mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-02 16:13:13 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Issue 3118: make test_math pass on Ubuntu/ia64. exp(-745.0) was raising

Browse source 
OverflowError incorrectly on this platform, presumably as a result of
the libm setting errno = ERANGE for this call.
This commit is contained in:
Mark Dickinson 2008-06-17 21:16:55 +00:00
parent 21a45e1bea
commit fb1c4b98e9
1 changed files with 8 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

11
Modules/mathmodule.c
View file

@ -82,12 +82,17 @@ is_error(double x)
* should return a zero on underflow, and +- HUGE_VAL on
* overflow, so testing the result for zero suffices to
* distinguish the cases).
*
* On some platforms (Ubuntu/ia64) it seems that errno can be
* set to ERANGE for subnormal results that do *not* underflow
* to zero. So to be safe, we'll ignore ERANGE whenever the
* function result is less than one in absolute value.
*/
if (x)
if (fabs(x) < 1.0)
result = 0;
else
PyErr_SetString(PyExc_OverflowError,
"math range error");
else
result = 0;
}
else
/* Unexpected math error */