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78 lines
2.0 KiB
78 lines
2.0 KiB
4 years ago
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/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
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NOTE: The canonical source of this file is maintained with the GNU C Library.
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Bugs can be reported to bug-glibc@prep.ai.mit.edu.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <ctype.h>
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#include <string.h>
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#ifndef weak_alias
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# define __strcasecmp strcasecmp
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# define TOLOWER(Ch) tolower (Ch)
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#else
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# ifdef USE_IN_EXTENDED_LOCALE_MODEL
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# define __strcasecmp __strcasecmp_l
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# define TOLOWER(Ch) __tolower_l ((Ch), loc)
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# else
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# define TOLOWER(Ch) tolower (Ch)
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# endif
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#endif
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#ifdef USE_IN_EXTENDED_LOCALE_MODEL
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# define LOCALE_PARAM , loc
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# define LOCALE_PARAM_DECL __locale_t loc;
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#else
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# define LOCALE_PARAM
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# define LOCALE_PARAM_DECL
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#endif
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/* Compare S1 and S2, ignoring case, returning less than, equal to or
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greater than zero if S1 is lexicographically less than,
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equal to or greater than S2. */
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int
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__strcasecmp (s1, s2 LOCALE_PARAM)
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const char *s1;
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const char *s2;
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LOCALE_PARAM_DECL
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{
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const unsigned char *p1 = (const unsigned char *) s1;
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const unsigned char *p2 = (const unsigned char *) s2;
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unsigned char c1, c2;
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if (p1 == p2)
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return 0;
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do
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{
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c1 = TOLOWER (*p1++);
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c2 = TOLOWER (*p2++);
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if (c1 == '\0')
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break;
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}
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while (c1 == c2);
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return c1 - c2;
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}
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#ifndef __strcasecmp
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weak_alias (__strcasecmp, strcasecmp)
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#endif
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