mirror of https://github.com/axmolengine/axmol.git
110 lines
3.4 KiB
C++
110 lines
3.4 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_VIEW_REMOVE_HPP
|
|
#define RANGES_V3_VIEW_REMOVE_HPP
|
|
|
|
#include <type_traits>
|
|
#include <utility>
|
|
|
|
#include <meta/meta.hpp>
|
|
|
|
#include <concepts/concepts.hpp>
|
|
|
|
#include <range/v3/range_fwd.hpp>
|
|
|
|
#include <range/v3/functional/bind_back.hpp>
|
|
#include <range/v3/functional/comparisons.hpp>
|
|
#include <range/v3/view/remove_if.hpp>
|
|
#include <range/v3/view/view.hpp>
|
|
|
|
#include <range/v3/detail/prologue.hpp>
|
|
|
|
namespace ranges
|
|
{
|
|
/// \addtogroup group-views
|
|
/// @{
|
|
namespace views
|
|
{
|
|
struct remove_base_fn
|
|
{
|
|
private:
|
|
template<typename Value>
|
|
struct pred_
|
|
{
|
|
Value value_;
|
|
template(typename T)(
|
|
requires equality_comparable_with<T, Value const &>)
|
|
bool operator()(T && other) const
|
|
{
|
|
return static_cast<T &&>(other) == value_;
|
|
}
|
|
};
|
|
|
|
public:
|
|
template(typename Rng, typename Value)(
|
|
requires move_constructible<Value> AND viewable_range<Rng> AND
|
|
input_range<Rng> AND
|
|
indirectly_comparable<iterator_t<Rng>, Value const *, equal_to>)
|
|
constexpr auto operator()(Rng && rng, Value value) const
|
|
{
|
|
return remove_if(static_cast<Rng &&>(rng),
|
|
pred_<Value>{std::move(value)});
|
|
}
|
|
|
|
template(typename Rng, typename Value, typename Proj)(
|
|
requires move_constructible<Value> AND viewable_range<Rng> AND
|
|
input_range<Rng> AND
|
|
indirectly_comparable<iterator_t<Rng>, Value const *, equal_to, Proj>)
|
|
constexpr auto operator()(Rng && rng, Value value, Proj proj) const
|
|
{
|
|
return remove_if(static_cast<Rng &&>(rng),
|
|
pred_<Value>{std::move(value)},
|
|
std::move(proj));
|
|
}
|
|
};
|
|
|
|
struct remove_bind_fn
|
|
{
|
|
template<typename Value>
|
|
constexpr auto operator()(Value value) const // TODO: underconstrained
|
|
{
|
|
return make_view_closure(bind_back(remove_base_fn{}, std::move(value)));
|
|
}
|
|
template(typename Value, typename Proj)(
|
|
requires (!range<Value>)) // TODO: underconstrained
|
|
constexpr auto operator()(Value && value, Proj proj) const
|
|
{
|
|
return make_view_closure(bind_back(
|
|
remove_base_fn{}, static_cast<Value &&>(value), std::move(proj)));
|
|
}
|
|
};
|
|
|
|
struct RANGES_EMPTY_BASES remove_fn
|
|
: remove_base_fn, remove_bind_fn
|
|
{
|
|
using remove_base_fn::operator();
|
|
using remove_bind_fn::operator();
|
|
};
|
|
|
|
/// \relates remove_fn
|
|
/// \ingroup group-views
|
|
RANGES_INLINE_VARIABLE(remove_fn, remove)
|
|
} // namespace views
|
|
/// @}
|
|
} // namespace ranges
|
|
|
|
#include <range/v3/detail/epilogue.hpp>
|
|
|
|
#endif // RANGES_V3_VIEW_REMOVE_HPP
|