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<A NAME="CHKERRQ"><H1>CHKERRQ</H1></A>
Checks error code, if non-zero it calls the error handler and then returns Not Collective
<P>
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
void CHKERRQ(int errorcode)
</PRE>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<DT><B>errorcode </B> -nonzero error code, see the list of standard error codes in include/petscerror.h
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Once the error handler is called the calling function is then returned from with the given error code.
<P>
Experienced users can set the error handler with <A HREF="../Sys/PetscPushErrorHandler.html#PetscPushErrorHandler">PetscPushErrorHandler</A>().
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Sys/PetscTraceBackErrorHandler.html#PetscTraceBackErrorHandler">PetscTraceBackErrorHandler</A>(), <A HREF="../Sys/PetscPushErrorHandler.html#PetscPushErrorHandler">PetscPushErrorHandler</A>(), <A HREF="../Sys/PetscError.html#PetscError">PetscError</A>(), <A HREF="../Sys/SETERRQ.html#SETERRQ">SETERRQ</A>(), <A HREF="../Sys/CHKMEMQ.html#CHKMEMQ">CHKMEMQ</A>, <A HREF="../Sys/SETERRQ1.html#SETERRQ1">SETERRQ1</A>(), <A HREF="../Sys/SETERRQ2.html#SETERRQ2">SETERRQ2</A>(), <A HREF="../Sys/SETERRQ2.html#SETERRQ2">SETERRQ2</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/src/error/../../../../include/petscerror.h.html#CHKERRQ">src/sys/src/error/../../../../include/petscerror.h</A>
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<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/sys/examples/tutorials/ex1.c.html">src/sys/examples/tutorials/ex1.c.html</A><BR>
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