[#transaction_identifier-IsNull]
= xref:transaction_identifier.adoc[transaction&lowbar;identifier]::IsNull
:relfileprefix: ../
:mrdocs:

Wrapped `uint256` methods&period;

== Synopsis

Declared in `&lt;primitives&sol;transaction&lowbar;identifier&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
bool
IsNull() const;
----

== Return Value

True if the wrapped value is all zero&period;


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