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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</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-3.7.5 v3.7.5 docs/manualpages/IS/ISBlockGetIndicesF90.html "><small>Report Typos and Errors</small></a></div>
<A NAME="ISBlockGetIndicesF90"><H1>ISBlockGetIndicesF90</H1></A>
Accesses the elements of an index set from Fortran90. The users should call <A HREF="../IS/ISBlockRestoreIndicesF90.html#ISBlockRestoreIndicesF90">ISBlockRestoreIndicesF90</A>() after having looked at the indices. The user should NOT change the indices.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
<A HREF="../IS/ISBlockGetIndicesF90.html#ISBlockGetIndicesF90">ISBlockGetIndicesF90</A>(<A HREF="../IS/IS.html#IS">IS</A> x,{integer, pointer :: xx_v(:)},integer ierr)
</PRE>
Not collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>x </B> -index set
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>xx_v </B></TD><TD>- the Fortran90 pointer to the array
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ierr </B></TD><TD>- error code
Example of Usage:
</TD></TR></TABLE>
<PRE>
<A HREF="../Sys/PetscScalar.html#PetscScalar">PetscScalar</A>, pointer xx_v(:)
....
call <A HREF="../IS/ISBlockGetIndicesF90.html#ISBlockGetIndicesF90">ISBlockGetIndicesF90</A>(x,xx_v,ierr)
a = xx_v(3)
call <A HREF="../IS/ISBlockRestoreIndicesF90.html#ISBlockRestoreIndicesF90">ISBlockRestoreIndicesF90</A>(x,xx_v,ierr)
</PRE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Not yet supported for all F90 compilers
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../IS/ISBlockRestoreIndicesF90.html#ISBlockRestoreIndicesF90">ISBlockRestoreIndicesF90</A>(), <A HREF="../IS/ISGetIndices.html#ISGetIndices">ISGetIndices</A>(), <A HREF="../IS/ISRestoreIndices.html#ISRestoreIndices">ISRestoreIndices</A>(),
<BR><A HREF="../IS/ISRestoreIndices.html#ISRestoreIndices">ISRestoreIndices</A>()
<P>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/vec/is/is/interface/index.c.html#ISBlockGetIndicesF90">src/vec/is/is/interface/index.c</A>
<BR><A HREF="./index.html">Index of all IS routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/vec/is/is/examples/tutorials/ex3f90.F.html">src/vec/is/is/examples/tutorials/ex3f90.F.html</A><BR>
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