/* Build an array of a particular type */
public static unsafe T[] CreateSZArray <T>(int nitems, void *data_addr)
{
TysosType arrtt = (TysosType)typeof(T[]);
TysosType elemtt = (TysosType)typeof(T);
int elemsize;
if (elemtt.IsValueType)
{
elemsize = elemtt.GetClassSize() - ClassOperations.GetBoxedTypeDataOffset();
}
else
{
elemsize = OtherOperations.GetPointerSize();
}
if (data_addr == null)
{
data_addr = MemoryOperations.GcMalloc(elemsize * nitems);
}
byte *ret = (byte *)MemoryOperations.GcMalloc(ArrayOperations.GetArrayClassSize() + 8); // extra space for lobounds and length array
void *vtbl = *(void **)((byte *)CastOperations.ReinterpretAsPointer(arrtt) + ClassOperations.GetSystemTypeImplOffset());
*(void **)(ret + ClassOperations.GetVtblFieldOffset()) = vtbl;
*(ulong *)(ret + ClassOperations.GetMutexLockOffset()) = 0;
*(void **)(ret + ArrayOperations.GetElemTypeOffset()) = *(void **)((byte *)CastOperations.ReinterpretAsPointer(elemtt) + ClassOperations.GetSystemTypeImplOffset());
*(int *)(ret + ArrayOperations.GetElemSizeOffset()) = elemsize;
*(void **)(ret + ArrayOperations.GetInnerArrayOffset()) = data_addr;
*(void **)(ret + ArrayOperations.GetLoboundsOffset()) = ret + ArrayOperations.GetArrayClassSize();
*(void **)(ret + ArrayOperations.GetSizesOffset()) = ret + ArrayOperations.GetArrayClassSize() + 4;
*(int *)(ret + ArrayOperations.GetRankOffset()) = 1;
*(int *)(ret + ArrayOperations.GetArrayClassSize()) = 0; // lobounds[0]
*(int *)(ret + ArrayOperations.GetArrayClassSize() + 4) = nitems; // sizes[0]
return((T[])CastOperations.ReinterpretAsObject(ret));
}
