public member function

std::basic_string::pop_back

Delete last character

Erases the last character of the basic_string, effectively reducing its length by one.

Parameters

none

Return value

none

Example

// string::pop_back
#include <iostream>
#include <string>

int main ()
{
  std::string str ("hello world!");
  str.pop_back();
  std::cout << str << '\n';
  return 0;
}

Complexity

Unspecified, but generally constant.

Iterator validity

Any iterators, pointers and references related to this object may be invalidated.

Data races

The object is modified.

Exception safety

If the basic_string is empty, it causes undefined behavior.
Otherwise, the function never throws exceptions (no-throw guarantee).