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Linux Cross Reference
Linux/include/asm-generic/unaligned.h

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~ 
  1 #ifndef _ASM_GENERIC_UNALIGNED_H_
  2 #define _ASM_GENERIC_UNALIGNED_H_
  3 
  4 /*
  5  * For the benefit of those who are trying to port Linux to another
  6  * architecture, here are some C-language equivalents. 
  7  */
  8 
  9 #include <asm/string.h>
 10 
 11 
 12 #define get_unaligned(ptr) \
 13   ({ __typeof__(*(ptr)) __tmp; memcpy(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
 14 
 15 #define put_unaligned(val, ptr)                         \
 16   ({ __typeof__(*(ptr)) __tmp = (val);                  \
 17      memcpy((ptr), &__tmp, sizeof(*(ptr)));             \
 18      (void)0; })
 19 
 20 #endif /* _ASM_GENERIC_UNALIGNED_H */
 21
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