[#GenTxid-index]
= xref:GenTxid.adoc[GenTxid]::index
:relfileprefix: ../
:mrdocs:

== Synopsis

Declared in `<primitives/transaction_identifier.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard, __exclude_from_explicit_instantiation__, __abi_tag__]]
constexpr
size_t
index() const noexcept;
----

== Return Value

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====

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