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uctypes_32bit_intbig.py
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53 lines (40 loc) · 894 Bytes
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# This test checks previously known problem values for 32-bit ports.
# It's less useful for 64-bit ports.
try:
import uctypes
except ImportError:
print("SKIP")
raise SystemExit
buf = b"12345678abcd"
struct = uctypes.struct(
uctypes.addressof(buf),
{"f32": uctypes.UINT32 | 0, "f64": uctypes.UINT64 | 4},
uctypes.LITTLE_ENDIAN
)
struct.f32 = 0x7fffffff
print(buf)
struct.f32 = 0x80000000
print(buf)
struct.f32 = 0xff010203
print(buf)
struct.f64 = 0x80000000
print(buf)
struct.f64 = 0x80000000 * 2
print(buf)
print("=")
buf = b"12345678abcd"
struct = uctypes.struct(
uctypes.addressof(buf),
{"f32": uctypes.UINT32 | 0, "f64": uctypes.UINT64 | 4},
uctypes.BIG_ENDIAN
)
struct.f32 = 0x7fffffff
print(buf)
struct.f32 = 0x80000000
print(buf)
struct.f32 = 0xff010203
print(buf)
struct.f64 = 0x80000000
print(buf)
struct.f64 = 0x80000000 * 2
print(buf)