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add range adaptor: merged, set operations

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bolero-MURAKAMI 2013-01-26 23:51:43 +09:00
parent 3472e8b94e
commit 9aa2a7c9b2
43 changed files with 1176 additions and 62 deletions
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118
sprout/range/adaptor/removed_if.hpp Normal file
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#ifndef SPROUT_RANGE_ADAPTOR_REMOVED_IF_HPP
#define SPROUT_RANGE_ADAPTOR_REMOVED_IF_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/pit.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:
removed_if_range() = default;
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) {
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