[#OPENSSL_sk_deep_copy]
= OPENSSL_sk_deep_copy
:mrdocs:

Deep‐copy a stack by duplicating each element with `c.`

== Synopsis

Declared in `<openssl/stack.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:OPENSSL_STACK.adoc[OPENSSL_STACK]*
OPENSSL_sk_deep_copy(
    xref:OPENSSL_STACK.adoc[OPENSSL_STACK] const* st,
    xref:OPENSSL_sk_copyfunc.adoc[OPENSSL_sk_copyfunc] c,
    xref:OPENSSL_sk_freefunc.adoc[OPENSSL_sk_freefunc] f);
----

== Return Value

Newly allocated stack, or NULL on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *st*
| Source stack.
| *c*
| Element copy callback.
| *f*
| Element free callback used to clean up on failure (and by callers later).
|===


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