micropython/tests/basics/struct1.py

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import struct
print(struct.calcsize("<bI"))
print(struct.unpack("<bI", b"\x80\0\0\x01\0"))
print(struct.calcsize(">bI"))
print(struct.unpack(">bI", b"\x80\0\0\x01\0"))
# 32-bit little-endian specific
#print(struct.unpack("bI", b"\x80\xaa\x55\xaa\0\0\x01\0"))
print(struct.pack("<i", 1))
print(struct.pack(">i", 1))
print(struct.pack("<h", 1))
print(struct.pack(">h", 1))
print(struct.pack("<b", 1))
print(struct.pack(">b", 1))
print(struct.pack("<bI", -128, 256))
print(struct.pack(">bI", -128, 256))
print(struct.calcsize("100sI"))
print(struct.calcsize("97sI"))
print(struct.unpack("<6sH", b"foo\0\0\0\x12\x34"))
print(struct.pack("<6sH", b"foo", 10000))