[#BIO_test_flags]
= BIO_test_flags
:mrdocs:

Test whether any of the given flag bits are set on a BIO.

== Synopsis

Declared in `<openssl/bio.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BIO_test_flags(
    xref:BIO.adoc[BIO] const* b,
    int flags);
----

== Return Value

Bitwise AND of the BIO's flags with `flags.`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *b*
| BIO whose flags are examined.
| *flags*
| Bitmask of BIO_FLAGS_* values to test.
|===


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