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When comparing objects of different types (which is done by comparing

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the type names), make sure that numeric objects are considered smaller
than all other objects, by forcing their name to "".
This commit is contained in:
Guido van Rossum 1998-06-09 18:58:44 +00:00
parent 5d23758be7
commit cd5a5f627a
1 changed files with 14 additions and 7 deletions
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21
Objects/object.c
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@ -284,7 +284,7 @@ int
PyObject_Compare(v, w)
PyObject *v, *w;
{
PyTypeObject *tp;
PyTypeObject *vtp, *wtp;
if (v == NULL || w == NULL) {
PyErr_BadInternalCall();
return -1;
@ -309,9 +309,11 @@ PyObject_Compare(v, w)
Py_DECREF(res);
return (c < 0) ? -1 : (c > 0) ? 1 : 0;
}
if ((tp = v->ob_type) != w->ob_type) {
if (tp->tp_as_number != NULL &&
w->ob_type->tp_as_number != NULL) {
if ((vtp = v->ob_type) != (wtp = w->ob_type)) {
char *vname = vtp->tp_name;
char *wname = wtp->tp_name;
if (vtp->tp_as_number != NULL &&
wtp->tp_as_number != NULL) {
int err;
err = PyNumber_CoerceEx(&v, &w);
if (err < 0)
@ -323,11 +325,16 @@ PyObject_Compare(v, w)
return cmp;
}
}
return strcmp(tp->tp_name, w->ob_type->tp_name);
else if (vtp->tp_as_number != NULL)
vname = "";
else if (wtp->tp_as_number != NULL)
wname = "";
/* Numerical types compare smaller than all other types */
return strcmp(vname, wname);
}
if (tp->tp_compare == NULL)
if (vtp->tp_compare == NULL)
return (v < w) ? -1 : 1;
return (*tp->tp_compare)(v, w);
return (*vtp->tp_compare)(v, w);
}
long