[#BloombergLP-ball-UserFields-operator_subs-0a]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/UserFields.adoc[UserFields]::operator[]
:relfileprefix: ../../../
:mrdocs:

Subscript operators

== Synopses

Declared in `<ball_userfields.h>`

Return a reference providing modifiable access to the value at the specified `index`. The behavior is undefined unless `0 <= index && index < length()`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/ball/UserFieldValue.adoc[UserFieldValue]&
xref:BloombergLP/ball/UserFields/operator_subs-0d.adoc[operator[]](int index);
----

[.small]#xref:BloombergLP/ball/UserFields/operator_subs-0d.adoc[_» more..._]#

Return a reference providing non‐modifiable access to the value at the specified `index`. The behavior is undefined unless `0 <= index && index < length()`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/ball/UserFieldValue.adoc[UserFieldValue] const&
xref:BloombergLP/ball/UserFields/operator_subs-05.adoc[operator[]](int index) const;
----

[.small]#xref:BloombergLP/ball/UserFields/operator_subs-05.adoc[_» more..._]#


[.small]#Created with https://www.mrdocs.com[MrDocs]#