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How do I stamp two times t1 and t2 and get the difference in milliseconds in C?
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time() function in C The time() function is defined in time. h (ctime in C++) header file. This function returns the time since 00:00:00 UTC, January 1, 1970 (Unix timestamp) in seconds. If second is not a null pointer, the returned value is also stored in the object pointed to by second.
The time_t datatype is a data type in the ISO C library defined for storing system time values. Such values are returned from the standard time() library function. This type is a typedef defined in the standard <time.
C library function - time() The C library function time_t time(time_t *seconds) returns the time since the Epoch (00:00:00 UTC, January 1, 1970), measured in seconds. If seconds is not NULL, the return value is also stored in variable seconds.
This will give you the time in seconds + microseconds
#include <sys/time.h> struct timeval tv; gettimeofday(&tv,NULL); tv.tv_sec // seconds tv.tv_usec // microseconds If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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