[#ERR_COMMON_ERROR]
= ERR_COMMON_ERROR
:mrdocs:

Return whether an error code is a system‐independent common ERR reason.

== Synopsis

Declared in `<openssl/err.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[maybe_unused]]
static
int
ERR_COMMON_ERROR(unsigned long errcode);
----

[NOTE]
====
This entity https://en.cppreference.com/cpp/language/attributes/maybe_unused[may be unused^], and the compiler will not warn about it.
====
== Return Value

Non‐zero if ERR_RFLAG_COMMON is set on `errcode,` otherwise 0.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *errcode*
| Packed OpenSSL error code.
|===


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