[#ERR_print_errors_cb]
= ERR_print_errors_cb
:mrdocs:

Print and clear all queued errors, invoking `cb` for each formatted line.

== Synopsis

Declared in `<openssl/err.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
ERR_print_errors_cb(
    int(* cb)(char const*, size_t, void*),
    void* u);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cb*
| Callback receiving each error line and `u;` return value is ignored.
| *u*
| Opaque argument passed to `cb.`
|===


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