1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5 *                      and is licensed under the                       *
6 *                 Eclipse Public License, Version 1.0                  *
7 *                    by AT&T Intellectual Property                     *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *          http://www.eclipse.org/org/documents/epl-v10.html           *
11 *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12 *                                                                      *
13 *              Information and Software Systems Research               *
14 *                            AT&T Research                             *
15 *                           Florham Park NJ                            *
16 *                                                                      *
17 *                 Glenn Fowler <gsf@research.att.com>                  *
18 *                  David Korn <dgk@research.att.com>                   *
19 *                   Phong Vo <kpv@research.att.com>                    *
20 *                                                                      *
21 ***********************************************************************/
22 #pragma prototyped
23 
24 /*
25  * ccmapchr(ccmap(CC_NATIVE,CC_ASCII),c) and strcmp
26  */
27 
28 #include <ast.h>
29 #include <ccode.h>
30 
31 #if _lib_stracmp
32 
33 NoN(stracmp)
34 
35 #else
36 
37 #include <ctype.h>
38 
39 int
40 stracmp(const char* aa, const char* ab)
41 {
42 	register unsigned char*	a;
43 	register unsigned char*	b;
44 	register unsigned char*	m;
45 	register int		c;
46 	register int		d;
47 
48 	if (!(m = ccmap(CC_NATIVE, CC_ASCII)))
49 		return strcmp(aa, ab);
50 	a = (unsigned char*)aa;
51 	b = (unsigned char*)ab;
52 	for (;;)
53 	{
54 		c = m[*a++];
55 		if (d = c - m[*b++])
56 			return d;
57 		if (!c)
58 			return 0;
59 	}
60 }
61 
62 #endif
63