CLOCK
Section: Linux Programmer's Manual (3)
Updated: April 21, 1993
NAME
clock - Determine processor time
SYNOPSIS
#include <time.h>
clock_t clock(void);
DESCRIPTION
The
clock()
function returns an approximation of processor time used by the program.
RETURN VALUE
The value returned is the CPU time used so far as a
clock_t;
to get the number of seconds used, divide by
CLOCKS_PER_SEC.
CONFORMING TO
ANSI C
BUGS
The C standard allows for arbitrary values at the start of the program; take
the difference between the value returned from a call to
clock()
at the start of the program and the end to get maximum portability.
The
times()
function call returns more information.
SEE ALSO
times(2)