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include/linux/const.h
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/* const.h: Macros for dealing with constants. */ |
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#ifndef _LINUX_CONST_H #define _LINUX_CONST_H |
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/* Some constant macros are used in both assembler and * C code. Therefore we cannot annotate them always with |
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* 'UL' and other type specifiers unilaterally. We |
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* use the following macros to deal with this. |
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* * Similarly, _AT() will cast an expression with a type in C, but * leave it unchanged in asm. |
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*/ #ifdef __ASSEMBLY__ #define _AC(X,Y) X |
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#define _AT(T,X) X |
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#else #define __AC(X,Y) (X##Y) #define _AC(X,Y) __AC(X,Y) |
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#define _AT(T,X) ((T)(X)) |
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#endif |
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#endif /* !(_LINUX_CONST_H) */ |