[#EVP_MD_do_all_sorted]
= EVP_MD_do_all_sorted
:mrdocs:

Call `fn` for each built‐in digest name, in sorted name order (legacy).

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
EVP_MD_do_all_sorted(
    void(* fn)(xref:EVP_MD.adoc[EVP_MD] const*, char const*, char const*, void*),
    void* arg);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *fn*
| Callback receiving the digest method, canonical name, alias, and `arg.`
| *arg*
| Opaque pointer forwarded to every `fn` invocation.
|===


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