[#ERR_set_error_data]
= ERR_set_error_data
:mrdocs:

Replace auxiliary data on the most recent error, taking ownership when flagged.

== Synopsis

Declared in `<openssl/err.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
ERR_set_error_data(
    char* data,
    int flags);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *data*
| Auxiliary string or buffer; ownership transfers if `flags` includes ERR_TXT_MALLOCED.
| *flags*
| ERR_TXT_MALLOCED and/or ERR_TXT_STRING describing `data.`
|===


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