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- /* memcmp -- compare two memory regions.
- This function is in the public domain. */
-
- /*
- NAME
- memcmp -- compare two memory regions
-
- SYNOPSIS
- int memcmp (const void *from, const void *to, size_t count)
-
- DESCRIPTION
- Compare two memory regions and return less than,
- equal to, or greater than zero, according to lexicographical
- ordering of the compared regions.
- */
-
- #include <ansidecl.h>
- #ifdef __STDC__
- #include <stddef.h>
- #else
- #define size_t unsigned long
- #endif
-
- int
- DEFUN(memcmp, (str1, str2, count),
- const PTR str1 AND const PTR str2 AND size_t count)
- {
- register unsigned char *s1 = (unsigned char*)str1;
- register unsigned char *s2 = (unsigned char*)str2;
-
- while (count-- > 0)
- {
- if (*s1++ != *s2++)
- return s1[-1] < s2[-1] ? -1 : 1;
- }
- return 0;
- }
-
-