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 * 4. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: src/lib/libc/locale/toupper.c,v 1.13 2007/01/09 00:28:01 imp Exp $");
35
36#include "xlocale_private.h"
37
38#include <ctype.h>
39#include <stdio.h>
40#include <runetype.h>
41
42__ct_rune_t
43___toupper_l(c, loc)
44	__ct_rune_t c;
45	locale_t loc;
46{
47	size_t lim;
48	_RuneRange *rr;
49	_RuneEntry *base, *re;
50
51	if (c < 0 || c == EOF)
52		return(c);
53
54	NORMALIZE_LOCALE(loc);
55	/*
56	 * the following is not used by toupper(), but can be used by
57	 * toupper_l().  This provides the oppurtunity to optimize toupper()
58	 * when compatibility for Panther and lower is no longer needed
59	 */
60	if (c < _CACHED_RUNES)
61		return loc->__lc_ctype->_CurrentRuneLocale.__mapupper[c];
62	rr = &loc->__lc_ctype->_CurrentRuneLocale.__mapupper_ext;
63	/* Binary search -- see bsearch.c for explanation. */
64	base = rr->__ranges;
65	for (lim = rr->__nranges; lim != 0; lim >>= 1) {
66		re = base + (lim >> 1);
67		if (re->__min <= c && c <= re->__max)
68			return (re->__map + c - re->__min);
69		else if (c > re->__max) {
70			base = re + 1;
71			lim--;
72		}
73	}
74
75	return(c);
76}
77
78__ct_rune_t
79___toupper(c)
80	__ct_rune_t c;
81{
82	return ___toupper_l(c, __current_locale());
83}
84