range/algorithm/generate.hpp

0001 //  Copyright Neil Groves 2009. Use, modification and
0002 //  distribution is subject to the Boost Software License, Version
0003 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
0004 //  http://www.boost.org/LICENSE_1_0.txt)
0005 //
0006 //
0007 // For more information, see http://www.boost.org/libs/range/
0008 //
0009 #ifndef BOOST_RANGE_ALGORITHM_GENERATE_HPP_INCLUDED
0010 #define BOOST_RANGE_ALGORITHM_GENERATE_HPP_INCLUDED
0011
0012 #include <boost/concept_check.hpp>
0013 #include <boost/range/begin.hpp>
0014 #include <boost/range/end.hpp>
0015 #include <boost/range/concepts.hpp>
0016 #include <algorithm>
0017
0018 namespace boost
0019 {
0020     namespace range
0021     {
0022 /// \brief template function generate
0023 ///
0024 /// range-based version of the generate std algorithm
0025 ///
0026 /// \pre ForwardRange is a model of the ForwardRangeConcept
0027 /// \pre Generator is a model of the UnaryFunctionConcept
0028 template< class ForwardRange, class Generator >
0029 inline ForwardRange& generate( ForwardRange& rng, Generator gen )
0030 {
0031     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
0032     std::generate(boost::begin(rng), boost::end(rng), gen);
0033     return rng;
0034 }
0035
0036 /// \overload
0037 template< class ForwardRange, class Generator >
0038 inline const ForwardRange& generate( const ForwardRange& rng, Generator gen )
0039 {
0040     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
0041     std::generate(boost::begin(rng), boost::end(rng), gen);
0042     return rng;
0043 }
0044
0045     } // namespace range
0046     using range::generate;
0047 } // namespace boost
0048
0049 #endif // include guard