span.h File Reference

#include <algorithm>
#include <cassert>
#include <cstddef>
#include <span>
#include <type_traits>

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Classes
class	Span< C >
	A Span is an object that can refer to a contiguous sequence of objects. More...
struct	Span< C >::is_Span_int< T >
struct	Span< C >::is_Span_int< Span< T > >
struct	Span< C >::is_Span< T >

Concepts
concept	BasicByte

Macros
#define	CONSTEXPR_IF_NOT_DEBUG   constexpr
#define	ASSERT_IF_DEBUG(x)
#define	SPAN_ATTR_LIFETIMEBOUND

Typedefs
template<typename T >
using	DataResult = std::remove_pointer_t<decltype(std::declval<T&>().data())>

Functions
template<typename T , typename EndOrSize >
	Span (T *, EndOrSize) -> Span< T >
template<typename T , std::size_t N>
	Span (T(&)[N]) -> Span< T >
template<typename T >
	Span (T &&) -> Span< std::enable_if_t<!std::is_lvalue_reference_v< T > &&!std::is_void_v< DataResult< T && > >, const DataResult< T && > > >
template<typename T >
	Span (T &) -> Span< std::enable_if_t<!std::is_void_v< DataResult< T & > >, DataResult< T & > > >
template<typename T >
T &	SpanPopBack (Span< T > &span)
	Pop the last element off a span, and return a reference to that element.
template<typename T >
Span< const std::byte >	AsBytes (Span< T > s) noexcept
template<typename T >
Span< std::byte >	AsWritableBytes (Span< T > s) noexcept
template<typename V >
Span< const std::byte >	MakeByteSpan (V &&v) noexcept
template<typename V >
Span< std::byte >	MakeWritableByteSpan (V &&v) noexcept
unsigned char *	UCharCast (char *c)
unsigned char *	UCharCast (unsigned char *c)
unsigned char *	UCharCast (signed char *c)
unsigned char *	UCharCast (std::byte *c)
const unsigned char *	UCharCast (const char *c)
const unsigned char *	UCharCast (const unsigned char *c)
const unsigned char *	UCharCast (const signed char *c)
const unsigned char *	UCharCast (const std::byte *c)
template<typename T >
constexpr auto	UCharSpanCast (Span< T > s) -> Span< typename std::remove_pointer< decltype(UCharCast(s.data()))>::type >
template<typename V >
constexpr auto	MakeUCharSpan (V &&v) -> decltype(UCharSpanCast(Span{std::forward< V >(v)}))
	Like the Span constructor, but for (const) unsigned char member types only.

Macro Definition Documentation

ASSERT_IF_DEBUG

#define ASSERT_IF_DEBUG

(

x

)

Definition at line 19 of file span.h.

CONSTEXPR_IF_NOT_DEBUG

#define CONSTEXPR_IF_NOT_DEBUG   constexpr

Definition at line 18 of file span.h.

SPAN_ATTR_LIFETIMEBOUND

#define SPAN_ATTR_LIFETIMEBOUND

Definition at line 29 of file span.h.

Typedef Documentation

DataResult

template<typename T >

using DataResult = std::remove_pointer_t<decltype(std::declval<T&>().data())>

Definition at line 241 of file span.h.

Function Documentation

AsBytes()

template<typename T >

Span< const std::byte > AsBytes ( Span< T > s )

noexcept

Definition at line 266 of file span.h.

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AsWritableBytes()

template<typename T >

Span< std::byte > AsWritableBytes ( Span< T > s )

noexcept

Definition at line 271 of file span.h.

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MakeByteSpan()

template<typename V >

Span< const std::byte > MakeByteSpan ( V && v )

noexcept

Definition at line 277 of file span.h.

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MakeUCharSpan()

template<typename V >

auto MakeUCharSpan ( V && v ) -> decltype(UCharSpanCast(Span{std::forward<V>(v)}))

constexpr

Like the Span constructor, but for (const) unsigned char member types only.

Only works for (un)signed char containers.

Definition at line 304 of file span.h.

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MakeWritableByteSpan()

template<typename V >

Span< std::byte > MakeWritableByteSpan ( V && v )

noexcept

Definition at line 282 of file span.h.

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Span() [1/4]

template<typename T >

Span

(

T &&

)

-> Span< std::enable_if_t<!std::is_lvalue_reference_v< T > &&!std::is_void_v< DataResult< T && > >, const DataResult< T && > > >

Span() [2/4]

template<typename T >

Span

(

T &

)

-> Span< std::enable_if_t<!std::is_void_v< DataResult< T & > >, DataResult< T & > > >

Span() [3/4]

template<typename T , typename EndOrSize >

Span	(	T *	,
		EndOrSize	) -> Span< T >

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Span() [4/4]

template<typename T , std::size_t N>

Span

(

T(&)

[N]

)

-> Span< T >

SpanPopBack()

template<typename T >

T & SpanPopBack

(

Span< T > &

span

)

Pop the last element off a span, and return a reference to that element.

Definition at line 255 of file span.h.

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UCharCast() [1/8]

unsigned char * UCharCast ( char * c )

inline

Definition at line 288 of file span.h.

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UCharCast() [2/8]

const unsigned char * UCharCast ( const char * c )

inline

Definition at line 292 of file span.h.

UCharCast() [3/8]

const unsigned char * UCharCast ( const signed char * c )

inline

Definition at line 294 of file span.h.

UCharCast() [4/8]

const unsigned char * UCharCast ( const std::byte * c )

inline

Definition at line 295 of file span.h.

UCharCast() [5/8]

const unsigned char * UCharCast ( const unsigned char * c )

inline

Definition at line 293 of file span.h.

UCharCast() [6/8]

unsigned char * UCharCast ( signed char * c )

inline

Definition at line 290 of file span.h.

UCharCast() [7/8]

unsigned char * UCharCast ( std::byte * c )

inline

Definition at line 291 of file span.h.

UCharCast() [8/8]

unsigned char * UCharCast ( unsigned char * c )

inline

Definition at line 289 of file span.h.

UCharSpanCast()

template<typename T >

auto UCharSpanCast ( Span< T > s ) -> Span<typename std::remove_pointer<decltype(UCharCast(s.data()))>::type>

constexpr

Definition at line 301 of file span.h.

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