EVOLUTION-MANAGER

Edit File: empty.hpp

/////////////////////////////////////////////////////////////////////////////// /// \file empty.hpp /// Proto callables for boost::empty() // // Copyright 2012 Eric Niebler. Distributed under 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) #ifndef BOOST_PROTO_FUNCTIONAL_RANGE_EMPTY_HPP_EAN_27_08_2012 #define BOOST_PROTO_FUNCTIONAL_RANGE_EMPTY_HPP_EAN_27_08_2012 #include <boost/range/empty.hpp> #include <boost/proto/proto_fwd.hpp> namespace boost { namespace proto { namespace functional { // A PolymorphicFunctionObject that wraps boost::empty() struct empty { BOOST_PROTO_CALLABLE() typedef bool result_type; template<typename Rng> bool operator()(Rng const &rng) const { return boost::empty(rng); } }; }}} #endif