// Boost.Range library // // Copyright Thorsten Ottosen 2006. Use, modification and // distribution is subject to the Boost Software License, Version // 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // // For more information, see http://www.boost.org/libs/range/ // #ifndef BOOST_RANGE_AS_LITERAL_HPP #define BOOST_RANGE_AS_LITERAL_HPP #if defined(_MSC_VER) # pragma once #endif #ifdef BOOST_NO_FUNCTION_TEMPLATE_ORDERING #include <boost/range/detail/as_literal.hpp> #else #include <boost/range/iterator_range.hpp> #include <boost/range/detail/str_types.hpp> #include <boost/detail/workaround.hpp> #include <cstring> #ifndef BOOST_NO_CWCHAR #include <cwchar> #endif namespace boost { namespace range_detail { inline std::size_t length( const char* s ) { return strlen( s ); } #ifndef BOOST_NO_CWCHAR inline std::size_t length( const wchar_t* s ) { return wcslen( s ); } #endif // // Remark: the compiler cannot choose between T* and T[sz] // overloads, so we must put the T* internal to the // unconstrained version. // inline bool is_char_ptr( char* ) { return true; } inline bool is_char_ptr( const char* ) { return true; } #ifndef BOOST_NO_CWCHAR inline bool is_char_ptr( wchar_t* ) { return true; } inline bool is_char_ptr( const wchar_t* ) { return true; } #endif template< class T > inline long is_char_ptr( const T& /* r */ ) { return 0L; } template< class T > inline iterator_range<T*> make_range( T* const r, bool ) { return iterator_range<T*>( r, r + length(r) ); } template< class T > inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<T>::type> make_range( T& r, long ) { return boost::make_iterator_range( r ); } } template< class Range > inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<Range>::type> as_literal( Range& r ) { return range_detail::make_range( r, range_detail::is_char_ptr(r) ); } template< class Range > inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<const Range>::type> as_literal( const Range& r ) { return range_detail::make_range( r, range_detail::is_char_ptr(r) ); } template< class Char, std::size_t sz > inline iterator_range<Char*> as_literal( Char (&arr)[sz] ) { return range_detail::make_range( arr, range_detail::is_char_ptr(arr) ); } template< class Char, std::size_t sz > inline iterator_range<const Char*> as_literal( const Char (&arr)[sz] ) { return range_detail::make_range( arr, range_detail::is_char_ptr(arr) ); } } #endif // BOOST_NO_FUNCTION_TEMPLATE_ORDERING #endif