Build aicasm as host program, not via world's compiler.
[dragonfly.git] / lib / libc / locale / tolower.c
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1/*-
2 * Copyright (c) 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Paul Borman at Krystal Technologies.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * $FreeBSD: src/lib/libc/locale/tolower.c,v 1.5.8.1 2000/06/04 21:47:39 ache Exp $
41e8adcb 37 * $DragonFly: src/lib/libc/locale/Attic/tolower.c,v 1.3 2003/11/09 02:34:01 dillon Exp $
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38 */
39
40#include <stdio.h>
41#include <rune.h>
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42#ifndef _SYS_STDINT_H_
43#include <sys/stdint.h>
44#endif
984263bc 45
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46__ct_rune_t
47___tolower(__ct_rune_t c)
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48{
49 int x;
50 _RuneRange *rr = &_CurrentRuneLocale->maplower_ext;
51 _RuneEntry *re = rr->ranges;
52
53 if (c < 0 || c == EOF)
54 return(c);
55
56 for (x = 0; x < rr->nranges; ++x, ++re) {
57 if (c < re->min)
58 return(c);
59 if (c <= re->max)
60 return(re->map + c - re->min);
61 }
62
63 return(c);
64}