double get_time(){
struct timeval t;
gettimeofday(&t, NULL);
double d = t.tv_sec + (double) t.tv_usec/1000000;
return d;
}
...
double time_start = get_time();
...
double time_end = get_time();
printf("This program has run for: %f seconds.\n", time_end - time_start);
#include<stdio.h>
#include<time.h>
void do_something()
{
for(int i=0;i<100000;i++)
for(int j=0;j<10000;j++)
;
}
int main(int arg,char ** argv)
{
clock_t start=clock();
do_something();
clock_t end=clock();
float time=(float)(end-start)/CLOCKS_PER_SEC;
printf("%f\n",time);
return 0;
}