[#OPENSSL_sk_new_reserve]
= OPENSSL_sk_new_reserve
:mrdocs:

Allocate a stack with comparison function `c` and room for `n` elements.

== Synopsis

Declared in `<openssl/stack.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:OPENSSL_STACK.adoc[OPENSSL_STACK]*
OPENSSL_sk_new_reserve(
    xref:OPENSSL_sk_compfunc.adoc[OPENSSL_sk_compfunc] c,
    int n);
----

== Return Value

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

== Parameters

[cols="1,4"]
|===
| Name| Description
| *c*
| Comparison callback, or NULL for an unordered stack.
| *n*
| Number of element slots to reserve up front.
|===


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