Merge branch 'irq' into release
[linux-2.6.git] / include / linux / typecheck.h
1 #ifndef TYPECHECK_H_INCLUDED
2 #define TYPECHECK_H_INCLUDED
3
4 /*
5  * Check at compile time that something is of a particular type.
6  * Always evaluates to 1 so you may use it easily in comparisons.
7  */
8 #define typecheck(type,x) \
9 ({      type __dummy; \
10         typeof(x) __dummy2; \
11         (void)(&__dummy == &__dummy2); \
12         1; \
13 })
14
15 /*
16  * Check at compile time that 'function' is a certain type, or is a pointer
17  * to that type (needs to use typedef for the function type.)
18  */
19 #define typecheck_fn(type,function) \
20 ({      typeof(type) __tmp = function; \
21         (void)__tmp; \
22 })
23
24 #endif          /* TYPECHECK_H_INCLUDED */