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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
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<TITLE>PetscErrorPrintf</TITLE>
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<A NAME="PetscErrorPrintf"><H1>PetscErrorPrintf</H1></A>
Prints error messages.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
PetscErrorCode (*PetscErrorPrintf)(const char format[],...);
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<DT><B>format </B> -the usual printf() format string
<br>
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-error_output_stdout </B></TD><TD>- cause error messages to be printed to stdout instead of the
(default) stderr
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-error_output_none to turn off all printing of error messages (does not change the way the </B></TD><TD>- error is handled.)
</TD></TR></TABLE>
<P>
Notes: Use
<pre>
<A HREF="../Sys/PetscErrorPrintf.html#PetscErrorPrintf">PetscErrorPrintf</A> = PetscErrorPrintfNone; to turn off all printing of error messages (does not change the way the
</pre>
<pre>
error is handled.) and
</pre>
<pre>
<A HREF="../Sys/PetscErrorPrintf.html#PetscErrorPrintf">PetscErrorPrintf</A> = PetscErrorPrintfDefault; to turn it back on
</pre>
<pre>
of you can use your own function
</pre>
<P>
Use
PETSC_STDERR = FILE* obtained from a file open etc. to have stderr printed to the file.
PETSC_STDOUT = FILE* obtained from a file open etc. to have stdout printed to the file.
<P>
Use
<A HREF="../Sys/PetscPushErrorHandler.html#PetscPushErrorHandler">PetscPushErrorHandler</A>() to provide your own error handler that determines what kind of messages to print
<P>
<P>
<H3><FONT COLOR="#CC3333">Fortran Note</FONT></H3>
This routine is not supported in Fortran.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Sys/PetscFPrintf.html#PetscFPrintf">PetscFPrintf</A>(), <A HREF="../Sys/PetscSynchronizedPrintf.html#PetscSynchronizedPrintf">PetscSynchronizedPrintf</A>(), <A HREF="../Sys/PetscHelpPrintf.html#PetscHelpPrintf">PetscHelpPrintf</A>(), <A HREF="../Sys/PetscPrintf.html#PetscPrintf">PetscPrintf</A>(), PetscErrorHandlerPush(), <A HREF="../Sys/PetscVFPrintf.html#PetscVFPrintf">PetscVFPrintf</A>(), <A HREF="../Sys/PetscHelpPrintf.html#PetscHelpPrintf">PetscHelpPrintf</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../include/petscsys.h.html#PetscErrorPrintf">include/petscsys.h</A>
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