansion
-# pragma warning(disable: 4514)  // unreferenced inline removed
-#endif
-
-#include <boost/ref.hpp>
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-# pragma warning(push, 3)
-#endif
-
-#include <iostream>
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-# pragma warning(pop)
-#endif
-
-
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-namespace {
-using namespace boost;
-
-template <class T>
-struct ref_wrapper
-{
-    // Used to verify implicit conversion
-    static T* get_pointer(T& x)
-    {
-        return &x;
-    }
-
-    static T const* get_const_pointer(T const& x)
-    {
-        return &x;
-    }
-
-    template <class Arg>
-    static T* passthru(Arg x)
-    {
-        return get_pointer(x);
-    }
-
-    template <class Arg>
-    static T const* cref_passthru(Arg x)
-    {
-        return get_const_pointer(x);
-    }
-
-    static void test(T x)
-    {
-        BOOST_CHECK(passthru(ref(x)) == &x);
-        BOOST_CHECK(&ref(x).get() == &x);
-
-        BOOST_CHECK(cref_passthru(cref(x)) == &x);
-        BOOST_CHECK(&cref(x).get() == &x);
-    }
-};
-
-struct copy_counter {
-  static int count_;
-  copy_counter(copy_counter const& /*other*/) {
-    ++count_;
-  }
-  copy_counter() {}
-  static void reset() { count_ = 0; }
-  static int count() { return copy_counter::count_;  }
-};
-
-int copy_counter::count_ = 0;
-
-} // namespace unnamed
-
-template <class T>
-void do_unwrap(T t) {
-
-  /* typename unwrap_reference<T>::type& lt = */
-  unwrap_ref(t);
-
-}
-
-void unwrap_test() {
-
-  int i = 3;
-  const int ci = 2;
-
-  do_unwrap(i);
-  do_unwrap(ci);
-  do_unwrap(ref(i));
-  do_unwrap(cref(ci));
-  do_unwrap(ref(ci));
-
-  copy_counter cc;
-  BOOST_CHECK(cc.count() == 0);
-
-  do_unwrap(cc);
-  do_unwrap(ref(cc));
-  do_unwrap(cref(cc));
-
-  BOOST_CHECK(cc.count() == 1);
-  BOOST_CHECK(unwrap_ref(ref(cc)).count() == 1); 
-}
-
-int test_main(int, char * [])
-{
-    ref_wrapper<int>::test(1);
-    ref_wrapper<int const>::test(1);
-    unwrap_test();
-    return 0;
-}

swap.html

@@ -1,98 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
-  <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>Boost: Swap Documentation</title>
-   </head>
-  <body>
-    <!-- Page header -->
-    <h2>
-    <img src="../../boost.png" alt="C++ Boost" align="middle" width="277" height="86"/>
-      Header &lt;<a href="../../boost/swap.hpp">boost/swap.hpp</a>&gt;
-    </h2>
-
-    <h1>Swap</h1>
-    
-    <p>
-      <tt>template&lt;class T&gt; void swap(T&amp; <em>left</em>, T&amp; <em>right</em>);</tt>
-    </p>
-     
-    <!-- Introduction -->
-    <p>
-      The template function <tt>boost::swap</tt> allows the values of two variables to be swapped, using argument dependent lookup to select a specialized swap function if available. If no specialized swap function is available, <tt>std::swap</tt> is used.
-    </p>
-    
-    <!-- Rationale -->
-    <h2>Rationale</h2>
-    <p>
-      The generic <tt>std::swap</tt> function requires that the elements to be swapped are assignable and copy constructible. It is usually implemented using one copy construction and two assignments - this is often both unnecessarily restrictive and unnecessarily slow. In addition, where the generic swap implementation provides only the basic guarantee, specialized swap functions are often able to provide the no-throw exception guarantee (and it is considered best practice to do so where possible<sup><a href="#ref1">1</a></sup>).</p>
-    <p>
-      The alternative to using argument dependent lookup in this situation is to provide a template specialization of <tt>std::swap</tt> for every type that requires a specialized swap. Although this is legal C++, no Boost libraries use this method, whereas many Boost libraries provide specialized swap functions in their own namespaces.
-    </p>
-    <p>
-      <tt>boost::swap</tt> also supports swapping built-in arrays. Note that <tt>std::swap</tt> originally did not do so, but a request to add an overload of <tt>std::swap</tt> for built-in arrays has been accepted by the C++ Standards Committee<sup><a href="#ref2">2</a></sup>.
-    </p>
-    
-    <!-- Exception Safety -->
-    <h2>Exception Safety</h2>
-    <p>
-      <tt>boost::swap</tt> provides the same exception guarantee as the underlying swap function used, with one exception; for an array of type <tt>T[n]</tt>, where <tt>n > 1</tt> and the underlying swap function for <tt>T</tt> provides the strong exception guarantee, <tt>boost::swap</tt> provides only the basic exception guarantee.
-    </p>
-    
-    <!-- Requirements -->
-    <h2>Requirements</h2>
-    <p>Either:</p>
-    <ul>      
-      <li>T must be assignable</li>
-      <li>T must be copy constructible</li>
-    </ul>
-    <p>Or:</p>
-    <ul>
-      <li>A function with the signature <tt>swap(T&amp;,T&amp;)</tt> is available via argument dependent lookup</li>
-    </ul>
-    <p>Or:</p>
-    <ul>
-      <li>A template specialization of <tt>std::swap</tt> exists for T</li>
-    </ul>
-    <p>Or:</p>
-    <ul>
-      <li>T is a built-in array of swappable elements</li>
-    </ul>
-
-    
-    <!-- Portability -->
-    <h2>Portability</h2>
-    <p>
-      Several older compilers do not support argument dependent lookup &#x2012; on these compilers <tt>boost::swap</tt> will call <tt>std::swap</tt>, ignoring any specialized swap functions that could be found as a result of argument dependent lookup.
-    </p>
-    
-    <!-- Credits -->
-    <h2>Credits</h2>
-    <ul>
-      <li>
-        <em>Niels Dekker</em> - for implementing and documenting support for built-in arrays
-      </li>
-      <li>
-        <em><a href="mailto:Joseph.Gauterin@googlemail.com">Joseph Gauterin</a></em> - for the initial idea, implementation, tests, and documentation
-      </li>
-      <li>
-        <em>Steven Watanabe</em> - for the idea to make <tt>boost::swap</tt> less specialized than <tt>std::swap</tt>, thereby allowing the function to have the name 'swap' without introducing ambiguity
-      </li>      
-    </ul>
-
-    <!-- References -->
-    <hr/>
-    <p><sup><a id="ref1"/>[1]</sup>Scott Meyers, Effective C++ Third Edition, Item 25: "Consider support for a non-throwing swap"</p>
-    <p><sup><a id="ref2"/>[2]</sup><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#809">LWG Defect Report 809 (std::swap should be overloaded for array types)</a></p>
-
-    <!-- Copyright info -->    
-    <hr/>
-    <p>Revised: 08 September 2009</p>
-    <p>
-      Copyright 2007 - 2009 Joseph Gauterin. Use, modification, and distribution are subject to the Boost Software License, Version 1.0.
-      (See accompanying file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or a copy at &lt;<a href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>&gt;.)
-    </p>
-    
-  </body>
-</html>

swap/test/Jamfile.v2

@@ -1,37 +0,0 @@
-# Copyright (c) 2007, 2008 Joseph Gauterin
-#
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at
-# http://www.boost.org/LICENSE_1_0.txt)
-
-# bring in rules for testing
-import testing ;
-
-test-suite utility/swap
-    :
-    [ compile root_header_1.cpp                                  ]
-    [ compile root_header_2.cpp                                  ]
-    [ compile lib_header_1.cpp                                   ]
-    [ compile lib_header_2.cpp                                   ]
-    [ compile mixed_headers_1.cpp                                ]
-    [ compile mixed_headers_2.cpp                                ]
-    [ run primitive.cpp ../../../test/build//boost_test_exec_monitor/<link>static                      ]
-    [ run specialized_in_boost.cpp ../../../test/build//boost_test_exec_monitor/<link>static           ]
-    [ run specialized_in_global.cpp ../../../test/build//boost_test_exec_monitor/<link>static          ]
-    [ run specialized_in_other.cpp ../../../test/build//boost_test_exec_monitor/<link>static           ]
-    [ run specialized_in_std.cpp ../../../test/build//boost_test_exec_monitor/<link>static             ]
-    [ run specialized_in_boost_and_other.cpp ../../../test/build//boost_test_exec_monitor/<link>static ]
-    [ run std_bitset.cpp ../../../test/build//boost_test_exec_monitor/<link>static                     ]
-    [ run std_dateorder.cpp ../../../test/build//boost_test_exec_monitor/<link>static                  ]
-    [ run std_string.cpp ../../../test/build//boost_test_exec_monitor/<link>static                     ]
-    [ run std_typeinfo_ptr.cpp ../../../test/build//boost_test_exec_monitor/<link>static               ]
-    [ run std_vector_of_boost.cpp ../../../test/build//boost_test_exec_monitor/<link>static            ]
-    [ run std_vector_of_global.cpp ../../../test/build//boost_test_exec_monitor/<link>static           ]
-    [ run std_vector_of_other.cpp ../../../test/build//boost_test_exec_monitor/<link>static            ]
-    [ run no_ambiguity_in_boost.cpp ../../../test/build//boost_test_exec_monitor/<link>static          ]
-    [ run array_of_array_of_class.cpp ../../../test/build//boost_test_exec_monitor/<link>static        ]
-    [ run array_of_array_of_int.cpp ../../../test/build//boost_test_exec_monitor/<link>static          ]
-    [ run array_of_class.cpp ../../../test/build//boost_test_exec_monitor/<link>static                 ]
-    [ run array_of_int.cpp ../../../test/build//boost_test_exec_monitor/<link>static                   ]
-    [ run array_of_template.cpp ../../../test/build//boost_test_exec_monitor/<link>static              ]
-    ;

swap/test/array_of_array_of_class.cpp

@@ -1,69 +0,0 @@
-// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests swapping an array of arrays of swap_test_class objects by means of boost::swap.
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-//Put test class in the global namespace
-#include "./swap_test_class.hpp"
-
-#include <algorithm> //for std::copy and std::equal
-#include <cstddef> //for std::size_t
-
-//Provide swap function in both the namespace of swap_test_class
-//(which is the global namespace), and the std namespace.
-//It's common to provide a swap function for a class in both
-//namespaces. Scott Meyers recommends doing so: Effective C++,
-//Third Edition, item 25, "Consider support for a non-throwing swap".
-void swap(swap_test_class& left, swap_test_class& right)
-{
-  left.swap(right);
-}
-
-namespace std
-{
-  template <>
-  void swap(swap_test_class& left, swap_test_class& right)
-  {
-    left.swap(right);
-  }
-}
-
-
-int test_main(int, char*[])
-{
-  const std::size_t first_dimension = 3;
-  const std::size_t second_dimension = 4;
-  const std::size_t number_of_elements = first_dimension * second_dimension;
-
-  swap_test_class array1[first_dimension][second_dimension];
-  swap_test_class array2[first_dimension][second_dimension];
-
-  swap_test_class* const ptr1 = array1[0];
-  swap_test_class* const ptr2 = array2[0];
-
-  for (std::size_t i = 0; i < number_of_elements; ++i)
-  {
-    ptr1[i].set_data( static_cast<int>(i) );
-    ptr2[i].set_data( static_cast<int>(i + number_of_elements) );
-  }
-
-  boost::swap(array1, array2);
-
-  for (std::size_t i = 0; i < number_of_elements; ++i)
-  {
-    BOOST_CHECK_EQUAL(ptr1[i].get_data(), static_cast<int>(i + number_of_elements) );
-    BOOST_CHECK_EQUAL(ptr2[i].get_data(), static_cast<int>(i) );
-  }
-
-  BOOST_CHECK_EQUAL(swap_test_class::swap_count(), number_of_elements);
-  BOOST_CHECK_EQUAL(swap_test_class::copy_count(), 0);
-
-  return 0;
-}

swap/test/array_of_array_of_int.cpp

@@ -1,42 +0,0 @@
-// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests swapping an array of arrays of integers by means of boost::swap.
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-#include <algorithm> //for std::copy and std::equal
-#include <cstddef> //for std::size_t
-
-int test_main(int, char*[])
-{
-  const std::size_t first_dimension = 3;
-  const std::size_t second_dimension = 4;
-  const std::size_t number_of_elements = first_dimension * second_dimension;
-
-  int array1[first_dimension][second_dimension];
-  int array2[first_dimension][second_dimension];
-
-  int* const ptr1 = array1[0];
-  int* const ptr2 = array2[0];
-
-  for (std::size_t i = 0; i < number_of_elements; ++i)
-  {
-    ptr1[i] = static_cast<int>(i);
-    ptr2[i] = static_cast<int>(i + number_of_elements);
-  }
-
-  boost::swap(array1, array2);
-
-  for (std::size_t i = 0; i < number_of_elements; ++i)
-  {
-    BOOST_CHECK_EQUAL(ptr1[i], static_cast<int>(i + number_of_elements) );
-    BOOST_CHECK_EQUAL(ptr2[i], static_cast<int>(i) );
-  }
-  return 0;
-}

swap/test/array_of_class.cpp

@@ -1,61 +0,0 @@
-// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests swapping an array of arrays of swap_test_class objects by means of boost::swap.
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-//Put test class in the global namespace
-#include "./swap_test_class.hpp"
-
-#include <algorithm> //for std::copy and std::equal
-#include <cstddef> //for std::size_t
-
-//Provide swap function in both the namespace of swap_test_class
-//(which is the global namespace), and the std namespace.
-//It's common to provide a swap function for a class in both
-//namespaces. Scott Meyers recommends doing so: Effective C++,
-//Third Edition, item 25, "Consider support for a non-throwing swap".
-void swap(swap_test_class& left, swap_test_class& right)
-{
-  left.swap(right);
-}
-
-namespace std
-{
-  template <>
-  void swap(swap_test_class& left, swap_test_class& right)
-  {
-    left.swap(right);
-  }
-}
-
-
-int test_main(int, char*[])
-{
-  const std::size_t array_size = 2;
-  const swap_test_class initial_array1[array_size] = { swap_test_class(1), swap_test_class(2) };
-  const swap_test_class initial_array2[array_size] = { swap_test_class(3), swap_test_class(4) };
-  
-  swap_test_class array1[array_size];
-  swap_test_class array2[array_size];
-
-  std::copy(initial_array1, initial_array1 + array_size, array1);
-  std::copy(initial_array2, initial_array2 + array_size, array2);
-  
-  swap_test_class::reset();
-  boost::swap(array1, array2);
-
-  BOOST_CHECK(std::equal(array1, array1 + array_size, initial_array2));
-  BOOST_CHECK(std::equal(array2, array2 + array_size, initial_array1));
-
-  BOOST_CHECK_EQUAL(swap_test_class::swap_count(), array_size);
-  BOOST_CHECK_EQUAL(swap_test_class::copy_count(), 0);
-
-  return 0;
-}

swap/test/array_of_int.cpp

@@ -1,35 +0,0 @@
-// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests swapping an array of integers by means of boost::swap.
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-#include <algorithm> //for std::copy and std::equal
-#include <cstddef> //for std::size_t
-
-
-int test_main(int, char*[])
-{
-  const std::size_t array_size = 3;
-  const int initial_array1[array_size] = { 1, 2, 3 };
-  const int initial_array2[array_size] = { 4, 5, 6 };
-  
-  int array1[array_size];
-  int array2[array_size];
-
-  std::copy(initial_array1, initial_array1 + array_size, array1);
-  std::copy(initial_array2, initial_array2 + array_size, array2);
-  
-  boost::swap(array1, array2);
-
-  BOOST_CHECK(std::equal(array1, array1 + array_size, initial_array2));
-  BOOST_CHECK(std::equal(array2, array2 + array_size, initial_array1));
-
-  return 0;
-}

swap/test/array_of_template.cpp

@@ -1,71 +0,0 @@
-// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests swapping an array of swap_test_template<int> objects by means of boost::swap.
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-//Put test class in the global namespace
-#include "./swap_test_class.hpp"
-
-#include <algorithm> //for std::copy and std::equal
-#include <cstddef> //for std::size_t
-
-template <class T>
-class swap_test_template
-{
-public:
-  typedef T template_argument;
-  swap_test_class swap_test_object;
-};
-
-template <class T>
-inline bool operator==(const swap_test_template<T> & lhs, const swap_test_template<T> & rhs)
-{
-  return lhs.swap_test_object == rhs.swap_test_object;
-}
-
-template <class T>
-inline bool operator!=(const swap_test_template<T> & lhs, const swap_test_template<T> & rhs)
-{
-  return !(lhs == rhs);
-}
-
-//Provide swap function in the namespace of swap_test_template
-//(which is the global namespace).  Note that it isn't allowed to put
-//an overload of this function within the std namespace.
-template <class T>
-void swap(swap_test_template<T>& left, swap_test_template<T>& right)
-{
-  left.swap_test_object.swap(right.swap_test_object);
-}
-
-
-int test_main(int, char*[])
-{
-  const std::size_t array_size = 2;
-  const swap_test_template<int> initial_array1[array_size] = { swap_test_class(1), swap_test_class(2) };
-  const swap_test_template<int> initial_array2[array_size] = { swap_test_class(3), swap_test_class(4) };
-  
-  swap_test_template<int> array1[array_size];
-  swap_test_template<int> array2[array_size];
-
-  std::copy(initial_array1, initial_array1 + array_size, array1);
-  std::copy(initial_array2, initial_array2 + array_size, array2);
-  
-  swap_test_class::reset();
-  boost::swap(array1, array2);
-
-  BOOST_CHECK(std::equal(array1, array1 + array_size, initial_array2));
-  BOOST_CHECK(std::equal(array2, array2 + array_size, initial_array1));
-
-  BOOST_CHECK_EQUAL(swap_test_class::swap_count(), array_size);
-  BOOST_CHECK_EQUAL(swap_test_class::copy_count(), 0);
-
-  return 0;
-}

swap/test/lib_header_1.cpp

@@ -1,10 +0,0 @@
-// Copyright (c) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests that the swap header compiles as a standalone translation unit
-
-#include <boost/utility/swap.hpp>
-

swap/test/lib_header_2.cpp

@@ -1,11 +0,0 @@
-// Copyright (c) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests that the swap header include guards work correctly
-
-#include <boost/utility/swap.hpp>
-#include <boost/utility/swap.hpp>
-

swap/test/mixed_headers_1.cpp

@@ -1,11 +0,0 @@
-// Copyright (c) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests that the swap headers work when both are included
-
-#include <boost/swap.hpp>
-#include <boost/utility/swap.hpp>
-

swap/test/mixed_headers_2.cpp

@@ -1,12 +0,0 @@
-// Copyright (c) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests that the swap headers work when both are included
-
-#include <boost/utility/swap.hpp>
-#include <boost/swap.hpp>
-
-

swap/test/no_ambiguity_in_boost.cpp

@@ -1,44 +0,0 @@
-// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// boost::swap internally does an unqualified function call to swap.
-// This could have led to ambiguity or infinite recursion, when the
-// objects to be swapped would themselves be from the boost namespace.
-// If so, boost::swap itself might be found by argument dependent lookup.
-// The implementation of boost::swap resolves this issue by giving
-// boost::swap two template argumetns, thereby making it less specialized
-// than std::swap.
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-//Put test class in namespace boost
-namespace boost
-{
-  #include "./swap_test_class.hpp"
-}
-
-
-int test_main(int, char*[])
-{
-  const boost::swap_test_class initial_value1(1);
-  const boost::swap_test_class initial_value2(2);
-
-  boost::swap_test_class object1 = initial_value1;
-  boost::swap_test_class object2 = initial_value2;
-
-  boost::swap_test_class::reset();
-  boost::swap(object1,object2);
-
-  BOOST_CHECK(object1 == initial_value2);
-  BOOST_CHECK(object2 == initial_value1);
-  BOOST_CHECK_EQUAL(boost::swap_test_class::swap_count(),0);
-  BOOST_CHECK_EQUAL(boost::swap_test_class::copy_count(),3);
-
-  return 0;
-}
-

swap/test/primitive.cpp

@@ -1,23 +0,0 @@
-// Copyright (c) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-int test_main(int, char*[])
-{
-  int object1 = 1;
-  int object2 = 2;
-
-  boost::swap(object1,object2);
-
-  BOOST_CHECK_EQUAL(object1,2);
-  BOOST_CHECK_EQUAL(object2,1);
-
-  return 0;
-}
-

swap/test/root_header_1.cpp

@@ -1,10 +0,0 @@
-// Copyright (c) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests that the swap header compiles as a standalone translation unit
-
-#include <boost/swap.hpp>
-

swap/test/root_header_2.cpp

@@ -1,11 +0,0 @@
-// Copyright (c) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests that the swap header include guards work correctly
-
-#include <boost/swap.hpp>
-#include <boost/swap.hpp>
-

swap/test/specialized_in_boost.cpp

@@ -1,45 +0,0 @@
-// Copyright (c) 2007 Joseph Gauterin
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-//Put test class in namespace boost
-namespace boost
-{
-  #include "./swap_test_class.hpp"
-}
-
-//Provide swap function in namespace boost
-namespace boost
-{
-  void swap(swap_test_class& left, swap_test_class& right)
-  {
-    left.swap(right);
-  }
-}
-
-int test_main(int, char*[])
-{
-  const boost::swap_test_class initial_value1(1);
-  const boost::swap_test_class initial_value2(2);
-
-  boost::swap_test_class object1 = initial_value1;
-  boost::swap_test_class object2 = initial_value2;
-  
-  boost::swap_test_class::reset();
-  boost::swap(object1,object2);
-
-  BOOST_CHECK(object1 == initial_value2);
-  BOOST_CHECK(object2 == initial_value1);
-
-  BOOST_CHECK_EQUAL(boost::swap_test_class::swap_count(),1);
-  BOOST_CHECK_EQUAL(boost::swap_test_class::copy_count(),0);
-
-  return 0;
-}
-

swap/test/specialized_in_boost_and_other.cpp

@@ -1,64 +0,0 @@
-// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
-//
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-// Tests whether instances of a class from a namespace other than boost are
-// properly swapped, when both boost and the other namespace have a custom
-// swap function for that class. Note that it shouldn't be necessary for a class
-// in an other namespace to have a custom swap function in boost, because the
-// boost::swap utility should find the swap function in the other namespace, by
-// argument dependent lookup (ADL). Unfortunately ADL isn't fully implemented
-// by some specific compiler versions, including Intel C++ 8.1, MSVC 7.1, and 
-// Borland 5.9.3. Users of those compilers might consider adding a swap overload
-// to the boost namespace.
-
-#include <boost/utility/swap.hpp>
-#define BOOST_INCLUDE_MAIN
-#include <boost/test/test_tools.hpp>
-
-//Put test class in namespace other
-namespace other
-{
-  #include "./swap_test_class.hpp"
-}
-
-//Provide swap function in namespace boost
-namespace boost
-{
-  void swap(::other::swap_test_class& left, ::other::swap_test_class& right)
-  {
-    left.swap(right);
-  }
-}
-
-//Provide swap function in namespace other
-namespace other
-{
-  void swap(swap_test_class& left, swap_test_class& right)
-  {
-    left.swap(right);
-  }
-}
-
-int test_main(int, char*[])
-{
-  const other::swap_test_class initial_value1(1);
-  const other::swap_test_class initial_value2(2);
-
-  other::swap_test_class object1 = initial_value1;
-  other::swap_test_class object2 = initial_value2;
-  
-  other::swap_test_class::reset();
-  boost::swap(object1,object2);
-
-  BOOST_CHECK(object1 == initial_value2);
-  BOOST_CHECK(object2 == initial_value1);
-  
-  BOOST_CHECK_EQUAL(other::swap_test_class::swap_count(),1);
-  BOOST_CHECK_EQUAL(other::swap_test_class::copy_count(),0);
-
-  return 0;
-}
-