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01: /* const.h: Macros for dealing with constants.  */
02: 
03: #ifndef _LINUX_CONST_H
04: #define _LINUX_CONST_H
05: 
06: /* Some constant macros are used in both assembler and
07:  * C code.  Therefore we cannot annotate them always with
08:  * 'UL' and other type specifiers unilaterally.  We
09:  * use the following macros to deal with this.
10:  *
11:  * Similarly, _AT() will cast an expression with a type in C, but
12:  * leave it unchanged in asm.
13:  */
14: 
15: #ifdef __ASSEMBLY__
16: #define _AC(X,Y)        X
17: #define _AT(T,X)        X
18: #else
19: #define __AC(X,Y)       (X##Y)
20: #define _AC(X,Y)        __AC(X,Y)
21: #define _AT(T,X)        ((T)(X))
22: #endif
23: 
24: #endif /* !(_LINUX_CONST_H) */
25: 

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