std::tuple_element<std::span>

 

C++

Language

Standard Library Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

Containers library

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

map

multimap

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

stack

queue

priority_queue

span (C++20)

 

std::span

Member functions

span::span

span::operator=

Element access

span::front

span::back

span::operator[]

span::data

Iterators

span::beginspan::cbegin

span::endspan::cend

span::rbeginspan::crbegin

span::rendspan::crend

Observers

span::empty

span::size

span::size_bytes

Subviews

span::first

span::last

span::subspan

Non-member functions

as_bytesas_writable_bytes

begin(std::span)end(std::span)

get

Non-member constant

dynamic_extent

Helper classes

tuple_size

tuple_element

Deduction guides

 

Defined in header <span>
template< std::size_t I, class T, std::size_t N > struct tuple_element<I, std::span<T, N> >;		(since C++20)

Provides compile-time indexed access to the type of the elements of the span using tuple-like interface. The program is ill-formed if I >= N or if N == std::dynamic_extent.

Member types

Member type	Definition
type	the type of elements of the span, i.e., T

See also

tuple_element	obtains the type of the specified element (class template specialization)
std::tuple_element<std::pair> (C++11)	obtains the type of the elements of pair (class template specialization)
std::tuple_element<std::array>	obtains the type of the elements of array (class template specialization)