gul14::span< ElementType, Extent > Class Template Reference

Detailed Description

template<typename ElementType, std::size_t Extent>
class gul14::span< ElementType, Extent >

A view to a contiguous sequence of objects.

This is a backport of std::span from C++20.

Since

GUL version 1.9

#include <span.h>

Public Types
using	element_type = ElementType
	See std::span.
using	value_type = typename std::remove_cv< ElementType >::type
	See std::span.
using	index_type = std::size_t
	See std::span.
using	difference_type = std::ptrdiff_t
	See std::span.
using	pointer = element_type *
	See std::span.
using	const_pointer = const element_type *
	See std::span.
using	reference = element_type &
	See std::span.
using	iterator = pointer
	See std::span.
using	const_iterator = const_pointer
	See std::span.
using	reverse_iterator = std::reverse_iterator< iterator >
	See std::span.
using	const_reverse_iterator = std::reverse_iterator< const_iterator >
	See std::span.
template<std::size_t Offset, std::size_t Count = dynamic_extent>
using	subspan_return_t = span< ElementType, Count !=dynamic_extent ? Count :(Extent !=dynamic_extent ? Extent - Offset :dynamic_extent)>
	See std::span.

Public Member Functions
template<std::size_t E = Extent, typename std::enable_if<(E==dynamic_extent||E<=0), int >::type = 0>
constexpr	span () noexcept
	See std::span.
constexpr	span (pointer ptr, index_type count)
	See std::span.
constexpr	span (pointer first_elem, pointer last_elem)
	See std::span.
template<std::size_t N, std::size_t E = Extent, typename std::enable_if<(E==dynamic_extent||N==E) &&detail::is_container_element_type_compatible< element_type(&)[N], ElementType >::value, int >::type = 0>
constexpr	span (element_type(&arr)[N]) noexcept
	See std::span.
template<std::size_t N, std::size_t E = Extent, typename std::enable_if<(E==dynamic_extent||N==E) &&detail::is_container_element_type_compatible< std::array< value_type, N > &, ElementType >::value, int >::type = 0>
	span (std::array< value_type, N > &arr) noexcept
	See std::span.
template<std::size_t N, std::size_t E = Extent, typename std::enable_if<(E==dynamic_extent||N==E) &&detail::is_container_element_type_compatible< const std::array< value_type, N > &, ElementType >::value, int >::type = 0>
	span (const std::array< value_type, N > &arr) noexcept
	See std::span.
template<typename Container , std::size_t E = Extent, typename std::enable_if< E==dynamic_extent &&detail::is_container< Container >::value &&detail::is_container_element_type_compatible< Container &, ElementType >::value, int >::type = 0>
constexpr	span (Container &cont)
	See std::span.
template<typename Container , std::size_t E = Extent, typename std::enable_if< E==dynamic_extent &&detail::is_container< Container >::value &&detail::is_container_element_type_compatible< const Container &, ElementType >::value, int >::type = 0>
constexpr	span (const Container &cont)
	See std::span.
constexpr	span (const span &other) noexcept=default
	See std::span.
template<typename OtherElementType , std::size_t OtherExtent, typename std::enable_if<(Extent==OtherExtent||Extent==dynamic_extent) &&std::is_convertible< OtherElementType(*)[], ElementType(*)[]>::value, int >::type = 0>
constexpr	span (const span< OtherElementType, OtherExtent > &other) noexcept
	See std::span.
	~span () noexcept=default
	See std::span.
GUL_SPAN_CONSTEXPR_ASSIGN span &	operator= (const span &other) noexcept=default
	See std::span.
template<std::size_t Count>
constexpr span< element_type, Count >	first () const
	See std::span.
template<std::size_t Count>
constexpr span< element_type, Count >	last () const
	See std::span.
template<std::size_t Offset, std::size_t Count = dynamic_extent>
constexpr subspan_return_t< Offset, Count >	subspan () const
	See std::span.
constexpr span< element_type, dynamic_extent >	first (index_type count) const
	See std::span.
constexpr span< element_type, dynamic_extent >	last (index_type count) const
	See std::span.
constexpr span< element_type, dynamic_extent >	subspan (index_type offset, index_type count=dynamic_extent) const
	See std::span.
constexpr index_type	size () const noexcept
	See std::span.
constexpr index_type	size_bytes () const noexcept
	See std::span.
constexpr bool	empty () const noexcept
	See std::span.
constexpr reference	operator[] (index_type idx) const
	See std::span.
constexpr reference	front () const
	See std::span.
constexpr reference	back () const
	See std::span.
constexpr pointer	data () const noexcept
	See std::span.
constexpr iterator	begin () const noexcept
	See std::span.
constexpr iterator	end () const noexcept
	See std::span.
constexpr const_iterator	cbegin () const noexcept
	See std::span.
constexpr const_iterator	cend () const noexcept
	See std::span.
reverse_iterator	rbegin () const noexcept
	See std::span.
reverse_iterator	rend () const noexcept
	See std::span.
const_reverse_iterator	crbegin () const noexcept
	See std::span.
const_reverse_iterator	crend () const noexcept
	See std::span.

Static Public Attributes
static constexpr index_type	extent = Extent
	See std::span.

Friends
constexpr friend iterator	begin (span s) noexcept
	See std::span.
constexpr friend iterator	end (span s) noexcept
	See std::span.

---

The documentation for this class was generated from the following file:

• span.h