std::forward_list<T,Allocator>::pop_front

From cppreference.com

 
 
Containers library
Sequence
(C++11)
Associative
Unordered associative
Adaptors
Views
(C++20)
 
 
void pop_front();
(since C++11)

Removes the first element of the container. If there are no elements in the container, the behavior is undefined.

References and iterators to the erased element are invalidated.

Parameters

(none)

Return value

(none)

Complexity

Constant.

Exceptions

Does not throw.

Example

#include <forward_list>
#include <iostream>
 
int main()
{
    std::forward_list<char> chars{'A', 'B', 'C', 'D'};
 
    for (; !chars.empty(); chars.pop_front())
    {
        std::cout << "chars.front(): '" << chars.front() << "'\n";
    }
}

Output:

chars.front(): 'A'
chars.front(): 'B'
chars.front(): 'C'
chars.front(): 'D'

See also

inserts an element to the beginning
(public member function)
(C++11)
access the first element
(public member function)