reference/C/MAN/clock.htm


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<TITLE>clock</TITLE>
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<pre>


<h3>CLOCK(3)            Linux Programmer's Manual            CLOCK(3)
</h3>

<h3>NAME
</h3>       clock - Determine processor time

<h3>SYNOPSIS
</h3>       #include &lt;time.h&gt;

       clock_t clock(void);

<h3>DESCRIPTION
</h3>       The clock() function returns an approximation of processor
       time used by the program.

<h3>RETURN VALUE
</h3>       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.

<h3>CONFORMS TO
</h3>       ANSI C

<h3>BUGS
</h3>       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.

</pre>
<hr>
<h3>SEE ALSO
</h3><p>
<a href=times.htm>times</a>, 
<pre>


<h3>GNU                       April 21, 1993                        1
</h3>


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