[#ERR_reason_error_string]
= ERR_reason_error_string
:mrdocs:

Return the registered reason‐string for a packed error code.

== Synopsis

Declared in `<openssl/err.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char const*
ERR_reason_error_string(unsigned long e);
----

== Return Value

Reason description string (do not free), or NULL if none is registered.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *e*
| Packed error code whose reason field is looked up.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#