[#ASYNC_stack_free_fn]
= ASYNC_stack_free_fn
:mrdocs:

Free a stack previously returned by an ASYNC_stack_alloc_fn callback.

== Synopsis

Declared in `<openssl/async.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef void(* ASYNC_stack_free_fn)(void*);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *addr*
| Stack base pointer returned by the matching allocator.
|===


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