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| author | Sami Kerola | 2014-09-28 21:51:43 +0200 |
|---|---|---|
| committer | Karel Zak | 2014-10-01 12:33:35 +0200 |
| commit | 2a0d2a8e11adfde412a8b70c4fdafa607e84c670 (patch) | |
| tree | ca6385b00c35463c137b889b8c531eb9c4e7d35d /include/c.h | |
| parent | libuuid: remove _SVID_SOURCE pre-processor definition (diff) | |
| download | kernel-qcow2-util-linux-2a0d2a8e11adfde412a8b70c4fdafa607e84c670.tar.gz kernel-qcow2-util-linux-2a0d2a8e11adfde412a8b70c4fdafa607e84c670.tar.xz kernel-qcow2-util-linux-2a0d2a8e11adfde412a8b70c4fdafa607e84c670.zip | |
include: fix compiler warnings
This change has motivation to make -Wall -pedantic compiler options to
spit a little bit less noise, which with luck will increase change to
notice real issues.
Multiple of these:
warning: ISO C forbids braced-groups within expressions [-Wpedantic]
And nearly 300 times reported:
include/c.h:75:41: warning: struct has no named members [-Wpedantic]
#define UL_BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Diffstat (limited to 'include/c.h')
| -rw-r--r-- | include/c.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/c.h b/include/c.h index e423e8b30..0f6e5b29b 100644 --- a/include/c.h +++ b/include/c.h @@ -37,7 +37,7 @@ # define __must_be_array(a) \ UL_BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(__typeof__(a), __typeof__(&a[0]))) -# define ignore_result(x) ({ \ +# define ignore_result(x) __extension__ ({ \ __typeof__(x) __dummy __attribute__((__unused__)) = (x); (void) __dummy; \ }) @@ -72,7 +72,7 @@ * e.g. in a structure initializer (or wherever else comma expressions * aren't permitted). */ -#define UL_BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) +#define UL_BUILD_BUG_ON_ZERO(e) __extension__ (sizeof(struct { int:-!!(e); })) #define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); })) #ifndef ARRAY_SIZE @@ -92,7 +92,7 @@ #endif #ifndef min -# define min(x, y) ({ \ +# define min(x, y) __extension__ ({ \ __typeof__(x) _min1 = (x); \ __typeof__(y) _min2 = (y); \ (void) (&_min1 == &_min2); \ @@ -100,7 +100,7 @@ #endif #ifndef max -# define max(x, y) ({ \ +# define max(x, y) __extension__ ({ \ __typeof__(x) _max1 = (x); \ __typeof__(y) _max2 = (y); \ (void) (&_max1 == &_max2); \ @@ -112,7 +112,7 @@ #endif #ifndef container_of -#define container_of(ptr, type, member) ({ \ +#define container_of(ptr, type, member) __extension__ ({ \ const __typeof__( ((type *)0)->member ) *__mptr = (ptr); \ (type *)( (char *)__mptr - offsetof(type,member) );}) #endif |