Question

What is the best way to time a code section with high resolution and portability?

/* Time from here */ ProcessIntenseFunction(); /* to here. */  printf('Time taken %d seconds %d milliseconds', sec, msec); 

Is there a standard library that would have a cross-platform solution?

Answer 1

I think this should work:

#include <time.h>  clock_t start = clock(), diff; ProcessIntenseFunction(); diff = clock() - start;  int msec = diff * 1000 / CLOCKS_PER_SEC; printf('Time taken %d seconds %d milliseconds', msec/1000, msec%1000);