[#BloombergLP-ball-UserFields-2constructor-0d] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/UserFields.adoc[UserFields]::UserFields :relfileprefix: ../../../ :mrdocs: Constructors == Synopses Declared in `<ball_userfields.h>` Create an empty `UserFields` object. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- explicit xref:BloombergLP/ball/UserFields/2constructor-09.adoc[UserFields](xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0); ---- [.small]#xref:BloombergLP/ball/UserFields/2constructor-09.adoc[_» more..._]# Create a `UserFields` object having the same value as the specified `original` object. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:BloombergLP/ball/UserFields/2constructor-0f.adoc[UserFields]( xref:BloombergLP/ball/UserFields.adoc[UserFields] const& original, xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0); ---- [.small]#xref:BloombergLP/ball/UserFields/2constructor-0f.adoc[_» more..._]# [.small]#Created with https://www.mrdocs.com[MrDocs]#