[#transaction_identifier-IsNull]
= xref:transaction_identifier.adoc[transaction_identifier]::IsNull
:relfileprefix: ../
:mrdocs:

Wrapped `uint256` methods.

== Synopsis

Declared in `<primitives/transaction_identifier.h>`

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

== Return Value

True if the wrapped value is all zero.


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