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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.14.5 v3.14.5 docs/manualpages/Sys/PetscObjectListRemoveReference.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PetscObjectListRemoveReference"><H1>PetscObjectListRemoveReference</H1></A>
Calls <A HREF="../Sys/PetscObjectDereference.html#PetscObjectDereference">PetscObjectDereference</A>() on an object in the list immediately but keeps a pointer to the object in the list.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Sys/PetscObjectListRemoveReference.html#PetscObjectListRemoveReference">PetscObjectListRemoveReference</A>(<A HREF="../Sys/PetscObjectList.html#PetscObjectList">PetscObjectList</A> *fl,const char name[])
</PRE>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>fl </B></TD><TD>- the object list
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>name </B></TD><TD>- the name to use for the object
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Use <A HREF="../Sys/PetscObjectListAdd.html#PetscObjectListAdd">PetscObjectListAdd</A>(<A HREF="../Sys/PetscObjectList.html#PetscObjectList">PetscObjectList</A>,const char name[],NULL) to truly remove the object from the list
<P>
Use this routine ONLY if you know that the object referenced will remain in existence until the pointing object is destroyed
<P>
Developer Note: this is to handle some cases that otherwise would result in having circular references so reference counts never got to zero
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Sys/PetscObjectListDestroy.html#PetscObjectListDestroy">PetscObjectListDestroy</A>(), <A HREF="../Sys/PetscObjectListFind.html#PetscObjectListFind">PetscObjectListFind</A>(), <A HREF="../Sys/PetscObjectListDuplicate.html#PetscObjectListDuplicate">PetscObjectListDuplicate</A>(), <A HREF="../Sys/PetscObjectListReverseFind.html#PetscObjectListReverseFind">PetscObjectListReverseFind</A>(), <A HREF="../Sys/PetscObjectListDuplicate.html#PetscObjectListDuplicate">PetscObjectListDuplicate</A>(), <A HREF="../Sys/PetscObjectListAdd.html#PetscObjectListAdd">PetscObjectListAdd</A>()
<BR>
<P>
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/sys/objects/olist.c.html#PetscObjectListRemoveReference">src/sys/objects/olist.c</A>
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