C Tutorial/time.h/clock

clock

Item Value Header file time.h Declaration clock_t clock(void); Return returns time or -1 if the time is not available.

To transform this value into seconds, divide it by CLOCKS_PER_SEC.

<source lang="cpp">#include <time.h>

 #include <stdio.h>
 int main(void)
 {
  
   printf("Elapsed time: %u secs.\n", clock()/CLOCKS_PER_SEC);
  
 }</source>