FSE_DecompressWksp
FSE_DecompressWksp* const wksp = (FSE_DecompressWksp*)workSpace;
size_t const dtablePos = sizeof(FSE_DecompressWksp) / sizeof(FSE_DTable);
FSE_STATIC_ASSERT(sizeof(FSE_DecompressWksp) % sizeof(FSE_DTable) == 0);