[#uint256-2constructor-0f]
= xref:uint256.adoc[uint256]::uint256
:relfileprefix: ../
:mrdocs:

Constructs a uint256 from a single byte constant between 1 and 255.

== Synopsis

Declared in `<uint256.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
explicit
uint256(uint8_t v);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *v*
| The byte value placed in the first position of the blob.
|===


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