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https://github.com/bolero-MURAKAMI/Sprout.git
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51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2013 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_OPERATION_FIT_POP_BACK_N_HPP
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#define SPROUT_OPERATION_FIT_POP_BACK_N_HPP
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#include <cstddef>
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#include <sprout/config.hpp>
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#include <sprout/container/traits.hpp>
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#include <sprout/container/functions.hpp>
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#include <sprout/operation/fixed/pop_back_n.hpp>
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#include <sprout/sub_array/sub_array.hpp>
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#include <sprout/sub_array/sub.hpp>
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namespace sprout {
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namespace fit {
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namespace result_of {
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//
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// pop_back_n
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//
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template<std::size_t N, typename Container>
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struct pop_back_n {
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public:
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typedef sprout::sub_array<
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typename sprout::container_traits<
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typename sprout::fixed::result_of::pop_back_n<N, Container>::type
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>::internal_type
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> type;
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};
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} // namespace result_of
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//
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// pop_back_n
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//
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template<std::size_t N, typename Container>
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inline SPROUT_CONSTEXPR typename sprout::fit::result_of::pop_back_n<N, Container>::type
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pop_back_n(Container const& cont) {
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return sprout::sub_copy(
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sprout::get_internal(sprout::fixed::pop_back_n<N>(cont)),
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sprout::internal_begin_offset(cont),
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sprout::internal_end_offset(cont) - N
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);
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}
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} // namespace fit
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} // namespace sprout
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#endif // #ifndef SPROUT_OPERATION_FIT_POP_BACK_N_HPP
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