Chris@16: // Boost.Range library
Chris@16: //
Chris@16: //  Copyright Thorsten Ottosen 2006. 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_AS_LITERAL_HPP
Chris@16: #define BOOST_RANGE_AS_LITERAL_HPP
Chris@16: 
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #ifdef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
Chris@16: #include <boost/range/detail/as_literal.hpp>
Chris@16: #else
Chris@16: 
Chris@16: #include <boost/range/iterator_range.hpp>
Chris@16: #include <boost/range/detail/str_types.hpp>
Chris@16: 
Chris@16: #include <boost/detail/workaround.hpp>
Chris@16: 
Chris@16: #include <cstring>
Chris@16: #ifndef BOOST_NO_CWCHAR
Chris@16: #include <cwchar>
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16:     namespace range_detail
Chris@16:     {
Chris@16:         inline std::size_t length( const char* s )
Chris@16:         {
Chris@16:             return strlen( s );
Chris@16:         }
Chris@16: 
Chris@16: #ifndef BOOST_NO_CWCHAR
Chris@16:         inline std::size_t length( const wchar_t* s )
Chris@16:         {
Chris@16:             return wcslen( s );
Chris@16:         }
Chris@16: #endif
Chris@16: 
Chris@16:         //
Chris@16:         // Remark: the compiler cannot choose between T* and T[sz]
Chris@16:         // overloads, so we must put the T* internal to the
Chris@16:         // unconstrained version.
Chris@16:         //
Chris@16: 
Chris@16:         inline bool is_char_ptr( char* )
Chris@16:         {
Chris@16:             return true;
Chris@16:         }
Chris@16: 
Chris@16:         inline bool is_char_ptr( const char* )
Chris@16:         {
Chris@16:             return true;
Chris@16:         }
Chris@16: 
Chris@16: #ifndef BOOST_NO_CWCHAR
Chris@16:         inline bool is_char_ptr( wchar_t* )
Chris@16:         {
Chris@16:             return true;
Chris@16:         }
Chris@16: 
Chris@16:         inline bool is_char_ptr( const wchar_t* )
Chris@16:         {
Chris@16:             return true;
Chris@16:         }
Chris@16: #endif
Chris@16: 
Chris@16:         template< class T >
Chris@16:         inline long is_char_ptr( const T& /* r */ )
Chris@16:         {
Chris@16:             return 0L;
Chris@16:         }
Chris@16: 
Chris@16:         template< class T >
Chris@16:         inline iterator_range<T*>
Chris@16:         make_range( T* const r, bool )
Chris@16:         {
Chris@16:             return iterator_range<T*>( r, r + length(r) );
Chris@16:         }
Chris@16: 
Chris@16:         template< class T >
Chris@16:         inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<T>::type>
Chris@16:         make_range( T& r, long )
Chris@16:         {
Chris@16:             return boost::make_iterator_range( r );
Chris@16:         }
Chris@16: 
Chris@16:     }
Chris@16: 
Chris@16:     template< class Range >
Chris@16:     inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<Range>::type>
Chris@16:     as_literal( Range& r )
Chris@16:     {
Chris@16:         return range_detail::make_range( r, range_detail::is_char_ptr(r) );
Chris@16:     }
Chris@16: 
Chris@16:     template< class Range >
Chris@16:     inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<const Range>::type>
Chris@16:     as_literal( const Range& r )
Chris@16:     {
Chris@16:         return range_detail::make_range( r, range_detail::is_char_ptr(r) );
Chris@16:     }
Chris@16: 
Chris@16:     template< class Char, std::size_t sz >
Chris@16:     inline iterator_range<Char*> as_literal( Char (&arr)[sz] )
Chris@16:     {
Chris@16:         return range_detail::make_range( arr, range_detail::is_char_ptr(arr) );
Chris@16:     }
Chris@16: 
Chris@16:     template< class Char, std::size_t sz >
Chris@16:     inline iterator_range<const Char*> as_literal( const Char (&arr)[sz] )
Chris@16:     {
Chris@16:         return range_detail::make_range( arr, range_detail::is_char_ptr(arr) );
Chris@16:     }
Chris@16: }
Chris@16: 
Chris@16: #endif // BOOST_NO_FUNCTION_TEMPLATE_ORDERING
Chris@16: 
Chris@16: #endif