kopia lustrzana https://github.com/micropython/micropython
28 wiersze
837 B
Python
28 wiersze
837 B
Python
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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desc = {
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"f1": 0 | uctypes.UINT32,
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"f2": 4 | uctypes.UINT8,
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}
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# uctypes.NATIVE is default
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print(uctypes.sizeof(desc) == uctypes.sizeof(desc, uctypes.NATIVE))
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# Here we assume that that we run on a platform with conventional ABI
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# (which rounds up structure size based on max alignment). For platforms
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# where that doesn't hold, this tests should be just disabled in the runner.
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print(uctypes.sizeof(desc, uctypes.NATIVE) > uctypes.sizeof(desc, uctypes.LITTLE_ENDIAN))
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# When taking sizeof of instantiated structure, layout type param
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# is prohibited (because structure already has its layout type).
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s = uctypes.struct(0, desc, uctypes.LITTLE_ENDIAN)
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try:
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uctypes.sizeof(s, uctypes.LITTLE_ENDIAN)
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except TypeError:
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print("TypeError")
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