bpo-41366: Fix clang warning for sign conversion (GH-21592)

(cherry picked from commit 680254a8dc64e3ada00f88a7c42d41eb02108353)

Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>

diff --git a/Include/cpython/unicodeobject.h b/Include/cpython/unicodeobject.h
index 30a7e78f143b36118304fc1aed73cfd7c4b048f9..1fc732abeb5553cc467ebceba2f71b50e48a2373 100644 (file)
--- a/Include/cpython/unicodeobject.h
+++ b/Include/cpython/unicodeobject.h
@@ -52,7 +52,7 @@ extern "C" {
 
 Py_DEPRECATED(3.3) static inline void
 Py_UNICODE_COPY(Py_UNICODE *target, const Py_UNICODE *source, Py_ssize_t length) {
-    memcpy(target, source, length * sizeof(Py_UNICODE));
+    memcpy(target, source, (size_t)(length) * sizeof(Py_UNICODE));
 }
 
 Py_DEPRECATED(3.3) static inline void