King_DuckZ/Sprout
1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout synced 2025-08-03 12:49:50 +00:00
Code Issues Releases Wiki Activity

destructive change sprout::generate -> sprout::unfold

Browse source 
add range adapter reversed, replaced, filtered
This commit is contained in:
bolero-MURAKAMI 2012-09-21 15:43:30 +09:00
parent 6b3f7ad894
commit 73ead93fe5
60 changed files with 3840 additions and 318 deletions
Download patch file Download diff file Expand all files Collapse all files

160
sprout/range/adaptor/replaced.hpp Normal file
View file

@ -0,0 +1,160 @@
#ifndef SPROUT_RANGE_ADAPTOR_REPLACED_HPP
#define SPROUT_RANGE_ADAPTOR_REPLACED_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/transform_iterator.hpp>
#include <sprout/range/range_container.hpp>
#include <sprout/range/algorithm/copy.hpp>
#include <sprout/type_traits/lvalue_reference.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/utility/lvalue_forward.hpp>
namespace sprout {
namespace adaptors {
namespace detail {
template<typename T>
class replace_value {
public:
typedef T const& result_type;
typedef T const& first_argument_type;
private:
T old_;
T new_;
public:
SPROUT_CONSTEXPR replace_value(T const& old_value, T const& new_value)
: old_(old_value)
, new_(new_value)
{}
T const& operator()(T const& value) const {
return (value == old_) ? new_ : value;
}
};
} // namespace detail
//
// replaced_range
//
template<typename Range>
class replaced_range
: public sprout::range::range_container<
sprout::transform_iterator<
sprout::adaptors::detail::replace_value<typename sprout::container_traits<Range>::value_type>,
typename sprout::container_traits<Range>::iterator
>
>
, public sprout::detail::container_nosy_static_size<Range>
, public sprout::detail::container_nosy_fixed_size<Range>
{
public:
typedef Range range_type;
typedef sprout::range::range_container<
sprout::transform_iterator<
sprout::adaptors::detail::replace_value<typename sprout::container_traits<Range>::value_type>,
typename sprout::container_traits<Range>::iterator
>
> base_type;
typedef typename base_type::iterator iterator;
typedef typename base_type::value_type value_type;
public:
replaced_range() = default;
replaced_range(replaced_range const&) = default;
explicit SPROUT_CONSTEXPR replaced_range(range_type& range, value_type const& old_value, value_type const& new_value)
: base_type(
iterator(sprout::begin(range), typename iterator::functor_type(old_value, new_value)),
iterator(sprout::end(range), typename iterator::functor_type(old_value, new_value))
)
{}
};
//
// replace_holder
//
template<typename T>
class replace_holder {
public:
typedef T value_type;
private:
value_type old_;
value_type new_;
public:
SPROUT_CONSTEXPR replace_holder(value_type const& old_value, value_type const& new_value)
: old_(old_value)
, new_(new_value)
{}
SPROUT_CONSTEXPR value_type old_value() const {
return old_;
}
SPROUT_CONSTEXPR value_type new_value() const {
return new_;
}
};
//
// replaced_forwarder
//
class replaced_forwarder {
public:
template<typename T>
SPROUT_CONSTEXPR sprout::adaptors::replace_holder<T>
operator()(T const& old_value, T const& new_value) {
return sprout::adaptors::replace_holder<T>(old_value, new_value);
}
};
//
// replaced
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::adaptors::replaced_forwarder replaced{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T>
inline SPROUT_CONSTEXPR sprout::adaptors::replaced_range<
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
>
operator|(Range&& lhs, sprout::adaptors::replace_holder<T> const& rhs) {
return sprout::adaptors::replaced_range<
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
>(
sprout::lvalue_forward<Range>(lhs),
rhs.old_value(),
rhs.new_value()
);
}
} // namespace adaptors
//
// container_construct_traits
//
template<typename Range>
struct container_construct_traits<sprout::adaptors::replaced_range<Range> > {
public:
typedef typename sprout::container_construct_traits<Range>::copied_type copied_type;
public:
template<typename Cont>
static SPROUT_CONSTEXPR copied_type deep_copy(Cont&& cont) {
return sprout::range::fixed::copy(sprout::forward<Cont>(cont), sprout::pit<copied_type>());
}
template<typename... Args>
static SPROUT_CONSTEXPR copied_type make(Args&&... args) {
return sprout::make<copied_type>(sprout::forward<Args>(args)...);
}
template<typename Cont, typename... Args>
static SPROUT_CONSTEXPR copied_type remake(
Cont&& cont,
typename sprout::container_traits<sprout::adaptors::replaced_range<Range> >::difference_type size,
Args&&... args
)
{
return sprout::remake<copied_type>(sprout::forward<Cont>(cont), size, sprout::forward<Args>(args)...);
}
};
} // namespace sprout
#endif // #ifndef SPROUT_RANGE_ADAPTOR_REPLACED_HPP