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clock(3)							      clock(3)

Name
       clock - report CPU time used

Syntax
       #include <time.h>

       clock_t clock ( )

       CLOCKS_PER_SEC

Description
       The routine returns the amount of CPU time (in microseconds) used since
       the first call to The time reported is the sum of the user  and	system
       times  of  the  calling	process and its terminated child processes for
       which it has executed or To determine the time in  seconds,  the	 value
       returned by should be divided by the value of the macro CLOCKS_PER_SEC.

       The resolution of the clock is 16.667 milliseconds.

Restrictions
       The value returned by is defined in microseconds for compatibility with
       systems that have CPU clocks with much higher resolution.   Because  of
       this,  the value returned will wrap around after accumulating only 2147
       seconds of CPU time (about 36 minutes).

See Also
       wait(2), times(3), system(3)

								      clock(3)
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