treewide: introduce UID_INVALID (and friends) as macro for (uid_t) -1

[elogind.git] / src / shared / macro.h

diff --git a/src/shared/macro.h b/src/shared/macro.h
index 6d4712c30d779ac9889a605b1201f9ad18a5c0ec..9f5e4552b49ed16b2ae86723ad3f3bfdd7115f69 100644 (file)
--- a/src/shared/macro.h
+++ b/src/shared/macro.h
@@ -423,4 +423,8 @@ do {                                                                    \
 #endif
 #endif
 
+#define UID_INVALID ((uid_t) -1)
+#define GID_INVALID ((gid_t) -1)
+#define MODE_INVALID ((mode_t) -1)
+
 #include "log.h"