kopia lustrzana https://github.com/micropython/micropython
54 wiersze
896 B
Python
54 wiersze
896 B
Python
# This test checks previously known problem values for 32-bit ports.
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# It's less useful for 64-bit ports.
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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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buf = b"12345678abcd"
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struct = uctypes.struct(
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uctypes.addressof(buf),
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{"f32": uctypes.UINT32 | 0, "f64": uctypes.UINT64 | 4},
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uctypes.LITTLE_ENDIAN,
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)
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struct.f32 = 0x7FFFFFFF
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print(buf)
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struct.f32 = 0x80000000
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print(buf)
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struct.f32 = 0xFF010203
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print(buf)
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struct.f64 = 0x80000000
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print(buf)
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struct.f64 = 0x80000000 * 2
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print(buf)
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print("=")
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buf = b"12345678abcd"
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struct = uctypes.struct(
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uctypes.addressof(buf),
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{"f32": uctypes.UINT32 | 0, "f64": uctypes.UINT64 | 4},
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uctypes.BIG_ENDIAN,
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)
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struct.f32 = 0x7FFFFFFF
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print(buf)
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struct.f32 = 0x80000000
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print(buf)
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struct.f32 = 0xFF010203
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print(buf)
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struct.f64 = 0x80000000
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print(buf)
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struct.f64 = 0x80000000 * 2
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print(buf)
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