From: Wulian233 <1055917385@qq.com>
Date: Mon, 5 May 2025 16:45:15 +0000 (+0800)
Subject: gh-131296: Avoid posixmodule.c warning (GH-133142)
X-Git-Tag: v3.14.0b1~43
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b6c2ef0c7a1e344681f9a8649bb662208ffd01cf;p=thirdparty%2FPython%2Fcpython.git

gh-131296: Avoid posixmodule.c warning (GH-133142)

Clang-cl detects that on 32-bit builds the variable is always smaller than the value. But since the same code is used for other architectures, we can't just _fix_ it. This cast avoids the tautological-constant-out-of-range-compare warning.
---

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 964e98884311..922694fa367a 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -4207,7 +4207,7 @@ posix_getcwd(int use_bytes)
        terminating \0. If the buffer is too small, len includes
        the space needed for the terminator. */
     if (len >= Py_ARRAY_LENGTH(wbuf)) {
-        if (len <= PY_SSIZE_T_MAX / sizeof(wchar_t)) {
+        if ((Py_ssize_t)len <= PY_SSIZE_T_MAX / sizeof(wchar_t)) {
             wbuf2 = PyMem_RawMalloc(len * sizeof(wchar_t));
         }
         else {