.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\" must display the following acknowledgement:
-.\" This product includes software developed by the University of
-.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\" SUCH DAMAGE.
.\"
.\" @(#)clock.3 8.1 (Berkeley) 6/4/93
-.\" $FreeBSD: src/lib/libc/gen/clock.3,v 1.11 2001/11/20 13:43:58 ru Exp $
+.\" $FreeBSD$
.\"
.Dd June 4, 1993
.Dt CLOCK 3
function returns the amount of time used unless an error occurs, in which
case the return value is \-1.
.Sh SEE ALSO
-.Xr getrusage 2 ,
-.Xr clocks 7
+.Xr getrusage 2
.Sh STANDARDS
The
.Fn clock
function conforms to
-.St -isoC .
-However,
-.St -susv2
-requires
+.St -isoC
+and
+.St -susv3
+which requires
.Dv CLOCKS_PER_SEC
to be defined as one million.
-.Fx
-does not conform to this requirement;
-changing the value would introduce binary incompatibility
-and one million is still inadequate on modern processors.