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67 lines
1.7 KiB
67 lines
1.7 KiB
3 years ago
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//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 BOOST_EXCEPTION_898984B4076411DD973EDFA055D89593
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#define BOOST_EXCEPTION_898984B4076411DD973EDFA055D89593
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#include <ostream>
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#ifndef BOOST_EXCEPTION_ENABLE_WARNINGS
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#if __GNUC__*100+__GNUC_MINOR__>301
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#pragma GCC system_header
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#endif
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#ifdef __clang__
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#pragma clang system_header
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#endif
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#ifdef _MSC_VER
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#pragma warning(push,1)
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#endif
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#endif
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namespace
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boost
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{
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namespace
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to_string_detail
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{
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struct
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partial_ordering_helper1
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{
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template <class CharT,class Traits>
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partial_ordering_helper1( std::basic_ostream<CharT,Traits> & );
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};
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struct
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partial_ordering_helper2
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{
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template <class T>
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partial_ordering_helper2( T const & );
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};
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char operator<<( partial_ordering_helper1, partial_ordering_helper2 );
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template <class T,class CharT,class Traits>
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struct
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is_output_streamable_impl
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{
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static std::basic_ostream<CharT,Traits> & f();
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static T const & g();
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enum e { value=1!=(sizeof(f()<<g())) };
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};
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}
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template <class T, class CharT=char, class Traits=std::char_traits<CharT> >
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struct
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is_output_streamable
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{
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enum e { value=to_string_detail::is_output_streamable_impl<T,CharT,Traits>::value };
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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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