diff options
Diffstat (limited to 'src/third_party/boost-1.69.0/boost/range/algorithm/find_if.hpp')
-rw-r--r-- | src/third_party/boost-1.69.0/boost/range/algorithm/find_if.hpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/third_party/boost-1.69.0/boost/range/algorithm/find_if.hpp b/src/third_party/boost-1.69.0/boost/range/algorithm/find_if.hpp new file mode 100644 index 00000000000..2d1926dabb1 --- /dev/null +++ b/src/third_party/boost-1.69.0/boost/range/algorithm/find_if.hpp @@ -0,0 +1,81 @@ +// Copyright Neil Groves 2009. Use, modification and +// distribution is subject to 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) +// +// +// For more information, see http://www.boost.org/libs/range/ +// +#ifndef BOOST_RANGE_ALGORITHM_FIND_IF_HPP_INCLUDED +#define BOOST_RANGE_ALGORITHM_FIND_IF_HPP_INCLUDED + +#include <boost/concept_check.hpp> +#include <boost/range/begin.hpp> +#include <boost/range/end.hpp> +#include <boost/range/concepts.hpp> +#include <boost/range/detail/range_return.hpp> +#include <algorithm> + +namespace boost +{ + namespace range + { + +/// \brief template function find_if +/// +/// range-based version of the find_if std algorithm +/// +/// \pre SinglePassRange is a model of the SinglePassRangeConcept +/// \pre UnaryPredicate is a model of the UnaryPredicateConcept +template< class SinglePassRange, class UnaryPredicate > +inline BOOST_DEDUCED_TYPENAME disable_if< + is_const<SinglePassRange>, + BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange>::type +>::type +find_if( SinglePassRange& rng, UnaryPredicate pred ) +{ + BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> )); + return std::find_if(boost::begin(rng), boost::end(rng), pred); +} + +/// \overload +template< class SinglePassRange, class UnaryPredicate > +inline BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange>::type +find_if( const SinglePassRange& rng, UnaryPredicate pred ) +{ + BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> )); + return std::find_if(boost::begin(rng), boost::end(rng), pred); +} + +// range_return overloads + +/// \overload +template< range_return_value re, class SinglePassRange, class UnaryPredicate > +inline BOOST_DEDUCED_TYPENAME disable_if< + is_const<SinglePassRange>, + BOOST_DEDUCED_TYPENAME range_return<SinglePassRange,re>::type +>::type +find_if( SinglePassRange& rng, UnaryPredicate pred ) +{ + BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> )); + return range_return<SinglePassRange,re>:: + pack(std::find_if(boost::begin(rng), boost::end(rng), pred), + rng); +} + +/// \overload +template< range_return_value re, class SinglePassRange, class UnaryPredicate > +inline BOOST_DEDUCED_TYPENAME range_return<const SinglePassRange,re>::type +find_if( const SinglePassRange& rng, UnaryPredicate pred ) +{ + BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> )); + return range_return<const SinglePassRange,re>:: + pack(std::find_if(boost::begin(rng), boost::end(rng), pred), + rng); +} + + } // namespace range + using range::find_if; +} // namespace boost + +#endif // include guard |