author | Richard Taylor <richard.i.taylor@nokia.com> |
Thu, 18 Mar 2010 15:12:39 +0000 | |
branch | wip |
changeset 381 | 8052c8afe93e |
parent 0 | 044383f39525 |
permissions | -rw-r--r-- |
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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 UUID_7E48761AD92811DC9011477D56D89593 |
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#define UUID_7E48761AD92811DC9011477D56D89593 |
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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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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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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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#endif |