forked from boostorg/exception
51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
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//Copyright (c) 2006-2008 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_898984B4076411DD973EDFA055D89593
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#define UUID_898984B4076411DD973EDFA055D89593
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#include <ostream>
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namespace
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boost
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{
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namespace
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exception_detail
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{
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template <bool>
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struct
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is_output_streamable_dispatch
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{
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enum e { value=1 };
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};
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template <>
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struct
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is_output_streamable_dispatch<false>
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{
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enum e { value=0 };
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};
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template <class T,class CharT,class Traits>
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char operator<<( std::basic_ostream<CharT,Traits> &, T const & );
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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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enum e { value=is_output_streamable_dispatch<1!=sizeof((*(std::basic_ostream<CharT,Traits>*)0)<<(*(T*)0))>::value };
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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=exception_detail::is_output_streamable_impl<T,CharT,Traits>::value };
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};
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}
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#endif
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