CLOCK(3) OpenBSD Programmer's Manual CLOCK(3)NAME
clock - determine processor time used
SYNOPSIS
#include <time.h>
clock_t
clock(void);
DESCRIPTION
The clock() function determines the amount of processor time used since
the invocation of the calling process, measured in CLOCKS_PER_SECs.
RETURN VALUES
The clock() function returns the amount of time used unless an error
occurs, in which case the return value is -1.
SEE ALSOgetrusage(2)STANDARDS
The clock() function conforms to ANSI X3.159-1989 (``ANSI C'').
OpenBSD 4.9 May 31, 2007 OpenBSD 4.9