clock3
Determine processor time used
Usage
#include <time.h>
clock_t
clock(void);
Library
Standard C Library (libc, -lc)
Overview
The clock() function determines the amount of processor time used since the invocation of the calling process, measured in CLOCKS_PER_SECs of a second.
Return values
The clock() function returns the amount of time used unless an error occurs, in which case the return value is -1.
Releases
163 releases since Mac OS X 10.0; the text changed 5 times.