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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</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-3.10.3 v3.10.3 docs/manualpages/IS/ISLocate.html "><small>Report Typos and Errors</small></a></div>
<A NAME="ISLocate"><H1>ISLocate</H1></A>
determine the location of an index within the local component of an index set
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscis.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../IS/ISLocate.html#ISLocate">ISLocate</A>(<A HREF="../IS/IS.html#IS">IS</A> is, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> key, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> *location)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>is </B></TD><TD>- the index set
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>key </B></TD><TD>- the search key
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>location </B> -if >= 0, a location within the index set that is equal to the key, otherwise the key is not in the index set
<br>
<P>
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/vec/is/is/interface/index.c.html#ISLocate">src/vec/is/is/interface/index.c</A>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/vec/is/is/impls/block/block.c.html#ISLocate_Block">ISLocate_Block in src/vec/is/is/impls/block/block.c</A><BR>
<A HREF="../../../src/vec/is/is/impls/general/general.c.html#ISLocate_General">ISLocate_General in src/vec/is/is/impls/general/general.c</A><BR>
<A HREF="../../../src/vec/is/is/impls/stride/stride.c.html#ISLocate_Stride">ISLocate_Stride in src/vec/is/is/impls/stride/stride.c</A><BR>
<BR><A HREF="./index.html">Index of all IS routines</A>
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