swap
Syntax:
#include <algorithm> void swap( Assignable& a, Assignable& b );
The swap() function swaps the values of a and b. swap() expects that its arguments will conform to the Assignable model; that is, they should have a copy constructor and work with the = operator. This function performs one copy and two assignments.
Related Topics: copy, copy_backward, copy_n, iter_swap, swap_ranges