range/algorithm/replace_if.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_REPLACE_IF_HPP_INCLUDED
0010 #define BOOST_RANGE_ALGORITHM_REPLACE_IF_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
0023 /// \brief template function replace_if
0024 ///
0025 /// range-based version of the replace_if std algorithm
0026 ///
0027 /// \pre ForwardRange is a model of the ForwardRangeConcept
0028 /// \pre UnaryPredicate is a model of the UnaryPredicateConcept
0029 template< class ForwardRange, class UnaryPredicate, class Value >
0030 inline ForwardRange&
0031     replace_if(ForwardRange& rng, UnaryPredicate pred,
0032                const Value& val)
0033 {
0034     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
0035     std::replace_if(boost::begin(rng), boost::end(rng), pred, val);
0036     return rng;
0037 }
0038
0039 /// \overload
0040 template< class ForwardRange, class UnaryPredicate, class Value >
0041 inline const ForwardRange&
0042     replace_if(const ForwardRange& rng, UnaryPredicate pred,
0043                const Value& val)
0044 {
0045     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
0046     std::replace_if(boost::begin(rng), boost::end(rng), pred, val);
0047     return rng;
0048 }
0049
0050     } // namespace range
0051     using range::replace_if;
0052 } // namespace boost
0053
0054 #endif // include guard