tree-wide: make ++/-- usage consistent WRT spacing

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

diff --git a/src/basic/macro.h b/src/basic/macro.h
index c529c6ecade118cd4a83552251930f28febd1d28..ab5cc97e17ac386a9031c0f61053e699fd2f5a1e 100644 (file)
--- a/src/basic/macro.h
+++ b/src/basic/macro.h
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 #pragma once
 
 /***
@@ -363,6 +361,12 @@ static inline unsigned long ALIGN_POWER2(unsigned long u) {
                 _found;                         \
         })
 
+#define SWAP_TWO(x, y) do {                        \
+                typeof(x) _t = (x);                \
+                (x) = (y);                         \
+                (y) = (_t);                        \
+        } while (false)
+
 /* Define C11 thread_local attribute even on older gcc compiler
  * version */
 #ifndef thread_local