Mark> If you have time, could you try the attached patch and report what
Mark> gets printed when cmath.exp(710+1.5j) is called? On my machine, I
Mark> get:
...
Looks similar here:
% ./python
Python 3.0 (r30:67503, Dec 3 2008, 14:46:39)
[GCC 4.2.2] on sunos5
Type "help", "copyright", "credits" or "license" for more information.
>>> import cmath
>>> cmath.exp(complex(710.0, 1.5))
r.real, r.imag: 1.58027e+307, Inf
Py_IS_INFINITY(r.real), Py_IS_INFINITY(r.imag): 0, 1
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OverflowError: math range error
If I then comment back out your two printf statements and recompile, it once
again fails to raise OverflowError:
% ./python
Python 3.0 (r30:67503, Dec 3 2008, 14:46:39)
[GCC 4.2.2] on sunos5
Type "help", "copyright", "credits" or "license" for more information.
>>> import cmath ; cmath.exp(complex(710.0, 1.5))
(1.5802653829857376e+307+inf*j)
Very weird. If I uncomment either of your printf statements OverflowError
seems to be raised as expected. It's as if some register bit isn't being
set unless you reference r.real or r.imag multiple times.
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