fix

eendebakpt · eendebakpt · commit 65daaeec797f · 2025-03-14T15:33:23.000+01:00
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
@@ -3634,9 +3634,10 @@ repeat_next(PyObject *op)
     if (cnt == 0) {
         return NULL;
     }
-    cnt--;
-    assert(cnt >=0);
-    FT_ATOMIC_STORE_SSIZE_RELAXED(ro->cnt, cnt);
+    if (cnt > 0) {
+        cnt--;
+        FT_ATOMIC_STORE_SSIZE_RELAXED(ro->cnt, cnt);
+    }
     return Py_NewRef(ro->element);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -3634,9 +3634,10 @@ repeat_next(PyObject *op)`
`3634`	`3634`	`if (cnt == 0) {`
`3635`	`3635`	`return NULL;`
`3636`	`3636`	`}`
`3637`		`- cnt--;`
`3638`		`- assert(cnt >=0);`
`3639`		`- FT_ATOMIC_STORE_SSIZE_RELAXED(ro->cnt, cnt);`
	`3637`	`+ if (cnt > 0) {`
	`3638`	`+ cnt--;`
	`3639`	`+ FT_ATOMIC_STORE_SSIZE_RELAXED(ro->cnt, cnt);`
	`3640`	`+ }`
`3640`	`3641`	`return Py_NewRef(ro->element);`
`3641`	`3642`	`}`
`3642`	`3643`