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89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
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//Distributed under the Boost Software License, Version 1.0. (See accompanying
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//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef UUID_7E48761AD92811DC9011477D56D89593
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#define UUID_7E48761AD92811DC9011477D56D89593
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#if (__GNUC__*100+__GNUC_MINOR__>301) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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#pragma GCC system_header
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#endif
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#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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#pragma warning(push,1)
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#endif
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#include <boost/utility/enable_if.hpp>
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#include <boost/exception/detail/is_output_streamable.hpp>
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#include <sstream>
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namespace
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boost
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{
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template <class T,class U>
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std::string to_string( std::pair<T,U> const & );
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std::string to_string( std::exception const & );
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namespace
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to_string_detail
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{
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template <class T>
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typename disable_if<is_output_streamable<T>,char>::type to_string( T const & );
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using boost::to_string;
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template <class,bool IsOutputStreamable>
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struct has_to_string_impl;
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template <class T>
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struct
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has_to_string_impl<T,true>
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{
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enum e { value=1 };
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};
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template <class T>
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struct
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has_to_string_impl<T,false>
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{
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static T const & f();
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enum e { value=1!=sizeof(to_string(f())) };
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};
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}
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template <class T>
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inline
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typename enable_if<is_output_streamable<T>,std::string>::type
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to_string( T const & x )
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{
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std::ostringstream out;
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out << x;
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return out.str();
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}
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template <class T>
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struct
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has_to_string
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{
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enum e { value=to_string_detail::has_to_string_impl<T,is_output_streamable<T>::value>::value };
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};
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template <class T,class U>
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inline
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std::string
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to_string( std::pair<T,U> const & x )
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{
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return std::string("(") + to_string(x.first) + ',' + to_string(x.second) + ')';
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}
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inline
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std::string
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to_string( std::exception const & x )
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{
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return x.what();
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}
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}
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#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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#pragma warning(pop)
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#endif
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#endif
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