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159 lines
4.5 KiB
159 lines
4.5 KiB
// Boost.Range library |
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// |
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// Copyright Thorsten Ottosen 2003-2004. Use, modification and |
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// distribution is subject to the Boost Software License, Version |
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// For more information, see http://www.boost.org/libs/range/ |
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// |
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#ifndef BOOST_RANGE_DETAIL_SIZE_HPP |
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#define BOOST_RANGE_DETAIL_SIZE_HPP |
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#include <boost/config.hpp> // BOOST_MSVC |
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#include <boost/detail/workaround.hpp> |
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#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) |
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# include <boost/range/detail/vc6/size.hpp> |
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#else |
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# include <boost/range/detail/implementation_help.hpp> |
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# include <boost/range/detail/size_type.hpp> |
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# include <boost/range/detail/common.hpp> |
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# if BOOST_WORKAROUND(BOOST_MSVC, == 1300) |
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# include <boost/range/detail/remove_extent.hpp> |
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# endif |
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# include <iterator> |
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namespace boost |
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{ |
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namespace range_detail |
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{ |
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template< typename T > |
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struct range_size_; |
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////////////////////////////////////////////////////////////////////// |
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// default |
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////////////////////////////////////////////////////////////////////// |
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template<> |
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struct range_size_<std_container_> |
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{ |
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template< typename C > |
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static BOOST_RANGE_DEDUCED_TYPENAME C::size_type fun( const C& c ) |
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{ |
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return c.size(); |
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}; |
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}; |
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////////////////////////////////////////////////////////////////////// |
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// pair |
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////////////////////////////////////////////////////////////////////// |
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template<> |
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struct range_size_<std_pair_> |
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{ |
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template< typename P > |
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static BOOST_RANGE_DEDUCED_TYPENAME range_size<P>::type |
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fun( const P& p ) |
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{ |
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return std::distance( p.first, p.second ); |
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} |
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}; |
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////////////////////////////////////////////////////////////////////// |
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// array |
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////////////////////////////////////////////////////////////////////// |
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template<> |
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struct range_size_<array_> |
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{ |
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#if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) |
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template< typename T, std::size_t sz > |
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static std::size_t fun( T BOOST_RANGE_ARRAY_REF()[sz] ) |
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{ |
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return sz; |
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} |
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#else |
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template<typename T> |
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static std::size_t fun(T& t) |
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{ |
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return remove_extent<T>::size; |
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} |
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#endif |
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}; |
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template<> |
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struct range_size_<char_array_> |
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{ |
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template< typename T, std::size_t sz > |
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static std::size_t fun( T BOOST_RANGE_ARRAY_REF()[sz] ) |
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{ |
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return boost::range_detail::array_size( boost_range_array ); |
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} |
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}; |
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template<> |
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struct range_size_<wchar_t_array_> |
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{ |
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template< typename T, std::size_t sz > |
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static std::size_t fun( T BOOST_RANGE_ARRAY_REF()[sz] ) |
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{ |
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return boost::range_detail::array_size( boost_range_array ); |
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} |
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}; |
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////////////////////////////////////////////////////////////////////// |
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// string |
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////////////////////////////////////////////////////////////////////// |
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template<> |
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struct range_size_<char_ptr_> |
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{ |
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static std::size_t fun( const char* s ) |
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{ |
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return boost::range_detail::str_size( s ); |
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} |
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}; |
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template<> |
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struct range_size_<const_char_ptr_> |
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{ |
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static std::size_t fun( const char* s ) |
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{ |
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return boost::range_detail::str_size( s ); |
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} |
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}; |
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template<> |
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struct range_size_<wchar_t_ptr_> |
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{ |
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static std::size_t fun( const wchar_t* s ) |
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{ |
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return boost::range_detail::str_size( s ); |
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} |
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}; |
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template<> |
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struct range_size_<const_wchar_t_ptr_> |
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{ |
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static std::size_t fun( const wchar_t* s ) |
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{ |
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return boost::range_detail::str_size( s ); |
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} |
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}; |
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} // namespace 'range_detail' |
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template< typename C > |
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BOOST_RANGE_DEDUCED_TYPENAME range_size<C>::type |
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size( const C& c ) |
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{ |
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return range_detail::range_size_< BOOST_RANGE_DEDUCED_TYPENAME range_detail::range<C>::type >::fun( c ); |
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} |
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} // namespace 'boost' |
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# endif |
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#endif
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