[#BN_options]
= BN&lowbar;options
:mrdocs:

Return a short string describing compiled BIGNUM word size &sol; options&period;

== Synopsis

Declared in `&lt;openssl&sol;bn&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char*
BN&lowbar;options();
----

== Return Value

Static NUL&hyphen;terminated options string (for example &quot;bn(64,64)&quot;)&period;


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