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test_math ulp computation was wrong on big-endian systems

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Mark Dickinson 2009-10-17 07:06:37 +00:00
parent 0447cd6fdc
commit 59ca92093c
1 changed files with 1 additions and 1 deletions
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2
Lib/test/test_math.py
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@ -43,7 +43,7 @@ def to_ulps(x):
where C doubles are represented in IEEE 754 binary64 format.
"""
n = struct.unpack('q', struct.pack('<d', x))[0]
n = struct.unpack('<q', struct.pack('<d', x))[0]
if n < 0:
n = ~(n+2**63)
return n