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Use gcc void* arithmetic to avoid cast warning

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Nils O. Selåsdal
2012-12-18 20:06:40 +01:00
parent 690b6ba18a
commit 0782e2f825
1 changed files with 1 additions and 1 deletions
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include/ucore/ucore_utils.h
+1 -1
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@@ -47,7 +47,7 @@
//struct foo *f = CONTAINER_OF(p, struct foo, zap); //struct foo *f = CONTAINER_OF(p, struct foo, zap);
#define CONTAINER_OF(ptr, type, member) ({ \ #define CONTAINER_OF(ptr, type, member) ({ \
typeof( ((type *)0)->member ) *__mptr = (ptr); \ typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type, member) ); }) (type *)( (void *)__mptr - offsetof(type, member) ); })
#define UC_ALIGN(val,align) (((val)+(align)-1UL)&~((align)-1UL)) #define UC_ALIGN(val,align) (((val)+(align)-1UL)&~((align)-1UL))