address review: restore comment

skirpichev · skirpichev · commit f5df517c5517 · 2026-04-01T15:28:03.000+03:00
diff --git a/Include/internal/pycore_long.h b/Include/internal/pycore_long.h
@@ -285,7 +285,13 @@ _PyLong_SameSign(const PyLongObject *a, const PyLongObject *b)
     return (a->long_value.lv_tag & SIGN_MASK) == (b->long_value.lv_tag & SIGN_MASK);
 }
 
-/* Initialize a freshly-allocated int. */
+/* Initialize a freshly-allocated int.
+ *
+ * Fast operations for single digit integers (including zero)
+ * assume that there is always at least one digit present.
+ * The digit has to be initialized explicitly to avoid
+ * use-of-uninitialized-value.
+ */
 static inline void
 _PyLong_InitTag(PyLongObject *op)
 {

Original file line number	Diff line number	Diff line change
`@@ -285,7 +285,13 @@ _PyLong_SameSign(const PyLongObject a, const PyLongObject b)`
`285`	`285`	`return (a->long_value.lv_tag & SIGN_MASK) == (b->long_value.lv_tag & SIGN_MASK);`
`286`	`286`	`}`
`287`	`287`
`288`		`-/* Initialize a freshly-allocated int. */`
	`288`	`+/* Initialize a freshly-allocated int.`
	`289`	`+ *`
	`290`	`+ * Fast operations for single digit integers (including zero)`
	`291`	`+ * assume that there is always at least one digit present.`
	`292`	`+ * The digit has to be initialized explicitly to avoid`
	`293`	`+ * use-of-uninitialized-value.`
	`294`	`+ */`
`289`	`295`	`static inline void`
`290`	`296`	`_PyLong_InitTag(PyLongObject *op)`
`291`	`297`	`{`