[#arith_uint256-2constructor-00a]
= xref:arith_uint256.adoc[arith_uint256]::arith_uint256
:relfileprefix: ../
:mrdocs:

Constructs a 256‐bit integer with a value of zero.

== Synopsis

Declared in `<arith_uint256.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
arith_uint256() = default;
----


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