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

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

See also


     access the last element
back (public member function)