std::dynamic_extent

 

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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)