View source for cpp/string/basic string/pop back

===Example===
{{example
|code=
#include <cassert>
#include <iomanip>
#include <iostream>
#include <string>

int main()
{
    std::string str("Short string!");
    std::cout << "Before: " << std::quoted(str) << '\n';
    assert(str.size() == 13);
    
    str.pop_back();
    std::cout << "After:  " << std::quoted(str) << '\n';
    assert(str.size() == 12);
    
    str.clear();
//  str.pop_back(); // undefined behavior
}
|output=
Before: "Short string!"
After:  "Short string"
}}