[#HexDigit]
= HexDigit
:mrdocs:

Return the numeric value of a hexadecimal digit character.

== Synopsis

Declared in `<crypto/hex_base.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
signed char
HexDigit(char c);
----

== Return Value

The value 0‐15 for a valid digit, or ‐1 if `c` is not a hexadecimal digit.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *c*
| The hexadecimal digit character to decode.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#