std::queue front

since C++98

// (1) Non const version
reference front();

// (2) Const version
const_reference front() const;

Returns a reference

to the first element in the queue.
This element will be the first element to be removed on a call to pop().

note

Effectively calls c.front().

Parameters

(none)

Return value

Reference to the first element.

Exceptions

(none)

Complexity

Constant - (1).

Example

important

This section requires improvement. You can help by editing this doc page.