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 williamr@2: //#ifdef BOOST_NO_FUNCTION_TEMPLATE_ORDERING williamr@2: //#include williamr@2: //#else williamr@2: williamr@2: #include williamr@2: #include 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