Preliminary C++0x support

[SVN r36149]

config.htm

@@ -19,6 +19,7 @@
 <a href="#macro_ref">Boost Macro Reference</a>
    <a href="#defects">Macros that describe defects</a>
    <a href="#features">Macros that describe optional features</a>
+   <a href="#cpp0x">Macros that describe C++0x features</a>
    <a href="#helpers">Boost Helper Macros</a>
    <a href="#info_macros">Boost Informational Macros</a>
    <a href="#source">Macros for libraries with separate source code</a>
@@ -869,17 +870,17 @@ void g() { return f(); }</pre>
                hash_set and hash_map; BOOST_STD_EXTENSION_NAMESPACE will provide the namespace 
                in which the two class templates reside.</td>
          </tr>
+         <tr>
+            <td>BOOST_HAS_LONG_LONG</td>
+	    <td>Compiler</td>
+            <td>The compiler supports the long long data type.</td>
+         </tr>
          <TR>
             <TD vAlign="top" width="48%">BOOST_HAS_LOG1P</TD>
             <TD vAlign="top" width="15%">Platform</TD>
             <TD vAlign="top" width="37%">The platform has the functions log1p, log1pf and 
                log1pl in &lt;math.h&gt;.</TD>
          </TR>
-         <tr>
-            <td>BOOST_HAS_LONG_LONG</td>
-            <td>Compiler</td>
-            <td>The compiler supports the long long data type.</td>
-         </tr>
          <tr>
             <td valign="top" width="48%">BOOST_HAS_MACRO_USE_FACET</td>
             <td valign="top" width="15%">Standard library</td>
@@ -1123,6 +1124,69 @@ void g() { return f(); }</pre>
                default is not present, conforming to the current C++ standard).</td>
          </tr>
       </table>
+      <h4><a name="cpp0x"></a>Macros that describe C++0x features</h4>
+      <p>The following macros describe features that are likely to be
+      included in the upcoming ISO C++ standard, C++0x.</p>
+
+      <table border="1" cellpadding="7" cellspacing="1" width="100%">
+         <tr>
+            <td valign="top" width="50%"><p align="center"><b>Macro</b></p>
+            </td>
+            <td valign="top" width="50%"><p align="center"><b>Description</b></p>
+            </td>
+         </tr>
+         <tr>
+            <td valign="top" width="50%">BOOST_CXX0X_CONCEPTS</td>
+            <td valign="top" width="50%">
+	    The compiler supports <a
+            href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2081.pdf">concepts</a>. <b>Note</b>: concepts have been
+            proposed for C++0x, but have not yet been approved for
+            inclusion in the language.
+            </td>
+         </tr>
+	 <tr>
+            <td valign="top" width="50%">BOOST_CXX0X_LONG_LONG</td>
+            <td valign="top" width="50%">
+	    The compiler supports the long long. Identical to <tt>BOOST_HAS_LONG_LONG</tt>.
+	    </td>
+	 </tr>
+	 <tr>
+            <td valign="top" width="50%">BOOST_CXX0X_PREPROCESSOR</td>
+            <td valign="top" width="50%">
+	    The compiler supports the <a
+            href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1653.htm">C99
+            preprocessor</a>, which includes variadic macros,
+            concatenation of wide string literals, and the
+            <code>_Pragma</code> operator.
+	    </td>
+	 </tr>
+         <tr>
+            <td valign="top" width="50%">BOOST_CXX0X_RVALUE_REFERENCES</td>
+            <td valign="top" width="50%">
+	    The compiler supports <a
+            href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html">rvalue
+            references</a>.
+            </td>
+         </tr>
+         <tr>
+            <td valign="top" width="50%">BOOST_CXX0X_STATIC_ASSERT</td>
+            <td valign="top" width="50%">
+	    The compiler supports <a
+            href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html">static assertions</a>.
+            </td>
+         </tr>
+         <tr>
+            <td valign="top" width="50%">BOOST_CXX0X_VARIADIC_TEMPLATES</td>
+            <td valign="top" width="50%">
+	    The compiler supports <a
+            href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2080.pdf">variadic
+            templates</a>. <b>Note</b>: variadic templates have been
+            proposed for C++0x, but have not yet been approved for
+            inclusion in the language.
+            </td>
+         </tr>
+      </table>
+      
       <h4><a name="helpers"></a>Boost Helper Macros</h4>
       <p>The following macros are either simple helpers, or macros that provide 
          workarounds for compiler/standard library defects.</p>

include/boost/config/compiler/gcc.hpp

@@ -82,7 +82,41 @@
 #define BOOST_HAS_NRVO
 #endif
 
-#define BOOST_COMPILER "GNU C++ version " __VERSION__
+//
+// C++0x features
+//
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 2)
+// C++0x features are only enabled when -std=c++0x or -std=gnu++0x are
+// passed on the command line, which in turn defines
+// __GXX_EXPERIMENTAL_CXX0X__. Note: __GXX_EXPERIMENTAL_CPP0X__ is
+// defined by some very early development versions of GCC 4.3; we will
+// remove this part of the check in the near future.
+#  if defined(__GXX_EXPERIMENTAL_CPP0X__) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+#    define BOOST_CXX0X_PREPROCESSOR
+#    define BOOST_CXX0X_STATIC_ASSERT
+#  endif
+#endif
+
+//
+// Potential C++0x features
+//
+
+// Variadic templates compiler: 
+//   http://www.generic-programming.org/~dgregor/cpp/variadic-templates.html
+#ifdef __VARIADIC_TEMPLATES
+#  define BOOST_CXX0X_VARIADIC_TEMPLATES
+#endif
+
+// ConceptGCC compiler:
+//   http://www.generic-programming.org/software/ConceptGCC/
+#ifdef __GXX_CONCEPTS__
+#  define BOOST_CXX0X_CONCEPTS
+#  define "ConceptGCC version " __VERSION__
+#endif
+
+#ifndef BOOST_COMPILER
+#  define BOOST_COMPILER "GNU C++ version " __VERSION__
+#endif
 
 //
 // versions check:
@@ -91,8 +125,8 @@
 #  error "Compiler not configured - please reconfigure"
 #endif
 //
-// last known and checked version is 4.0 (Pre-release):
+// last known and checked version is 4.3 (Pre-release):
-#if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 0))
+#if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 3))
 #  if defined(BOOST_ASSERT_CONFIG)
 #     error "Unknown compiler version - please run the configure tests and report the results"
 #  else

include/boost/config/suffix.hpp

@@ -38,6 +38,16 @@
 # endif
 #endif
 
+// BOOST_HAS_LONG_LONG implies BOOST_CXX0X_LONG_LONG, and vice-versa
+#if defined(BOOST_HAS_LONG_LONG) || defined(BOOST_CXX0X_LONG_LONG)
+#  ifndef BOOST_HAS_LONG_LONG
+#    define BOOST_HAS_LONG_LONG
+#  endif
+#  ifndef BOOST_CXX0X_LONG_LONG
+#    define BOOST_CXX0X_LONG_LONG
+#  endif
+#endif
+
 // GCC 3.x will clean up all of those nasty macro definitions that
 // BOOST_NO_CTYPE_FUNCTIONS is intended to help work around, so undefine
 // it under GCC 3.x.