kopia lustrzana https://github.com/micropython/micropython
39 wiersze
834 B
Python
39 wiersze
834 B
Python
import sys
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try:
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import uctypes
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except ImportError:
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print("SKIP")
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raise SystemExit
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if sys.byteorder != "little":
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print("SKIP")
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raise SystemExit
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desc = {
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"ptr": (uctypes.PTR | 0, uctypes.UINT8),
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"ptr16": (uctypes.PTR | 0, uctypes.UINT16),
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"ptr2": (uctypes.PTR | 0, {"b": uctypes.UINT8 | 0}),
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}
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bytes = b"01"
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addr = uctypes.addressof(bytes)
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buf = addr.to_bytes(uctypes.sizeof(desc), "little")
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S = uctypes.struct(uctypes.addressof(buf), desc, uctypes.LITTLE_ENDIAN)
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print(addr == int(S.ptr))
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print(addr == int(S.ptr2))
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print(S.ptr[0])
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assert S.ptr[0] == ord("0")
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print(S.ptr[1])
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assert S.ptr[1] == ord("1")
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print(hex(S.ptr16[0]))
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assert hex(S.ptr16[0]) == "0x3130"
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print(S.ptr2[0].b, S.ptr2[1].b)
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print(S.ptr2[0].b, S.ptr2[1].b)
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print(hex(S.ptr16[0]))
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assert (S.ptr2[0].b, S.ptr2[1].b) == (48, 49)
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