summaryrefslogblamecommitdiff
path: root/include/linux/typecheck.h
blob: 20d310331eb51148cb0e6d21d7c693d1e11315a9 (plain) (tree) 
b24413180f56 ^

e0deaff47090 ^
























1

2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

                                      























                                                                           
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef TYPECHECK_H_INCLUDED
#define TYPECHECK_H_INCLUDED

/*
 * Check at compile time that something is of a particular type.
 * Always evaluates to 1 so you may use it easily in comparisons.
 */
#define typecheck(type,x) \
({	type __dummy; \
	typeof(x) __dummy2; \
	(void)(&__dummy == &__dummy2); \
	1; \
})

/*
 * Check at compile time that 'function' is a certain type, or is a pointer
 * to that type (needs to use typedef for the function type.)
 */
#define typecheck_fn(type,function) \
({	typeof(type) __tmp = function; \
	(void)__tmp; \
})

#endif		/* TYPECHECK_H_INCLUDED */