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Merged revisions 79809 via svnmerge from 

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79809 | mark.dickinson | 2010-04-05 19:54:51 +0100 (Mon, 05 Apr 2010) | 1 line

  Use a better NaN test in _Py_HashDouble as well.
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This commit is contained in:
Mark Dickinson 2010-04-06 10:29:17 +00:00
parent fdd4d0f5d6
commit 1472150cc2
1 changed files with 6 additions and 3 deletions
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9
Objects/object.c
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@ -656,9 +656,12 @@ _Py_HashDouble(double v)
* of mapping keys will turn out weird.
*/
if (Py_IS_INFINITY(v))
/* can't convert to long int -- arbitrary */
v = v < 0 ? -271828.0 : 314159.0;
if (!Py_IS_FINITE(v)) {
if (Py_IS_INFINITY(v))
return v < 0 ? -271828 : 314159;
else
return 0;
}
fractpart = modf(v, &intpart);
if (fractpart == 0.0) {
/* This must return the same hash as an equal int or long. */