[#OPENSSL_sk_pop]
= OPENSSL_sk_pop
:mrdocs:

Remove and return the last element of a stack.

== Synopsis

Declared in `<openssl/stack.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void*
OPENSSL_sk_pop(xref:OPENSSL_STACK.adoc[OPENSSL_STACK]* st);
----

== Return Value

Former top element, or NULL if `st` is empty/NULL.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *st*
| Stack to modify.
|===


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