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

fix for constexpr disabled

Browse source 
add sprout::adaptors::sized
This commit is contained in:
bolero-MURAKAMI 2012-06-16 00:08:42 +09:00
parent 2b8a8662af
commit bcd7674cc0
84 changed files with 1758 additions and 1365 deletions
Download patch file Download diff file Expand all files Collapse all files

152
sprout/range/adaptor/sized.hpp Normal file
View file

@ -0,0 +1,152 @@
#ifndef SPROUT_RANGE_ADAPTOR_SIZED_HPP
#define SPROUT_RANGE_ADAPTOR_SIZED_HPP
#include <cstddef>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/pit.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.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 Range, typename sprout::container_traits<Range>::size_type Size, typename = void>
class sized_impl;
template<typename Range, typename sprout::container_traits<Range>::size_type Size>
class sized_impl<
Range, Size,
typename std::enable_if<sprout::detail::has_static_size<sprout::container_traits<Range> >::value>::type
> {
public:
SPROUT_STATIC_CONSTEXPR typename sprout::container_traits<Range>::size_type
static_size = Size < sprout::container_traits<Range>::static_size ? Size
: sprout::container_traits<Range>::static_size
;
static SPROUT_CONSTEXPR typename sprout::container_traits<Range>::size_type fixed_size() {
return static_size;
}
};
template<typename Range, typename sprout::container_traits<Range>::size_type Size>
SPROUT_CONSTEXPR_OR_CONST typename sprout::container_traits<Range>::size_type sized_impl<
Range, Size,
typename std::enable_if<sprout::detail::has_static_size<sprout::container_traits<Range> >::value>::type
>::static_size;
template<typename Range, typename sprout::container_traits<Range>::size_type Size>
class sized_impl<
Range, Size,
typename std::enable_if<!sprout::detail::has_static_size<sprout::container_traits<Range> >::value>::type
> {
public:
SPROUT_STATIC_CONSTEXPR typename sprout::container_traits<Range>::size_type static_size = Size;
static SPROUT_CONSTEXPR typename sprout::container_traits<Range>::size_type fixed_size() {
return static_size;
}
};
template<typename Range, typename sprout::container_traits<Range>::size_type Size>
SPROUT_CONSTEXPR_OR_CONST typename sprout::container_traits<Range>::size_type sized_impl<
Range, Size,
typename std::enable_if<!sprout::detail::has_static_size<sprout::container_traits<Range> >::value>::type
>::static_size;
} // namespace detail
//
// sized_range
//
template<typename Range, typename sprout::container_traits<Range>::size_type Size>
class sized_range
: public sprout::range::range_container<
typename sprout::container_traits<Range>::iterator
>
, public sprout::adaptors::detail::sized_impl<Range, Size>
{
public:
typedef Range range_type;
typedef sprout::range::range_container<
typename sprout::container_traits<Range>::iterator
> base_type;
private:
typedef sprout::adaptors::detail::sized_impl<Range, Size> sized_impl_type;
public:
sized_range() = default;
sized_range(sized_range const&) = default;
explicit SPROUT_CONSTEXPR sized_range(range_type& range)
: base_type(
sprout::begin(range),
sized_impl_type::static_size < sprout::size(range)
? sprout::next(sprout::begin(range), sized_impl_type::static_size)
: sprout::end(range)
)
{}
};
//
// size_holder
//
template<std::size_t Size>
class size_holder
: public std::integral_constant<std::size_t, Size>
{};
//
// sized
//
template<std::size_t Size>
inline SPROUT_CONSTEXPR sprout::adaptors::size_holder<Size> sized() {
return sprout::adaptors::size_holder<Size>();
}
//
// operator|
//
template<typename Range, std::size_t Size>
inline SPROUT_CONSTEXPR sprout::adaptors::sized_range<
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type,
Size
>
operator|(Range&& lhs, sprout::adaptors::size_holder<Size> const& rhs) {
return sprout::adaptors::sized_range<
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type,
Size
>(
sprout::lvalue_forward<Range>(lhs)
);
}
} // namespace adaptors
//
// container_construct_traits
//
template<typename Range, typename sprout::container_traits<Range>::size_type Size>
struct container_construct_traits<sprout::adaptors::sized_range<Range, Size> > {
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::sized_range<Range, Size> >::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_SIZED_HPP