commit 1179f4b40f375af5c59cd4b6be9cc313fa0e1a37
author INADA Naoki <methane@users.noreply.github.com> Mon May 21 18:35:41 2018 +0900
committer GitHub <noreply@github.com> Mon May 21 18:35:41 2018 +0900
tree b1c19c071e484c60f207a77571bc34a3a2ea4951
parent e2537521916c5bf88fcf54d4654ff1bcd332be4a

bpo-33583: Add note in PyObject_GC_Resize() doc (GH-7021)

Doc/c-api/gcsupport.rst

diff --git a/Doc/c-api/gcsupport.rst b/Doc/c-api/gcsupport.rst
index f5e0d7e..7f54b6a 100644
--- a/Doc/c-api/gcsupport.rst
+++ b/Doc/c-api/gcsupport.rst
@@ -49,7 +49,7 @@
 .. c:function:: TYPE* PyObject_GC_Resize(TYPE, PyVarObject *op, Py_ssize_t newsize)
 
    Resize an object allocated by :c:func:`PyObject_NewVar`.  Returns the
-   resized object or *NULL* on failure.
+   resized object or *NULL* on failure.  *op* must not be tracked by the collector yet.
 
 
 .. c:function:: void PyObject_GC_Track(PyObject *op)