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C/C++ Source or Header  |  2005-10-13  |  520b  |  21 lines
  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.