CLOCK(3) Linux Programmer's Manual CLOCK(3)
NAME
clock - Determine processor timeSYNOPSIS
#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.CONFORMS TO
ANSI CBUGS
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 pro- gram and the end to get maximum portability. The times() function call returns more information.
GNU April 21, 1993 1
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