[#BloombergLP-bdld-DatumIntMapRef-begin]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdld.adoc[bdld]::xref:BloombergLP/bdld/DatumIntMapRef.adoc[DatumIntMapRef]::begin
:relfileprefix: ../../../
:mrdocs:

Return an iterator to the first map entry.

== Synopsis

Declared in `<bdld_datum.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdld/DatumIntMapRef/const_iterator.adoc[DatumIntMapRef::const_iterator]
begin() const noexcept;
----


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