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| author | Lennart Poettering <lennart@poettering.net> | 2014-02-20 18:05:56 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2014-02-20 18:07:01 +0100 |
| commit | 7ebe131a9f37fe5a3a15f69962d21cb7e063dff8 (patch) | |
| tree | fe05e3fc945aea6050dbb2f2862f041e51f4d049 /src/shared/macro.h | |
| parent | 748db5928c573fd699cd88f32fe21a456fa46d3e (diff) | |
util: get rid of warnings around assert_cc() macro
Suggested by Holger Schurig.
Diffstat (limited to 'src/shared/macro.h')
| -rw-r--r-- | src/shared/macro.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/src/shared/macro.h b/src/shared/macro.h index dfbc20142f..959a9f7fb1 100644 --- a/src/shared/macro.h +++ b/src/shared/macro.h @@ -46,6 +46,14 @@ #define _alignas_(x) __attribute__((aligned(__alignof(x)))) #define _cleanup_(x) __attribute__((cleanup(x))) +/* Temporarily disable some warnings */ +#define DISABLE_WARNING_DECLARATION_AFTER_STATEMENT \ + _Pragma("GCC diagnostic push"); \ + _Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") + +#define REENABLE_WARNING \ + _Pragma("GCC diagnostic pop") + /* automake test harness */ #define EXIT_TEST_SKIP 77 @@ -154,9 +162,20 @@ static inline size_t ALIGN_TO(size_t l, size_t ali) { } while (false) #if defined(static_assert) -#define assert_cc(expr) static_assert(expr, #expr) +/* static_assert() is sometimes defined in a way that trips up + * -Wdeclaration-after-statement, hence let's temporarily turn off + * this warning around it. */ +#define assert_cc(expr) \ + DISABLE_WARNING_DECLARATION_AFTER_STATEMENT; \ + static_assert(expr, #expr); \ + REENABLE_WARNING #else -#define assert_cc(expr) struct UNIQUE(_assert_struct_) { char x[(expr) ? 0 : -1]; }; +#define assert_cc(expr) \ + DISABLE_WARNING_DECLARATION_AFTER_STATEMENT; \ + struct UNIQUE(_assert_struct_) { \ + char x[(expr) ? 0 : -1]; \ + }; \ + REENABLE_WARNING #endif #define assert_return(expr, r) \ |