Sprout/sprout/algorithm/cxx14/copy_n.hpp
2014-01-08 16:48:12 +09:00

32 lines
1.1 KiB
C++

/*=============================================================================
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_CXX14_ALGORITHM_COPY_N_HPP
#define SPROUT_CXX14_ALGORITHM_COPY_N_HPP
#include <sprout/config.hpp>
#include <sprout/iterator/type_traits/is_iterator_of.hpp>
#include <sprout/type_traits/enabler_if.hpp>
namespace sprout {
//
// 25.3.1 Copy
//
template<
typename InputIterator, typename Size, typename OutputIterator,
typename sprout::enabler_if<sprout::is_iterator_outputable<OutputIterator>::value>::type = sprout::enabler
>
inline SPROUT_CXX14_CONSTEXPR OutputIterator
copy_n(InputIterator first, Size n, OutputIterator result) {
for (Size i = 0; i < n; ++i) {
*result++ = *first++;
}
return result;
}
} // namespace sprout
#endif // #ifndef SPROUT_CXX14_ALGORITHM_COPY_N_HPP