difftime
---subtract two times#include <time.h> double difftime(time_t tim1, time_t tim2);Description
tim1 - tim2
'.
Returns
The difference (in seconds) between tim2 and tim1, as a double
.
Portability
ANSI C requires difftime
, and defines its result to be in seconds
in all implementations.
difftime
requires no supporting OS subroutines.