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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="PetscBool"><H1>PetscBool</H1></A>
Logical variable. Actually an int in C and a logical in Fortran.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
typedef enum { PETSC_FALSE,PETSC_TRUE } PetscBool;
</PRE>
<P>
Developer Note: Why have <A HREF="../Sys/PetscBool.html#PetscBool">PetscBool</A> , why not use bool in C? The problem is that K and R C, C99 and C++ all have different mechanisms for
boolean values. It is not easy to have a simple macro that that will work properly in all circumstances with all three mechanisms.
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../include/petscsys.h.html#PetscBool">include/petscsys.h</A>
<BR><A HREF="./index.html">Index of all Sys 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/sys/threadcomm/examples/tutorials/ex2.c.html">src/sys/threadcomm/examples/tutorials/ex2.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex3.c.html">src/snes/examples/tutorials/ex3.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex15.c.html">src/snes/examples/tutorials/ex15.c.html</A><BR>
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