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/*
* Mach Operating System
* Copyright (c) 1992,1991,1990,1989 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* File: limach/strcmp.c
* Author: Robert V. Baron at Carnegie Mellon
* Date: Oct 13, 1992
* Abstract:
* strcmp (s1, s2) compares the strings "s1" and "s2".
* It returns 0 if the strings are identical. It returns
* > 0 if the first character that differs into two strings
* is larger in s1 than in s2 or if s1 is longer than s2 and
* the contents are identical up to the length of s2.
* It returns < 0 if the first differing character is smaller
* in s1 than in s2 or if s1 is shorter than s2 and the
* contents are identical upto the length of s1.
*/
int
strcmp(s1,s2)
register unsigned char *s1, *s2;
{
register unsigned int a, b;
while ( (a = *s1++), (b = *s2++), a && b) {
if (a != b)
return (a-b);
}
return a-b;
}
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