[#BIO_err_is_non_fatal]
= BIO_err_is_non_fatal
:mrdocs:

Report whether a system or socket error code is a non‐fatal retryable I/O condition.

== Synopsis

Declared in `<openssl/bio.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BIO_err_is_non_fatal(unsigned int errcode);
----

== Return Value

1 if the error is considered non‐fatal for BIO I/O, or 0 otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *errcode*
| Error code such as a value from errno / WSAGetLastError().
|===


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