[#OPENSSL_sk_new]
= OPENSSL_sk_new
:mrdocs:

Allocate an empty stack with an optional comparison function.

== Synopsis

Declared in `<openssl/stack.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:OPENSSL_STACK.adoc[OPENSSL_STACK]*
OPENSSL_sk_new(xref:OPENSSL_sk_compfunc.adoc[OPENSSL_sk_compfunc] cmp);
----

== Return Value

New stack, or NULL on failure; free with OPENSSL_sk_free().

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cmp*
| Comparison callback for OPENSSL_sk_find()/sort, or NULL.
|===


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