difftime
Remonter à Time.h - Index
Header File
time.h
Category
Time and Date Routines
Prototype
double difftime(time_t time2, time_t time1);
Description
Computes the difference between two times.
difftime calculates the elapsed time in seconds, from time1 to time2.
Return Value
difftime returns the result of its calculation as a double.
Example
#include <time.h>
#include <stdio.h>
#include <dos.h>
#include <conio.h>
int main(void)
{
time_t first, second;
clrscr();
first = time(NULL); /* Gets system
time */
delay(2000); /* Waits 2 secs */
second = time(NULL); /* Gets system time
again */
printf("The difference is: %f seconds\n",difftime(second,first));
getch();
return 0;
}
Portability
POSIX | Win32 | ANSI C | ANSI C++ |
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