Fix int __sizeof__ to use a minimum absolute ob_size of 1

ionite34 · ionite34 · commit 88e249bf0048 · 2023-01-01T23:08:55.000+08:00
Fixes behavior where int (and subtypes like bool) __sizeof__ under-reports true size as it did not take into account the size 1 `ob_digit` array for empty ints.
diff --git a/Objects/longobject.c b/Objects/longobject.c
@@ -5879,7 +5879,7 @@ int___sizeof___impl(PyObject *self)
 {
     Py_ssize_t res;
 
-    res = offsetof(PyLongObject, ob_digit) + Py_ABS(Py_SIZE(self))*sizeof(digit);
+    res = offsetof(PyLongObject, ob_digit) + Py_MAX(Py_ABS(Py_SIZE(self)), 1)*sizeof(digit);
     return res;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -5879,7 +5879,7 @@ int___sizeof___impl(PyObject *self)`
`5879`	`5879`	`{`
`5880`	`5880`	`Py_ssize_t res;`
`5881`	`5881`
`5882`		`- res = offsetof(PyLongObject, ob_digit) + Py_ABS(Py_SIZE(self))*sizeof(digit);`
	`5882`	`+ res = offsetof(PyLongObject, ob_digit) + Py_MAX(Py_ABS(Py_SIZE(self)), 1)*sizeof(digit);`
`5883`	`5883`	`return res;`
`5884`	`5884`	`}`
`5885`	`5885`