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<TITLE>PetscObjectDereference</TITLE>
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<A NAME="PetscObjectDereference"><H1>PetscObjectDereference</H1></A>
Indicates to any <A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A> that it is being referenced by one less <A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>. This decreases the reference count for that object by one.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petsc.h"
PetscErrorCode PETSC_DLLEXPORT PetscObjectDereference(PetscObject obj)
</PRE>
Collective on <A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>obj </B> -the PETSc object; this must be cast with (<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>), for example,
<A HREF="../Sys/PetscObjectDereference.html#PetscObjectDereference">PetscObjectDereference</A>((<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>)mat);
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Sys/PetscObjectCompose.html#PetscObjectCompose">PetscObjectCompose</A>(), <A HREF="../Sys/PetscObjectReference.html#PetscObjectReference">PetscObjectReference</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/objects/inherit.c.html#PetscObjectDereference">src/sys/objects/inherit.c</A>
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