Added BOOST_ATTRIBUTE_NORETURN to suppress warnings in boost::throw_exception

[SVN r54683]

include/boost/exception/detail/attribute_noreturn.hpp

@@ -0,0 +1,19 @@
+//Copyright (c) 2009 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_61531AB0680611DEADD5846855D89593
+#define UUID_61531AB0680611DEADD5846855D89593
+
+#include <boost/config.hpp>
+
+#if defined(BOOST_MSVC)
+#define BOOST_ATTRIBUTE_NORETURN __declspec(noreturn)
+#elif defined(__GNUC__)
+#define BOOST_ATTRIBUTE_NORETURN __attribute__((noreturn))
+#else
+#define BOOST_ATTRIBUTE_NORETURN
+#endif
+
+#endif

include/boost/throw_exception.hpp

@@ -20,7 +20,7 @@
 //  http://www.boost.org/libs/utility/throw_exception.html
 //
 
-#include <boost/config.hpp>
+#include <boost/exception/detail/attribute_noreturn.hpp>
 #include <boost/detail/workaround.hpp>
 #include <exception>
 
@@ -54,7 +54,7 @@ void throw_exception( std::exception const & e ); // user defined
 
 inline void throw_exception_assert_compatibility( std::exception const & ) { }
 
-template<class E> inline void throw_exception( E const & e )
+template<class E> BOOST_ATTRIBUTE_NORETURN inline void throw_exception( E const & e )
 {
     //All boost exceptions are required to derive std::exception,
     //to ensure compatibility with BOOST_NO_EXCEPTIONS.