Skip Montanaro <[EMAIL PROTECTED]> added the comment: 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. Skip _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue4506> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com