[#BN_is_odd]
= BN_is_odd
:mrdocs:

Test whether a BIGNUM is odd.

== Synopsis

Declared in `<openssl/bn.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BN_is_odd(xref:BIGNUM.adoc[BIGNUM] const* a);
----

== Return Value

1 if the least‐significant bit of `a` is set, or 0 otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| Value to test.
|===


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