Chris@16: // Boost.Range library
Chris@16: //
Chris@16: //  Copyright Thorsten Ottosen 2003-2004. Use, modification and
Chris@16: //  distribution is subject to the Boost Software License, Version
Chris@16: //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // For more information, see http://www.boost.org/libs/range/
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_RANGE_DETAIL_IMPLEMENTATION_HELP_HPP
Chris@16: #define BOOST_RANGE_DETAIL_IMPLEMENTATION_HELP_HPP
Chris@16: 
Chris@16: #include <boost/range/config.hpp>
Chris@16: #include <boost/range/detail/common.hpp>
Chris@16: #include <boost/type_traits/is_same.hpp>
Chris@16: #include <cstddef>
Chris@16: #include <string.h>
Chris@16: 
Chris@16: #ifndef BOOST_NO_CWCHAR
Chris@16: #include <wchar.h>
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16:     namespace range_detail
Chris@16:     {
Chris@16:         template <typename T>
Chris@16:         inline void boost_range_silence_warning( const T& ) { }
Chris@16: 
Chris@16:         /////////////////////////////////////////////////////////////////////
Chris@16:         // end() help
Chris@16:         /////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16:         inline const char* str_end( const char* s, const char* )
Chris@16:         {
Chris@16:             return s + strlen( s );
Chris@16:         }
Chris@16: 
Chris@16: #ifndef BOOST_NO_CWCHAR
Chris@16:         inline const wchar_t* str_end( const wchar_t* s, const wchar_t* )
Chris@16:         {
Chris@16:             return s + wcslen( s );
Chris@16:         }
Chris@16: #else
Chris@16:         inline const wchar_t* str_end( const wchar_t* s, const wchar_t* )
Chris@16:         {
Chris@16:             if( s == 0 || s[0] == 0 )
Chris@16:                 return s;
Chris@16:             while( *++s != 0 )
Chris@16:                 ;
Chris@16:             return s;
Chris@16:         }
Chris@16: #endif
Chris@16: 
Chris@16:         template< class Char >
Chris@16:         inline Char* str_end( Char* s )
Chris@16:         {
Chris@16:             return const_cast<Char*>( str_end( s, s ) );
Chris@16:         }
Chris@16: 
Chris@16:         template< class T, std::size_t sz >
Chris@16:         inline T* array_end( T BOOST_RANGE_ARRAY_REF()[sz] )
Chris@16:         {
Chris@16:             return boost_range_array + sz;
Chris@16:         }
Chris@16: 
Chris@16:         template< class T, std::size_t sz >
Chris@16:         inline const T* array_end( const T BOOST_RANGE_ARRAY_REF()[sz] )
Chris@16:         {
Chris@16:             return boost_range_array + sz;
Chris@16:         }
Chris@16: 
Chris@16:         /////////////////////////////////////////////////////////////////////
Chris@16:         // size() help
Chris@16:         /////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16:         template< class Char >
Chris@16:         inline std::size_t str_size( const Char* const& s )
Chris@16:         {
Chris@16:             return str_end( s ) - s;
Chris@16:         }
Chris@16: 
Chris@16:         template< class T, std::size_t sz >
Chris@16:         inline std::size_t array_size( T BOOST_RANGE_ARRAY_REF()[sz] )
Chris@16:         {
Chris@16:             boost_range_silence_warning( boost_range_array );
Chris@16:             return sz;
Chris@16:         }
Chris@16: 
Chris@16:         template< class T, std::size_t sz >
Chris@16:         inline std::size_t array_size( const T BOOST_RANGE_ARRAY_REF()[sz] )
Chris@16:         {
Chris@16:             boost_range_silence_warning( boost_range_array );
Chris@16:             return sz;
Chris@16:         }
Chris@16: 
Chris@101:         inline bool is_same_address(const void* l, const void* r)
Chris@101:         {
Chris@101:             return l == r;
Chris@101:         }
Chris@101: 
Chris@101:         template<class T1, class T2>
Chris@101:         inline bool is_same_object(const T1& l, const T2& r)
Chris@101:         {
Chris@101:             return range_detail::is_same_address(&l, &r);
Chris@101:         }
Chris@101: 
Chris@16:     } // namespace 'range_detail'
Chris@16: 
Chris@16: } // namespace 'boost'
Chris@16: 
Chris@16: 
Chris@16: #endif