[#BloombergLP-ball-CategoryManager-operator_subs-0d] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/CategoryManager.adoc[CategoryManager]::operator[] :relfileprefix: ../../../ :mrdocs: Subscript operators == Synopses Declared in `<ball_categorymanager.h>` Return a non‐`const` reference to the category at the specified `index` in the registry of this category manager. The behavior is undefined unless `0 <= index < length()`. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:BloombergLP/ball/Category.adoc[Category]& xref:BloombergLP/ball/CategoryManager/operator_subs-0c.adoc[operator[]](int index); ---- [.small]#xref:BloombergLP/ball/CategoryManager/operator_subs-0c.adoc[_» more..._]# Return a `const` reference to the category at the specified `index` in the registry of this category manager. The behavior is undefined unless `0 <= index < length()`. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:BloombergLP/ball/Category.adoc[Category] const& xref:BloombergLP/ball/CategoryManager/operator_subs-0a.adoc[operator[]](int index) const; ---- [.small]#xref:BloombergLP/ball/CategoryManager/operator_subs-0a.adoc[_» more..._]# [.small]#Created with https://www.mrdocs.com[MrDocs]#