diff options
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/classobject.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Objects/classobject.c b/Objects/classobject.c index ce2c073..f778387 100644 --- a/Objects/classobject.c +++ b/Objects/classobject.c @@ -1013,7 +1013,17 @@ instance_length(PyInstanceObject *inst) if (res == NULL) return -1; if (PyInt_Check(res)) { - outcome = PyInt_AsLong(res); + long temp = PyInt_AsLong(res); + outcome = (int)temp; +#if SIZEOF_INT < SIZEOF_LONG + /* Overflow check -- range of PyInt is more than C int */ + if (outcome != temp) { + PyErr_SetString(PyExc_OverflowError, + "__len__() should return 0 <= outcome < 2**32"); + outcome = -1; + } + else +#endif if (outcome < 0) PyErr_SetString(PyExc_ValueError, "__len__() should return >= 0"); |