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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [libiberty/] [bcopy.c] - Rev 841

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/* bcopy -- copy memory regions of arbitary length
 
@deftypefn Supplemental void bcopy (char *@var{in}, char *@var{out}, int @var{length})
 
Copies @var{length} bytes from memory region @var{in} to region
@var{out}.  The use of @code{bcopy} is deprecated in new programs.
 
@end deftypefn
 
*/
 
#include <stddef.h>
 
void
bcopy (const void *src, void *dest, size_t len)
{
  if (dest < src)
    {
      const char *firsts = src;
      char *firstd = dest;
      while (len--)
	*firstd++ = *firsts++;
    }
  else
    {
      const char *lasts = (const char *)src + (len-1);
      char *lastd = (char *)dest + (len-1);
      while (len--)
        *lastd-- = *lasts--;
    }
}
 

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