[#HexStr-02a]
= HexStr
:mrdocs:

Convert a span of chars to a lower&hyphen;case hexadecimal string&period;

== Synopsis

Declared in `&lt;crypto&sol;hex&lowbar;base&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::string
HexStr(std::span&lt;char const&gt; s);
----

== Return Value

The lower&hyphen;case hexadecimal representation of `s&period;`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| The bytes to encode&period;
|===


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