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https://github.com/W3SLAV/micropython.git
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e520fa2e0f
This commit implements the 'e' half-float format: 10-bit mantissa, 5-bit exponent. It uses native _Float16 if supported by the compiler, otherwise uses custom bitshifting encoding/decoding routines. Signed-off-by: Matthias Urlichs <matthias@urlichs.de> Signed-off-by: Damien George <damien@micropython.org>
15 lines
457 B
Python
15 lines
457 B
Python
# test struct package with floats
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try:
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import struct
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except ImportError:
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print("SKIP")
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raise SystemExit
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i = 1.0 + 1 / 2
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# TODO: it looks like '=' format modifier is not yet supported
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# for fmt in ('f', 'd', '>f', '>d', '<f', '<d', '=f', '=d'):
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for fmt in ("e", "f", "d", ">e", ">f", ">d", "<e", "<f", "<d"):
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x = struct.pack(fmt, i)
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v = struct.unpack(fmt, x)[0]
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print("%2s: %.17f - %s" % (fmt, v, (i == v) and "passed" or "failed"))
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