From 780dbeef9f9d2c9f416da50a07bf0aacf3cc66c7 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 19 Nov 2013 01:10:22 +0100
Subject: macro: change assert_cc() so that it can appear outside of functions

---
 src/shared/macro.h | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

(limited to 'src/shared')

diff --git a/src/shared/macro.h b/src/shared/macro.h
index 9e94495dd6..37cdff1cb3 100644
--- a/src/shared/macro.h
+++ b/src/shared/macro.h
@@ -143,19 +143,9 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) {
         } while (false)
 
 #if defined(static_assert)
-#define assert_cc(expr)                         \
-        do {                                    \
-                static_assert(expr, #expr);     \
-        } while (false)
+#define assert_cc(expr) static_assert(expr, #expr)
 #else
-#define assert_cc(expr)                         \
-        do {                                    \
-                switch (0) {                    \
-                case 0:                         \
-                case !!(expr):                  \
-                        ;                       \
-                }                               \
-        } while (false)
+#define assert_cc(expr) struct _assert_struct_ ## __LINE__ { char x[(expr) ? 0 : -1]; }
 #endif
 
 #define assert_return(expr, r)                    \
-- 
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