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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/uapi/linux/const.h
1 /* const.h: Macros for dealing with constants. */
6 /* Some constant macros are used in both assembler and
7 * C code. Therefore we cannot annotate them always with
8 * 'UL' and other type specifiers unilaterally. We
9 * use the following macros to deal with this.
11 * Similarly, _AT() will cast an expression with a type in C, but
12 * leave it unchanged in asm.
19 #define __AC(X,Y) (X##Y)
20 #define _AC(X,Y) __AC(X,Y)
21 #define _AT(T,X) ((T)(X))
24 #define _BITUL(x) (_AC(1,UL) << (x))
25 #define _BITULL(x) (_AC(1,ULL) << (x))
27 #endif /* !(_LINUX_CONST_H) */