[#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. == Synopsis Declared in `<ball_attributecontainerlist.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- bool valid() const; ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#