axmol/thirdparty/range-v3/include/range/v3/action/remove.hpp

75 lines
2.3 KiB
C++

/// \file
// Range v3 library
//
// Copyright Andrey Diduh 2019
//
// 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)
//
// Project home: https://github.com/ericniebler/range-v3
//
#ifndef RANGES_V3_ACTION_REMOVE_HPP
#define RANGES_V3_ACTION_REMOVE_HPP
#include <meta/meta.hpp>
#include <range/v3/range_fwd.hpp>
#include <range/v3/action/action.hpp>
#include <range/v3/action/erase.hpp>
#include <range/v3/algorithm/remove.hpp>
#include <range/v3/functional/bind_back.hpp>
#include <range/v3/range/concepts.hpp>
#include <range/v3/range/traits.hpp>
#include <range/v3/utility/static_const.hpp>
#include <range/v3/detail/prologue.hpp>
namespace ranges
{
/// \addtogroup group-actions
/// @{
namespace actions
{
struct remove_fn
{
template(typename V, typename P)(
requires (!range<V>))
constexpr auto operator()(V && value, P proj) const
{
return make_action_closure(
bind_back(remove_fn{}, static_cast<V &&>(value), std::move(proj)));
}
template<typename V>
constexpr auto operator()(V && value) const
{
return make_action_closure(
bind_back(remove_fn{}, static_cast<V &&>(value), identity{}));
}
template(typename Rng, typename V, typename P = identity)(
requires forward_range<Rng> AND permutable<iterator_t<Rng>> AND
erasable_range<Rng, iterator_t<Rng>, sentinel_t<Rng>> AND
indirect_relation<equal_to, projected<iterator_t<Rng>, P>,
V const *>)
Rng operator()(Rng && rng, V const & value, P proj = {}) const
{
auto it = ranges::remove(rng, value, std::move(proj));
ranges::erase(rng, it, ranges::end(rng));
return static_cast<Rng &&>(rng);
}
};
/// \relates actions::remove_fn
RANGES_INLINE_VARIABLE(remove_fn, remove)
} // namespace actions
/// @}
} // namespace ranges
#include <range/v3/detail/epilogue.hpp>
#endif