// 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) && (_MSC_VER >= 1200)

# 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( 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