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Raise OverflowError when appropriate on long->float conversion. Most of

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the fiddling is simply due to that no caller of PyLong_AsDouble ever
checked for failure (so that's fixing old bugs).  PyLong_AsDouble is much
faster for big inputs now too, but that's more of a happy consequence
than a design goal.
This commit is contained in:
Tim Peters 2001-09-04 05:14:19 +00:00
parent 1832de4bc0
commit 9fffa3eea3
5 changed files with 76 additions and 23 deletions
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11
Objects/floatobject.c
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@ -271,18 +271,19 @@ PyFloat_AsStringEx(char *buf, PyFloatObject *v, int precision)
return obj;
static int
convert_to_double(PyObject **v,
double *dbl)
convert_to_double(PyObject **v, double *dbl)
{
register PyObject *obj = *v;
if (PyInt_Check(obj)) {
*dbl = (double)PyInt_AS_LONG(obj);
}
else if (PyLong_Check(obj)) {
PyFPE_START_PROTECT("convert_to_double", {*v=NULL;return -1;})
*dbl = PyLong_AsDouble(obj);
PyFPE_END_PROTECT(*dbl)
if (*dbl == -1.0 && PyErr_Occurred()) {
*v = NULL;
return -1;
}
}
else {
Py_INCREF(Py_NotImplemented);