Get a timestamp in C in microseconds?

Question

How do I get a microseconds timestamp in C?

I\'m trying to do:

struct timeval tv;
gettimeofday(&tv,NULL);
return tv.tv_usec;

Bu

Answer 1

timespec_get from C11 returns up to nanoseconds, rounded to the resolution of the implementation.

#include 
struct timespec ts;
timespec_get(&ts, TIME_UTC);
struct timespec {
    time_t   tv_sec;        /* seconds */
    long     tv_nsec;       /* nanoseconds */
};

More details here: https://stackoverflow.com/a/36095407/895245