[#BloombergLP-ball-AttributeContainerListIterator-valid]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/AttributeContainerListIterator.adoc[AttributeContainerListIterator]::valid
:relfileprefix: ../../../
:mrdocs:

Return `true` if this iterator is at a valid position in the sequence of `AttributeContainer` addresses and `false` otherwise&period;

== Synopsis

Declared in `&lt;ball&lowbar;attributecontainerlist&period;h&gt;`

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


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