Utf8CheckingInStreamBufWrapper uses a bslma allocator.
Utf8CheckingInStreamBufWrapper
bslma
Declared in <bdlde_utf8checkinginstreambufwrapper.h>
<bdlde_utf8checkinginstreambufwrapper.h>
operator BloombergLP::bslmf::NestedTraitDeclaration<Utf8CheckingInStreamBufWrapper, UsesBslmaAllocator>() const;