mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-27 21:45:42 +00:00
124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2016 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_RANGE_ADAPTOR_REMOVED_IF_HPP
|
|
#define SPROUT_RANGE_ADAPTOR_REMOVED_IF_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/container/traits.hpp>
|
|
#include <sprout/container/functions.hpp>
|
|
#include <sprout/iterator/filter_iterator.hpp>
|
|
#include <sprout/iterator/remove_if_iterator.hpp>
|
|
#include <sprout/range/adaptor/detail/adapted_range_default.hpp>
|
|
#include <sprout/type_traits/lvalue_reference.hpp>
|
|
#include <sprout/utility/forward.hpp>
|
|
#include <sprout/utility/lvalue_forward.hpp>
|
|
|
|
namespace sprout {
|
|
namespace adaptors {
|
|
//
|
|
// removed_if_range
|
|
//
|
|
template<typename Predicate, typename Range>
|
|
class removed_if_range
|
|
: public sprout::adaptors::detail::adapted_range_default<
|
|
Range,
|
|
sprout::filter_iterator<
|
|
sprout::remove_if_filter<Predicate>,
|
|
typename sprout::container_traits<Range>::iterator
|
|
>
|
|
>
|
|
{
|
|
public:
|
|
typedef Predicate predicate_type;
|
|
typedef sprout::adaptors::detail::adapted_range_default<
|
|
Range,
|
|
sprout::filter_iterator<
|
|
sprout::remove_if_filter<Predicate>,
|
|
typename sprout::container_traits<Range>::iterator
|
|
>
|
|
> base_type;
|
|
typedef typename base_type::range_type range_type;
|
|
typedef typename base_type::iterator iterator;
|
|
public:
|
|
SPROUT_CONSTEXPR removed_if_range() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
|
|
removed_if_range(removed_if_range const&) = default;
|
|
SPROUT_CONSTEXPR removed_if_range(range_type& range, Predicate pred)
|
|
: base_type(
|
|
iterator(sprout::begin(range), typename iterator::predicate_type(pred)),
|
|
iterator(sprout::end(range), typename iterator::predicate_type(pred))
|
|
)
|
|
{}
|
|
};
|
|
|
|
//
|
|
// remove_if_holder
|
|
//
|
|
template<typename Predicate>
|
|
class remove_if_holder {
|
|
public:
|
|
typedef Predicate predicate_type;
|
|
private:
|
|
Predicate pred_;
|
|
public:
|
|
explicit SPROUT_CONSTEXPR remove_if_holder(Predicate pred)
|
|
: pred_(pred)
|
|
{}
|
|
SPROUT_CONSTEXPR Predicate const& predicate() const {
|
|
return pred_;
|
|
}
|
|
};
|
|
|
|
//
|
|
// removed_if_forwarder
|
|
//
|
|
class removed_if_forwarder {
|
|
public:
|
|
template<typename Predicate>
|
|
SPROUT_CONSTEXPR sprout::adaptors::remove_if_holder<Predicate>
|
|
operator()(Predicate pred) const {
|
|
return sprout::adaptors::remove_if_holder<Predicate>(pred);
|
|
}
|
|
};
|
|
|
|
//
|
|
// removed_if
|
|
//
|
|
namespace {
|
|
SPROUT_STATIC_CONSTEXPR sprout::adaptors::removed_if_forwarder removed_if = {};
|
|
} // anonymous-namespace
|
|
|
|
//
|
|
// operator|
|
|
//
|
|
template<typename Range, typename Predicate>
|
|
inline SPROUT_CONSTEXPR sprout::adaptors::removed_if_range<
|
|
Predicate,
|
|
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
|
|
>
|
|
operator|(Range&& lhs, sprout::adaptors::remove_if_holder<Predicate> const& rhs) {
|
|
return sprout::adaptors::removed_if_range<
|
|
Predicate,
|
|
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
|
|
>(
|
|
sprout::lvalue_forward<Range>(lhs),
|
|
rhs.predicate()
|
|
);
|
|
}
|
|
} // namespace adaptors
|
|
|
|
//
|
|
// container_construct_traits
|
|
//
|
|
template<typename Predicate, typename Range>
|
|
struct container_construct_traits<sprout::adaptors::removed_if_range<Predicate, Range> >
|
|
: public sprout::container_construct_traits<typename sprout::adaptors::removed_if_range<Predicate, Range>::base_type>
|
|
{};
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_RANGE_ADAPTOR_REMOVED_IF_HPP
|