| //Copyright (c) 2006-2009 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_7E48761AD92811DC9011477D56D89593 |
| #define UUID_7E48761AD92811DC9011477D56D89593 |
| #if defined(__GNUC__) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS) |
| #pragma GCC system_header |
| #endif |
| #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS) |
| #pragma warning(push,1) |
| #endif |
| |
| #include <boost/utility/enable_if.hpp> |
| #include <boost/exception/detail/is_output_streamable.hpp> |
| #include <sstream> |
| |
| namespace |
| boost |
| { |
| namespace |
| to_string_detail |
| { |
| template <class T> |
| typename disable_if<is_output_streamable<T>,char>::type to_string( T const & ); |
| |
| template <class,bool IsOutputStreamable> |
| struct has_to_string_impl; |
| |
| template <class T> |
| struct |
| has_to_string_impl<T,true> |
| { |
| enum e { value=1 }; |
| }; |
| |
| template <class T> |
| struct |
| has_to_string_impl<T,false> |
| { |
| static T const & f(); |
| enum e { value=1!=sizeof(to_string(f())) }; |
| }; |
| } |
| |
| template <class T> |
| inline |
| typename enable_if<is_output_streamable<T>,std::string>::type |
| to_string( T const & x ) |
| { |
| std::ostringstream out; |
| out << x; |
| return out.str(); |
| } |
| |
| template <class T> |
| struct |
| has_to_string |
| { |
| enum e { value=to_string_detail::has_to_string_impl<T,is_output_streamable<T>::value>::value }; |
| }; |
| |
| template <class T,class U> |
| inline |
| std::string |
| to_string( std::pair<T,U> const & x ) |
| { |
| return std::string("(") + to_string(x.first) + ',' + to_string(x.second) + ')'; |
| } |
| |
| inline |
| std::string |
| to_string( std::exception const & x ) |
| { |
| return x.what(); |
| } |
| } |
| |
| #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS) |
| #pragma warning(pop) |
| #endif |
| #endif |