[#BIT_STRING_BITNAME_st]
= BIT_STRING_BITNAME_st
:mrdocs:

Mapping of a named bit in an ASN.1 BIT STRING to its bit number.

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct BIT_STRING_BITNAME_st;
----

== Description

Tables of these entries are used when printing or looking up bits by long or short name (for example key‐usage bits).

== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:BIT_STRING_BITNAME_st/bitnum.adoc[`bitnum`] 
| Zero‐based bit number within the BIT STRING.
| xref:BIT_STRING_BITNAME_st/lname.adoc[`lname`] 
| Long human‐readable name for the bit (may be NULL).
| xref:BIT_STRING_BITNAME_st/sname.adoc[`sname`] 
| Short name or abbreviation for the bit (may be NULL).
|===



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