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add sprout::swallow

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This commit is contained in:
bolero-MURAKAMI 2018-05-29 19:30:30 +09:00
parent 582e50e4a7
commit 10e239f933
4 changed files with 166 additions and 48 deletions
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6
sprout/tuple/tuple/tuple_decl.hpp
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@ -18,7 +18,7 @@
#include <sprout/utility/forward.hpp>
#include <sprout/utility/move.hpp>
#include <sprout/utility/swap.hpp>
#include <sprout/utility/eat.hpp>
#include <sprout/utility/swallow.hpp>
#include <sprout/utility/pack.hpp>
#include <sprout/utility/pair/pair_fwd.hpp>
#include <sprout/type_traits/integral_constant.hpp>
@ -286,7 +286,7 @@ namespace sprout {
template<sprout::index_t... Indexes>
SPROUT_CXX14_CONSTEXPR void
swap_impl(tuple& other, sprout::index_tuple<Indexes...>) {
sprout::eat((sprout::swap(base_type::template get<Indexes>(*this), base_type::template get<Indexes>(other)), 0)...);
sprout::swallow({(sprout::swap(base_type::template get<Indexes>(*this), base_type::template get<Indexes>(other)), 0)...});
}
template<typename Tuple>
SPROUT_CXX14_CONSTEXPR void
@ -297,7 +297,7 @@ namespace sprout {
SPROUT_CXX14_CONSTEXPR void
assign_impl(Tuple&& t, sprout::index_tuple<Indexes...>) {
typedef typename std::decay<Tuple>::type type;
sprout::eat((sprout::eat(base_type::template get<Indexes>(*this) = sprout::move(type::template get<Indexes>(SPROUT_FORWARD(Tuple, t)))), 0)...);
sprout::swallow({(base_type::template get<Indexes>(*this) = sprout::move(type::template get<Indexes>(SPROUT_FORWARD(Tuple, t))), 0)...});
}
template<sprout::index_t... Indexes>
SPROUT_CONSTEXPR std::tuple<Types...>

1
sprout/utility/operation_ext.hpp
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@ -10,6 +10,7 @@
#include <sprout/config.hpp>
#include <sprout/utility/compare_pointees.hpp>
#include <sprout/utility/swallow.hpp>
#include <sprout/utility/eat.hpp>
#include <sprout/utility/ignore_unused.hpp>
#include <sprout/utility/limited.hpp>

23
sprout/utility/swallow.hpp Normal file
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@ -0,0 +1,23 @@
/*=============================================================================
Copyright (c) 2011-2017 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_UTILITY_SWALLOW_HPP
#define SPROUT_UTILITY_SWALLOW_HPP
#include <initializer_list>
#include <sprout/config.hpp>
namespace sprout {
//
// swallow
//
template<typename T>
inline SPROUT_CXX14_CONSTEXPR void
swallow(std::initializer_list<T>) SPROUT_NOEXCEPT {}
} // namespace sprout
#endif // #ifndef SPROUT_UTILITY_SWALLOW_HPP