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 37#include <sys/cdefs.h>
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38__FBSDID("$FreeBSD: head/lib/libc/locale/tolower.c 129065 2004-05-09 13:04:49Z tjr $");
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38__FBSDID("$FreeBSD: head/lib/libc/locale/tolower.c 130961 2004-06-23 07:01:44Z tjr $"); |
39 40#include <stdio.h> 41#include <rune.h> 42 43__ct_rune_t 44___tolower(c) 45 __ct_rune_t c; 46{ 47 size_t lim;
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48 _RuneRange *rr = &_CurrentRuneLocale->maplower_ext;
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48 _RuneRange *rr = &_CurrentRuneLocale->__maplower_ext; |
49 _RuneEntry *base, *re; 50 51 if (c < 0 || c == EOF) 52 return(c); 53 54 /* Binary search -- see bsearch.c for explanation. */
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55 base = rr->ranges;
56 for (lim = rr->nranges; lim != 0; lim >>= 1) {
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55 base = rr->__ranges; 56 for (lim = rr->__nranges; lim != 0; lim >>= 1) { |
57 re = base + (lim >> 1);
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58 if (re->min <= c && c <= re->max)
59 return (re->map + c - re->min);
60 else if (c > re->max) {
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58 if (re->__min <= c && c <= re->__max) 59 return (re->__map + c - re->__min); 60 else if (c > re->__max) { |
61 base = re + 1; 62 lim--; 63 } 64 } 65 66 return(c); 67}
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