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

use an unsigned long long (i.e. a 64 bit unit) to represent the system time:

typedef unsigned long long u64;

u64 u64useconds;
struct timeval tv;

gettimeofday(&tv,NULL);
u64useconds = (1000000*tv.tv_sec) + tv.tv_usec;