williamr@2: // Boost.Range library
williamr@2: //
williamr@2: //  Copyright Thorsten Ottosen 2003-2004. Use, modification and
williamr@2: //  distribution is subject to the Boost Software License, Version
williamr@2: //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
williamr@2: //  http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@2: // For more information, see http://www.boost.org/libs/range/
williamr@2: //
williamr@2: 
williamr@2: #ifndef BOOST_RANGE_EMPTY_HPP
williamr@2: #define BOOST_RANGE_EMPTY_HPP
williamr@2: 
williamr@2: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
williamr@2: # pragma once
williamr@2: #endif
williamr@2: 
williamr@2: #include <boost/range/config.hpp>
williamr@2: //#ifdef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
williamr@2: //#include <boost/range/detail/empty.hpp>
williamr@2: //#else
williamr@2: 
williamr@2: #include <boost/range/begin.hpp>
williamr@2: #include <boost/range/end.hpp>
williamr@2: 
williamr@2: namespace boost 
williamr@2: { 
williamr@2: namespace range_detail 
williamr@2: {
williamr@2: 
williamr@2:         //////////////////////////////////////////////////////////////////////
williamr@2:         // primary template
williamr@2:         //////////////////////////////////////////////////////////////////////
williamr@2: 
williamr@2:         template< typename C >
williamr@2:         inline bool empty( const C& c )
williamr@2:         {
williamr@2:             return boost::begin( c ) == boost::end( c );
williamr@2:         }
williamr@2: 
williamr@2:         //////////////////////////////////////////////////////////////////////
williamr@2:         // string
williamr@2:         //////////////////////////////////////////////////////////////////////
williamr@2: 
williamr@2:         inline bool empty( const char* const& s )
williamr@2:         {
williamr@2:             return s == 0 || s[0] == 0;
williamr@2:         }
williamr@2: 
williamr@2:         inline bool empty( const wchar_t* const& s )
williamr@2:         {
williamr@2:             return s == 0 || s[0] == 0;
williamr@2:         }
williamr@2:         
williamr@2: } // namespace 'range_detail'
williamr@2: 
williamr@2: template< class T >
williamr@2: inline bool empty( const T& r )
williamr@2: {
williamr@2:     return range_detail::empty( r );
williamr@2: }
williamr@2: 
williamr@2: } // namepace 'boost'
williamr@2: 
williamr@2: //#endif //  BOOST_NO_FUNCTION_TEMPLATE_ORDERING
williamr@2: 
williamr@2: #endif