std::span<T,Extent>::front (3) - Linux Manuals

std::span<T,Extent>::front: std::span<T,Extent>::front

NAME

std::span<T,Extent>::front - std::span<T,Extent>::front

Synopsis

constexpr reference front() const;

Returns a reference to the first element in the span.
Calling front on an empty span results in undefined behavior.

Parameters

(none)

Return value

A reference to the first element.

Complexity

Constant

Notes

For a span c, the expression c.front() is equivalent to *c.begin().

Example

 This section is incomplete
 Reason: no example