This commit was manufactured by cvs2svn to create tag

'Version_1_28_0'. [SVN r13949]
This commit was manufactured by cvs2svn to create branch 'RC_1_28_0'.
2026-08-06 13:34:14 +02:00 · 2002-05-16 13:26:18 +00:00 · 2002-05-10 04:34:27 +00:00 · 2002-02-06 19:42:04 +00:00 · 2002-01-30 20:02:11 +00:00 · 2002-01-20 20:08:46 +00:00
6 changed files with 87 additions and 67 deletions
@@ -1,3 +1,5 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+
 <html>

 <head>
@@ -9,46 +11,49 @@

 <body bgcolor="#FFFFFF" text="#000000">

-<h1><img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" align="center" width="277" height="86">Header
+<h1><img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" align="middle" width="277" height="86">Header
 <a href="../../boost/cast.hpp">boost/cast.hpp</a></h1>
+
 <h2><a name="Cast Functions">Cast Functions</a></h2>
-<p>The <code>header <a href="../../boost/cast.hpp">boost/cast.hpp</a></code>
+
+<p>The header <a href="../../boost/cast.hpp">boost/cast.hpp</a>
 provides <a href="#Polymorphic_cast"><b>polymorphic_cast</b></a>, <a href="#Polymorphic_cast"><b>polymorphic_downcast</b></a>,
 and <a href="#numeric_cast"><b>numeric_cast</b></a> function templates designed
 to complement the C++ built-in casts.</p>
-<p>The program&nbsp;<a href="cast_test.cpp">cast_test.cpp</a> can be used to
+
+<p>The program <a href="cast_test.cpp">cast_test.cpp</a> can be used to
 verify these function templates work as expected.</p>
 <h3><a name="Polymorphic_cast">Polymorphic casts</a></h3>
 <p>Pointers to polymorphic objects (objects of classes which define at least one
-virtual function) are sometimes downcast or crosscast.&nbsp; Downcasting means
-casting from a base class to a derived class.&nbsp; Crosscasting means casting
+virtual function) are sometimes downcast or crosscast. Downcasting means
+casting from a base class to a derived class. Crosscasting means casting
 across an inheritance hierarchy diagram, such as from one base to the other in a
 <b>Y</b> diagram hierarchy.</p>
 <p>Such casts can be done with old-style casts, but this approach is never to be
-recommended.&nbsp; Old-style casts are sorely lacking in type safety, suffer
+recommended. Old-style casts are sorely lacking in type safety, suffer
 poor readability, and are difficult to locate with search tools.</p>
 <p>The C++ built-in <b>static_cast</b> can be used for efficiently downcasting
 pointers to polymorphic objects, but provides no error detection for the case
 where the pointer being cast actually points to the wrong derived class. The <b>polymorphic_downcast</b>
 template retains the efficiency of <b>static_cast</b> for non-debug
 compilations, but for debug compilations adds safety via an assert() that a <b>dynamic_cast</b>
-succeeds.&nbsp;<b>&nbsp;</b></p>
+succeeds.</p>
 <p>The C++ built-in <b>dynamic_cast</b> can be used for downcasts and crosscasts
 of pointers to polymorphic objects, but error notification in the form of a
 returned value of 0 is inconvenient to test, or worse yet, easy to forget to
-test.&nbsp; The <b>polymorphic_cast</b> template performs a <b>dynamic_cast</b>,
+test. The <b>polymorphic_cast</b> template performs a <b>dynamic_cast</b>,
 and throws an exception if the <b>dynamic_cast</b> returns 0.</p>
 <p>A <b>polymorphic_downcast</b> is preferred when debug-mode tests will cover
 100% of the object types possibly cast and when non-debug-mode efficiency is an
 issue. If these two conditions are not present, <b>polymorphic_cast</b> is
-preferred.&nbsp; It must also be used for crosscasts.&nbsp; It does an assert(
+preferred. It must also be used for crosscasts. It does an assert(
 dynamic_cast&lt;Derived&gt;(x) == x ) where x is the base pointer, ensuring that
 not only is a non-zero pointer returned, but also that it correct in the
 presence of multiple inheritance.<b> Warning:</b>: Because <b>polymorphic_downcast</b>
 uses assert(), it violates the one definition rule (ODR) if NDEBUG is inconsistently
-defined across translation units.&nbsp; [See ISO Std 3.2]</p>
+defined across translation units. [See ISO Std 3.2]</p>
 <p>The C++ built-in <b>dynamic_cast</b> must be used to cast references rather
-than pointers.&nbsp; It is also the only cast that can be used to check whether
+than pointers. It is also the only cast that can be used to check whether
 a given interface is supported; in that case a return of 0 isn't an error
 condition.</p>
 <h3>polymorphic_cast and polymorphic_downcast synopsis</h3>
@@ -132,7 +137,7 @@ Abrahams</a>.<b><br>
 numeric_cast</b> was contributed by <a href="../../people/kevlin_henney.htm">Kevlin
 Henney</a>.</p>
 <hr>
-<p>Revised&nbsp; <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan
+<p>Revised <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan
 -->06 January, 2001<!--webbot bot="Timestamp" endspan i-checksum="38320"
 --></p>
 <p>© Copyright boost.org 1999. Permission to copy, use, modify, sell and
@@ -9,13 +9,14 @@
 //  See http://www.boost.org for most recent version including documentation.

 //  Revision History
+//   20 Jan 01  removed use of <limits> for portability to raw GCC (David Abrahams)
 //   28 Jun 00  implicit_cast removed (Beman Dawes)
 //   30 Aug 99  value_cast replaced by numeric_cast
 //    3 Aug 99  Initial Version

 #include <iostream>
 #include <climits>
-#include <limits>
+#include <cfloat>   // for DBL_MAX (Peter Schmid)
 #include <boost/cast.hpp>

 #  if SCHAR_MAX == LONG_MAX
@@ -95,8 +96,8 @@ int main( int argc, char * argv[] )
    //  tests which should succeed
    long small_value = 1;
    long small_negative_value = -1;
-    long large_value = std::numeric_limits<long>::max();
-    long large_negative_value = std::numeric_limits<long>::min();
+    long large_value = LONG_MAX;
+    long large_negative_value = LONG_MIN;
    signed char c = 0;

    c = large_value;  // see if compiler generates warning
@@ -142,7 +143,7 @@ int main( int argc, char * argv[] )
    if ( !caught_exception ) ++err_count;

    caught_exception = false;
-    try { numeric_cast<int>( std::numeric_limits<double>::max() ); }
+    try { numeric_cast<int>( DBL_MAX ); }
    catch (bad_numeric_cast)
        { cout<<"caught bad_numeric_cast #5\n"; caught_exception = true; }
    if ( !caught_exception ) ++err_count;
@@ -9,6 +9,17 @@
 //  See http://www.boost.org for most recent version including documentation.

 //  Revision History
+//  02 Apr 01  Removed BOOST_NO_LIMITS workarounds and included 
+//             <boost/limits.hpp> instead (the workaround did not 
+//             actually compile when BOOST_NO_LIMITS was defined in 
+//             any case, so we loose nothing). (John Maddock)
+//  21 Jan 01  Undid a bug I introduced yesterday. numeric_cast<> never
+//             worked with stock GCC; trying to get it to do that broke
+//             vc-stlport.
+//  20 Jan 01  Moved BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS to config.hpp.
+//             Removed unused BOOST_EXPLICIT_TARGET macro. Moved
+//             boost::detail::type to boost/type.hpp. Made it compile with
+//             stock gcc again (Dave Abrahams)
 //  29 Nov 00  Remove nested namespace cast, cleanup spacing before Formal
 //             Review (Beman Dawes)
 //  19 Oct 00  Fix numeric_cast for floating-point types (Dave Abrahams)
@@ -34,8 +45,9 @@

 # include <boost/config.hpp>
 # include <cassert>
-# include <typeinfo> 
-# include <limits>
+# include <typeinfo>
+# include <boost/type.hpp>
+# include <boost/limits.hpp>

 //  It has been demonstrated numerous times that MSVC 6.0 fails silently at link
 //  time if you use a template function which has template parameters that don't
@@ -43,20 +55,13 @@
 //
 //  TODO: Add this to config.hpp?
 # if defined(BOOST_MSVC) && BOOST_MSVC <= 1200 // 1200 = VC6
-#  define BOOST_EXPLICIT_DEFAULT_TARGET , ::boost::detail::type_wrapper<Target>* = 0
-#  define BOOST_EXPLICIT_TARGET ,::boost::detail::type_wrapper<Target>*
+#  define BOOST_EXPLICIT_DEFAULT_TARGET , ::boost::type<Target>* = 0
 # else
 #  define BOOST_EXPLICIT_DEFAULT_TARGET
-#  define BOOST_EXPLICIT_TARGET
 # endif

 namespace boost
 {
-  namespace detail
-  {
-    template <class T> struct type_wrapper {};
-  }
-
 //  See the documentation for descriptions of how to choose between
 //  static_cast<>, dynamic_cast<>, polymorphic_cast<> and polymorphic_downcast<>

@@ -116,18 +121,7 @@ namespace boost

 //  numeric_cast  ------------------------------------------------------------//

-// Move to config.hpp?
-#if defined(_RWSTD_VER) || (defined(__SGI_STL_PORT) && __SGI_STL_PORT <= 0x400 && __STL_STATIC_CONST_INIT_BUG)
-// STLPort 4.0 doesn't define the static constants in numeric_limits<> so that they
-// can be used at compile time if the compiler bug indicated by
-// __STL_STATIC_CONST_INIT_BUG is present.
-
-// Rogue wave STL (C++ Builder) also has broken numeric_limits
-// with default template defining members out of line.
-# define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
-#endif
-
-#ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+#if !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) || defined(BOOST_SGI_CPP_LIMITS)
  
    namespace detail
    {
@@ -139,7 +133,7 @@ namespace boost
         template <class T>
         struct limits : std::numeric_limits<T>
         {
-    	   static inline T min()
+         static inline T min()
 # ifndef __GNUC__ // bug workaround courtesy Jens Maurer
             {
                 return std::numeric_limits<T>::min() >= 0
@@ -150,7 +144,7 @@ namespace boost
 # else
                 ;
 # endif
-	       };
+         };
       };

 # ifdef __GNUC__ // bug workaround courtesy Jens Maurer
@@ -271,8 +265,9 @@ namespace boost
 #  pragma warning(disable : 4018)
 #  pragma warning(disable : 4146)
 #elif defined(__BORLANDC__)
-#pragma option push -w-8041
+#  pragma option push -w-8041
 # endif
+
       // Move to namespace boost in utility.hpp?
       template <class T>
       struct fixed_numeric_limits : public std::numeric_limits<T>
@@ -283,10 +278,11 @@ namespace boost
                   ? T(-std::numeric_limits<T>::max()) : std::numeric_limits<T>::min();
           }
       };
+  
 # if BOOST_MSVC
 #  pragma warning(pop)
 #elif defined(__BORLANDC__)
-#pragma option pop
+#  pragma option pop
 # endif
  } // namespace detail
  
@@ -298,8 +294,8 @@ namespace boost
        // typedefs abbreviating respective trait classes
        typedef std::numeric_limits<Source> arg_traits;
        typedef detail::fixed_numeric_limits<Target> result_traits;
-
-#ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+        
+#if !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) || defined(BOOST_SGI_CPP_LIMITS)
        // typedefs that act as compile time assertions
        // (to be replaced by boost compile time assertions
        // as and when they become available and are stable)
@@ -338,7 +334,6 @@ namespace boost
    } // numeric_cast

 #  undef BOOST_EXPLICIT_DEFAULT_TARGET
-#  undef BOOST_EXPLICIT_TARGET

 } // namespace boost

@@ -13,11 +13,18 @@
 // where: tested with MSVC 6.0, BCC 5.5, and g++ 2.91

 #include <boost/config.hpp>
-# ifndef BOOST_NO_STRINGSTREAM
-#  include <sstream>
-# else
-#  include <strstream>
+
+// Some sstream implementations are broken for the purposes of lexical cast.
+# if defined(BOOST_NO_STRINGSTREAM)
+#  define BOOST_LEXICAL_CAST_USE_STRSTREAM
 # endif
+
+#ifdef BOOST_LEXICAL_CAST_USE_STRSTREAM
+# include <strstream>
+#else
+# include <sstream>
+#endif
+
 #include <typeinfo>

 namespace boost
@@ -39,10 +46,10 @@ namespace boost
    template<typename Target, typename Source>
    Target lexical_cast(Source arg)
    {
-# ifndef BOOST_NO_STRINGSTREAM
-        std::stringstream interpreter;
-# else
+# ifdef BOOST_LEXICAL_CAST_USE_STRSTREAM
        std::strstream interpreter; // for out-of-the-box g++ 2.95.2
+# else
+        std::stringstream interpreter;
 # endif
        Target result;

@@ -54,14 +61,16 @@ namespace boost
    }
 }

-// Copyright Kevlin Henney, 2000. All rights reserved.
+// Copyright Kevlin Henney, 2000, 2001, 2002. All rights reserved.
 //
 // Permission to use, copy, modify, and distribute this software for any
 // purpose is hereby granted without fee, provided that this copyright and
-// permissions notice appear in all copies and derivatives, and that no
-// charge may be made for the software and its documentation except to cover
-// cost of distribution.
+// permissions notice appear in all copies and derivatives.
 //
 // This software is provided "as is" without express or implied warranty.

+#ifdef BOOST_LEXICAL_CAST_USE_STRSTREAM
+# undef BOOST_LEXICAL_CAST_USE_STRSTREAM
+#endif
+
 #endif
@@ -12,13 +12,13 @@
 <a href="../../boost/lexical_cast.hpp">boost/lexical_cast.hpp</a></h1>

 <ul>
-    <li><a href="#motivation">Motivation</li>
-    <li></a><a href="#examples">Examples</li>
-    <li></a><a href="#synopsis">Synopsis</li>
-    <li></a><a href="#lexical_cast"><code>lexical_cast</code></li>
-    <li></a><a href="#bad_lexical_cast"><code>bad_lexical_cast</code></li>
-    <li></a><a href="#portability">Portability</li>
-    <li></a><a href="#future">Future directions</li>
+    <li><a href="#motivation">Motivation</a></li>
+    <li><a href="#examples">Examples</a></li>
+    <li><a href="#synopsis">Synopsis</a></li>
+    <li><a href="#lexical_cast"><code>lexical_cast</code></a></li>
+    <li><a href="#bad_lexical_cast"><code>bad_lexical_cast</code></a></li>
+    <li><a href="#portability">Portability</a></li>
+    <li><a href="#future">Future directions</a></li>
 </ul>

 <hr>
@@ -127,7 +127,7 @@ void log_errno(int yoko)
 <hr>
 <h2><a name="synopsis">Synopsis</a></h2>

-Library features defined in <a href="lexical_cast.hpp"><code>&quot;boost/lexical_cast.hpp&quot;</code></a>:
+Library features defined in <a href="../../boost/lexical_cast.hpp"><code>&quot;boost/lexical_cast.hpp&quot;</code></a>:

 <blockquote>
 <pre>
@@ -2,6 +2,9 @@
 // who:   developed by Kevlin Henney
 // when:  November 2000
 // where: tested with BCC 5.5, MSVC 6.0, and g++ 2.91
+//
+// ChangeLog:
+//      20 Jan 2001 - Fixed a warning for MSVC (Dave Abrahams)

 #ifndef TEST_INCLUDED
 #define TEST_INCLUDED
@@ -40,6 +43,13 @@ namespace test // failure exception used to indicate checked test failures
        {
        }

+        // std::~string has no exception-specification (could throw anything),
+	// but we need to be compatible with std::~exception's empty one
+        // see std::15.4p13 and std::15.4p3
+        ~failure() throw()
+        {
+        }
+
    public: // usage

        virtual const char * what() const throw()
@@ -104,14 +114,14 @@ namespace test // test utilities
        check(lhs != rhs, "expected unequal values: " + description);
    }

-    inline void check_null(const void * ptr, const std::string & description)
+    inline void check_null(const void* ptr, const std::string & description)
    {
        check(!ptr, "expected null pointer: " + description);
    }

-    inline void check_non_null(const void * ptr, const std::string & description)
+    inline void check_non_null(const void* ptr, const std::string & description)
    {
-        check(ptr, "expected non-null pointer: " + description);
+        check(ptr != 0, "expected non-null pointer: " + description);
    }
 }
Author	SHA1	Message	Date
nobody	c35f326490	This commit was manufactured by cvs2svn to create tag 'Version_1_28_0'. [SVN r13949]	2002-05-16 13:26:18 +00:00
nobody	175c00ea3e	This commit was manufactured by cvs2svn to create branch 'RC_1_28_0'. [SVN r13795]	2002-05-10 04:34:27 +00:00
Darin Adler	23e5f7cca3	New casts for smart pointers. [SVN r12743]	2002-02-06 19:42:04 +00:00
Dave Abrahams	0a560dd543	Suppress warnings for MinGW [SVN r12588]	2002-01-30 20:02:11 +00:00
Beman Dawes	8cbbd7c551	Fix sstream config issue plus update license [SVN r12378]	2002-01-20 20:08:46 +00:00
Beman Dawes	805d5df9cb	remove tabs [SVN r12357]	2002-01-19 15:49:53 +00:00
Jeremy Siek	bd16c171e6	fixed lexical cast g++ sstream problem [SVN r11592]	2001-11-05 16:43:43 +00:00
Beman Dawes	66235f4b9d	Fix minor non-std HTML </a> nesting [SVN r11589]	2001-11-05 16:32:27 +00:00
Beman Dawes	8c18776800	#include <cfloat> (Peter Schmid) [SVN r10905]	2001-08-21 01:47:04 +00:00
John Maddock	6a9f713309	Fixed <limits> problem [SVN r9693]	2001-04-02 11:52:42 +00:00
Beman Dawes	27028a7d32	All final 1.20.2 changes, including fixing broken hyperlinks [SVN r9071]	2001-02-10 14:42:14 +00:00
Dave Abrahams	bc9129719e	Undid a bug I introduced yesterday. numeric_cast<> never worked with stock GCC; trying to get it to do that broke vc-stlport. [SVN r8703]	2001-01-22 04:27:00 +00:00
Dave Abrahams	3cc0db15d1	removed use of <limits> for portability to raw GCC [SVN r8670]	2001-01-21 05:37:41 +00:00
Dave Abrahams	c66f9eb92c	Fixed a warning for MSVC Added changelog [SVN r8669]	2001-01-21 05:35:13 +00:00
Dave Abrahams	e923c638b4	BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS to config.hpp. Removed unused BOOST_EXPLICIT_TARGET macro. Moved boost::detail::type to boost/type.hpp. Made it compile with stock gcc again [SVN r8663]	2001-01-21 05:07:11 +00:00
Jens Maurer	ed636dd362	bugfix: added destructor definition with empty exception specification [SVN r8651]	2001-01-20 00:09:14 +00:00