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add C++14 constexpr copy_while, copy_until, clamp_range

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bolero-MURAKAMI 2014-04-05 21:23:26 +09:00
parent ac66209e24
commit c54c980b79
4 changed files with 124 additions and 4 deletions
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33
sprout/algorithm/cxx14/copy_while.hpp Normal file
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/*=============================================================================
Copyright (c) 2011-2014 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
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 SPROUT_ALGORITHM_CXX14_COPY_WHILE_HPP
#define SPROUT_ALGORITHM_CXX14_COPY_WHILE_HPP
#include <sprout/config.hpp>
#include <sprout/utility/pair/pair.hpp>
#include <sprout/iterator/type_traits/is_iterator_of.hpp>
#include <sprout/type_traits/enabler_if.hpp>
namespace sprout {
//
// copy_while
//
template<
typename InputIterator, typename OutputIterator, typename Predicate,
typename sprout::enabler_if<sprout::is_iterator_outputable<OutputIterator>::value>::type = sprout::enabler
>
inline SPROUT_CXX14_CONSTEXPR sprout::pair<InputIterator, OutputIterator>
copy_while(InputIterator first, InputIterator last, OutputIterator result, Predicate pred) {
for (; first != last && pred(*first); ++first) {
*result++ = *first;
}
return std::make_pair(first, result);
}
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_CXX14_COPY_WHILE_HPP