zig

fork of https://codeberg.org/ziglang/zig
Log | Files | Refs | README | LICENSE

bits.h (516B) - Raw

      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 /* bits.h: Macros for dealing with bitmasks.  */
      3 
      4 #ifndef _LINUX_BITS_H
      5 #define _LINUX_BITS_H
      6 
      7 #define __GENMASK(h, l) \
      8         (((~_UL(0)) - (_UL(1) << (l)) + 1) & \
      9          (~_UL(0) >> (__BITS_PER_LONG - 1 - (h))))
     10 
     11 #define __GENMASK_ULL(h, l) \
     12         (((~_ULL(0)) - (_ULL(1) << (l)) + 1) & \
     13          (~_ULL(0) >> (__BITS_PER_LONG_LONG - 1 - (h))))
     14 
     15 #define __GENMASK_U128(h, l) \
     16 	((_BIT128((h)) << 1) - (_BIT128(l)))
     17 
     18 #endif /* _LINUX_BITS_H */