linux/include/asm-generic/swab.h
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   1#ifndef _ASM_GENERIC_SWAB_H
   2#define _ASM_GENERIC_SWAB_H
   3
   4#include <asm/bitsperlong.h>
   5
   6/*
   7 * 32 bit architectures typically (but not always) want to
   8 * set __SWAB_64_THRU_32__. In user space, this is only
   9 * valid if the compiler supports 64 bit data types.
  10 */
  11
  12#if __BITS_PER_LONG == 32
  13#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
  14#define __SWAB_64_THRU_32__
  15#endif
  16#endif
  17
  18#endif /* _ASM_GENERIC_SWAB_H */
  19
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