[#BloombergLP-bslmt-ThreadGroup-2constructor] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/ThreadGroup.adoc[ThreadGroup]::ThreadGroup :relfileprefix: ../../../ :mrdocs: Create an empty thread group. Optionally specify `basicAllocator` will be used to supply memory. If `basicAllocator` is 0, the currently installed default allocator will be used. == Synopsis Declared in `<bslmt_threadgroup.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- explicit ThreadGroup(xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#