File: memcmp.c

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/* Public domain.  */
#include <stddef.h>

int
memcmp (const void *str1, const void *str2, size_t count)
{
  const unsigned char *s1 = str1;
  const unsigned char *s2 = str2;

  while (count-- > 0)
    {
      if (*s1++ != *s2++)
          return s1[-1] < s2[-1] ? -1 : 1;
    }
  return 0;
}