std::forward_list::pop_front(3)

NAME
std::forward_list::pop_front - std::forward_list::pop_front

Synopsis
   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
// Run this code
 #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
   push_front inserts an element to the beginning
   (C++11) (public member function)
   front access the first element
   (C++11) (public member function)