Scaleform::AllocatorBaseDH
template <int SID = Stat_Default_Mem> class AllocatorBaseDH;
AllocatorBaseDH is a dynamic-heap allocator which allocates memory for containers created on the stack, or anywhere else, where the heap pointer is explicitly specified. The difference between AllocatorBaseDH and AllocatorBaseLH is that AllocatorBaseLH takes any pointer inside the heap, while AllocatorBaseDH requires a pointer to the heap itself. If SID is Stat_Default_Mem, the allocator inherits the SID which is used as the StatId for allocation identifier.
SF_Allocator.h