std::dynamic_extent

C++

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Named requirements

Language support library

Concepts library (C++20)

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Regular expressions library (C++11)

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Technical Specifications

Containers library

array (C++11)

vector

deque

forward_list (C++11)

list

set

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multimap

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stack

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std::span

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span::span

span::operator=

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span::operator[]span::operator()

span::data

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span::beginspan::cbegin

span::endspan::cend

span::rbeginspan::crbegin

span::rendspan::crend

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span::empty

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span::size_bytes

Subviews

span::first

span::last

span::subspan

Non-member functions

operator==operator!=operator<operator<=operator>operator>=

as_bytesas_writable_bytes

Non-member constant

dynamic_extent

Deduction guides

Defined in header <span>
inline constexpr std::ptrdiff_t dynamic_extent = -1;		(since C++20)

std::dynamic_extent is a constant of type std::ptrdiff_t that is used to differentiate std::span of static and dynamic extent.

See also

span (C++20)

a non-owning view over a contiguous sequence of objects (class template)