[#OPENSSL_LH_COMPFUNC]
= OPENSSL&lowbar;LH&lowbar;COMPFUNC
:mrdocs:

Comparison callback returning &lt;0 &sol; 0 &sol; &gt;0 for two LHASH element pointers&period;

== Synopsis

Declared in `&lt;openssl&sol;lhash&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef int(* OPENSSL&lowbar;LH&lowbar;COMPFUNC)(void const*, void const*);
----

== Return Value

Negative, zero, or positive as in strcmp()&hyphen;style ordering&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| First element pointer&period;
| *b*
| Second element pointer&period;
|===


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