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import usys
try:
import uctypes
except ImportError:
print("SKIP")
raise SystemExit
if usys.byteorder != "little":
print("SKIP")
raise SystemExit
desc = {
"ptr": (uctypes.PTR | 0, uctypes.UINT8),
"ptr16": (uctypes.PTR | 0, uctypes.UINT16),
"ptr2": (uctypes.PTR | 0, {"b": uctypes.UINT8 | 0}),
}
bytes = b"01"
addr = uctypes.addressof(bytes)
buf = addr.to_bytes(uctypes.sizeof(desc), "little")
S = uctypes.struct(uctypes.addressof(buf), desc, uctypes.LITTLE_ENDIAN)
print(addr == int(S.ptr))
print(addr == int(S.ptr2))
print(S.ptr[0])
assert S.ptr[0] == ord("0")
print(S.ptr[1])
assert S.ptr[1] == ord("1")
print(hex(S.ptr16[0]))
assert hex(S.ptr16[0]) == "0x3130"
print(S.ptr2[0].b, S.ptr2[1].b)
print(S.ptr2[0].b, S.ptr2[1].b)
print(hex(S.ptr16[0]))
assert (S.ptr2[0].b, S.ptr2[1].b) == (48, 49)
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