mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2013 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_FILLED_HPP
|
|
#define SPROUT_RANGE_ADAPTOR_FILLED_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/container/traits.hpp>
|
|
#include <sprout/container/functions.hpp>
|
|
#include <sprout/iterator/value_iterator.hpp>
|
|
#include <sprout/range/range_container.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 {
|
|
//
|
|
// filled_range
|
|
//
|
|
template<typename Range>
|
|
class filled_range
|
|
: public sprout::adaptors::detail::adapted_range_default<
|
|
Range,
|
|
sprout::value_iterator<typename sprout::container_traits<Range>::value_type>
|
|
>
|
|
{
|
|
public:
|
|
typedef sprout::adaptors::detail::adapted_range_default<
|
|
Range,
|
|
sprout::value_iterator<typename sprout::container_traits<Range>::value_type>
|
|
> base_type;
|
|
typedef typename base_type::range_type range_type;
|
|
typedef typename base_type::iterator iterator;
|
|
typedef typename base_type::value_type value_type;
|
|
public:
|
|
filled_range() = default;
|
|
filled_range(filled_range const&) = default;
|
|
SPROUT_CONSTEXPR filled_range(
|
|
range_type& range,
|
|
value_type const& value
|
|
)
|
|
: base_type(
|
|
iterator(value, sprout::size(range)),
|
|
iterator(value, 0)
|
|
)
|
|
{}
|
|
};
|
|
|
|
//
|
|
// fill_holder
|
|
//
|
|
template<typename T>
|
|
class fill_holder {
|
|
public:
|
|
typedef T value_type;
|
|
private:
|
|
value_type value_;
|
|
public:
|
|
explicit SPROUT_CONSTEXPR fill_holder(value_type const& value)
|
|
: value_(value)
|
|
{}
|
|
SPROUT_CONSTEXPR value_type const& value() const {
|
|
return value_;
|
|
}
|
|
};
|
|
|
|
//
|
|
// filled_forwarder
|
|
//
|
|
class filled_forwarder {
|
|
public:
|
|
template<typename T>
|
|
SPROUT_CONSTEXPR sprout::adaptors::fill_holder<T>
|
|
operator()(T const& value) const {
|
|
return sprout::adaptors::fill_holder<T>(value);
|
|
}
|
|
};
|
|
|
|
//
|
|
// filled
|
|
//
|
|
namespace {
|
|
SPROUT_STATIC_CONSTEXPR sprout::adaptors::filled_forwarder filled = {};
|
|
} // anonymous-namespace
|
|
|
|
//
|
|
// operator|
|
|
//
|
|
template<typename Range, typename T>
|
|
inline SPROUT_CONSTEXPR sprout::adaptors::filled_range<
|
|
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
|
|
>
|
|
operator|(Range&& lhs, sprout::adaptors::fill_holder<T> const& rhs) {
|
|
return sprout::adaptors::filled_range<
|
|
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
|
|
>(
|
|
sprout::lvalue_forward<Range>(lhs),
|
|
rhs.value()
|
|
);
|
|
}
|
|
} // namespace adaptors
|
|
|
|
//
|
|
// container_construct_traits
|
|
//
|
|
template<typename Range>
|
|
struct container_construct_traits<sprout::adaptors::filled_range<Range> >
|
|
: public sprout::container_construct_traits<typename sprout::adaptors::filled_range<Range>::base_type>
|
|
{};
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_RANGE_ADAPTOR_FILLED_HPP
|