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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/PETSC_HASH_MAP.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PETSC_HASH_MAP"><H1>PETSC_HASH_MAP</H1></A>
Instantiate a PETSc hash table map type
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include <petsc/private/hashmap.h>
<A HREF="../Sys/PETSC_HASH_MAP.html#PETSC_HASH_MAP">PETSC_HASH_MAP</A>(HMapT, KeyType, ValType, HashFunc, EqualFunc, DefaultValue)
</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>HMapT </B></TD><TD>- The hash table map type name suffix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>KeyType </B></TD><TD>- The type of keys
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ValType </B></TD><TD>- The type of values
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>HashFunc </B></TD><TD>- Routine or function-like macro computing hash values from keys
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>EqualFunc </B></TD><TD>- Routine or function-like macro computing whether two values are equal
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>DefaultValue </B></TD><TD>- Default value to use for queries in case of missing keys
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Sys/PetscHMapT.html#PetscHMapT">PetscHMapT</A>, <A HREF="../Sys/PetscHMapTCreate.html#PetscHMapTCreate">PetscHMapTCreate</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../include/petsc/private/hashmap.h.html#PETSC_HASH_MAP">include/petsc/private/hashmap.h</A>
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