From 5fe6b63a62dfd4c3454b17aa80a2bfb4765f8a27 Mon Sep 17 00:00:00 2001
From: Thomas Haller <thaller@redhat.com>
Date: Mon, 31 Jul 2023 11:48:40 +0200
Subject: [PATCH] std-aux: add static-asserts about signedness for
 NM_CMP_DIRECT()

---
 src/libnm-std-aux/nm-std-aux.h | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/libnm-std-aux/nm-std-aux.h b/src/libnm-std-aux/nm-std-aux.h
index 623a7c1e03..46d8f2025e 100644
--- a/src/libnm-std-aux/nm-std-aux.h
+++ b/src/libnm-std-aux/nm-std-aux.h
@@ -1302,13 +1302,15 @@ nm_ptr_to_uintptr(const void *p)
 
 /*****************************************************************************/
 
-#define NM_CMP_DIRECT(a, b)            \
-    do {                               \
-        typeof(a) _a = (a);            \
-        typeof(b) _b = (b);            \
-                                       \
-        if (_a != _b)                  \
-            return (_a < _b) ? -1 : 1; \
+#define NM_CMP_DIRECT(a, b)                               \
+    do {                                                  \
+        typeof(a) _a = (a);                               \
+        typeof(b) _b = (b);                               \
+                                                          \
+        G_STATIC_ASSERT(_NM_INT_SAME_SIGNEDNESS(_a, _b)); \
+                                                          \
+        if (_a != _b)                                     \
+            return (_a < _b) ? -1 : 1;                    \
     } while (0)
 
 #define NM_CMP_DIRECT_UNSAFE(a, b)                                                  \