MemorySpan< T > Class Template Reference

#include <v8-memory-span.h>

Data Structures
class	Iterator

Public Member Functions
constexpr	MemorySpan ()=default
constexpr	MemorySpan (std::nullptr_t, size_t)
template<typename Iterator , std::enable_if_t< is_compatible_iterator_v< Iterator >, bool > = true>
constexpr	MemorySpan (Iterator first, size_t count)
template<typename Iterator , std::enable_if_t< is_compatible_iterator_v< Iterator > &&!std::is_convertible_v< Iterator, size_t >, bool > = true>
constexpr	MemorySpan (Iterator first, Iterator last)
template<size_t N>
constexpr	MemorySpan (T(&a)[N]) noexcept
template<typename U , size_t N, std::enable_if_t< is_array_convertible_v< U, T >, bool > = true>
constexpr	MemorySpan (std::array< U, N > &a) noexcept
template<typename U , size_t N, std::enable_if_t< is_array_convertible_v< const U, T >, bool > = true>
constexpr	MemorySpan (const std::array< U, N > &a) noexcept
constexpr T *	data () const
constexpr size_t	size () const
constexpr T &	operator[] (size_t i) const
constexpr bool	empty () const
Iterator	begin () const
Iterator	end () const

Detailed Description

template<typename T>
class v8::MemorySpan< T >

Points to an unowned contiguous buffer holding a known number of elements.

This is similar to std::span (under consideration for C++20), but does not require advanced C++ support. In the (far) future, this may be replaced with or aliased to std::span.

To facilitate future migration, this class exposes a subset of the interface implemented by std::span.

Definition at line 64 of file v8-memory-span.h.

Constructor & Destructor Documentation

MemorySpan() [1/7]

template<typename T >

constexpr MemorySpan ( )

constexprdefault

The default constructor creates an empty span.

MemorySpan() [2/7]

template<typename T >

constexpr MemorySpan ( std::nullptr_t  , size_t    )

inlineconstexpr

Constructor from nullptr and count, for backwards compatibility. This is not compatible with C++20 std::span.

Definition at line 113 of file v8-memory-span.h.

MemorySpan() [3/7]

template<typename T >

template<typename Iterator , std::enable_if_t< is_compatible_iterator_v< Iterator >, bool > = true>

constexpr MemorySpan ( Iterator  first, size_t  count  )

inlineconstexpr

Constructor from "iterator" and count.

Definition at line 118 of file v8-memory-span.h.

References MemorySpan< T >::MemorySpan().

Referenced by MemorySpan< T >::MemorySpan().

MemorySpan() [4/7]

template<typename T >

template<typename Iterator , std::enable_if_t< is_compatible_iterator_v< Iterator > &&!std::is_convertible_v< Iterator, size_t >, bool > = true>

constexpr MemorySpan ( Iterator  first, Iterator  last  )

inlineconstexpr

Constructor from two "iterators".

Definition at line 127 of file v8-memory-span.h.

References MemorySpan< T >::MemorySpan().

Referenced by MemorySpan< T >::MemorySpan().

MemorySpan() [5/7]

template<typename T >

template<size_t N>

constexpr MemorySpan ( T(&)  a[N] )

inlineconstexprnoexcept

Implicit conversion from C-style array.

Definition at line 133 of file v8-memory-span.h.

References MemorySpan< T >::MemorySpan().

Referenced by MemorySpan< T >::MemorySpan().

MemorySpan() [6/7]

template<typename T >

template<typename U , size_t N, std::enable_if_t< is_array_convertible_v< U, T >, bool > = true>

constexpr MemorySpan ( std::array< U, N > &  a )

inlineconstexprnoexcept

Implicit conversion from std::array.

Definition at line 139 of file v8-memory-span.h.

References MemorySpan< T >::MemorySpan().

Referenced by MemorySpan< T >::MemorySpan().

MemorySpan() [7/7]

template<typename T >

template<typename U , size_t N, std::enable_if_t< is_array_convertible_v< const U, T >, bool > = true>

constexpr MemorySpan ( const std::array< U, N > &  a )

inlineconstexprnoexcept

Implicit conversion from const std::array.

Definition at line 146 of file v8-memory-span.h.

References MemorySpan< T >::MemorySpan().

Referenced by MemorySpan< T >::MemorySpan().

Member Function Documentation

begin()

template<typename T >

Iterator begin ( ) const

inline

Definition at line 282 of file v8-memory-span.h.

data()

template<typename T >

constexpr T * data ( ) const

inlineconstexpr

Returns a pointer to the beginning of the buffer.

Definition at line 151 of file v8-memory-span.h.

empty()

template<typename T >

constexpr bool empty ( ) const

inlineconstexpr

Returns true if the buffer is empty.

Definition at line 158 of file v8-memory-span.h.

end()

template<typename T >

Iterator end ( ) const

inline

Definition at line 283 of file v8-memory-span.h.

operator[]()

template<typename T >

constexpr T & operator[] ( size_t  i ) const

inlineconstexpr

Definition at line 155 of file v8-memory-span.h.

size()

template<typename T >

constexpr size_t size ( ) const

inlineconstexpr

Returns the number of elements that the buffer holds.

Definition at line 153 of file v8-memory-span.h.

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

• include/v8-memory-span.h