[#uint256-begin-0c4]
= xref:uint256.adoc[uint256]::begin
:relfileprefix: ../
:mrdocs:

Returns a pointer to the first byte of the blob.

== Synopsis

Declared in `<uint256.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
unsigned char const*
begin() const;
----

== Return Value

A const pointer to the first byte of the blob.


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