This partial specialization of bsl::conditional, for when the (template parameter) value t_COND is false, provides a typedef type that is an alias to the (template parameter) type t_FALSE_TYPE.
Synopsis
Declared in <bslmf_conditional.h>
template<>
struct conditional<false, PackedIntArrayImp<PackedIntArrayImp_Unsigned>, PackedIntArrayImp<PackedIntArrayImp_Signed>>;