stralloc/stralloc_cmp.c

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00001 // Copyright (C) 2005      Felix von Leitner <felix-libowfat@fefe.de>
00002 //               2006-2007 Benedikt Böhm <hollow@gentoo.org>
00003 //
00004 // This program is free software; you can redistribute it and/or
00005 // modify it under the terms of the GNU General Public License
00006 // as published by the Free Software Foundation; either version 2
00007 // of the License, or (at your option) any later version.
00008 //
00009 // This program is distributed in the hope that it will be useful,
00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 // GNU General Public License for more details.
00013 //
00014 // You should have received a copy of the GNU General Public License
00015 // along with this program; if not, write to the Free Software
00016 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
00017 
00018 #include "stralloc.h"
00019 
00020 int stralloc_cmp(const stralloc_t *a, const stralloc_t *b)
00021 {
00022         size_t i, j;
00023 
00024         for (i = 0;; ++i) {
00025                 if (i == a->len)
00026                         return i == b->len ? 0 : -1;
00027 
00028                 if (i == b->len)
00029                         return 1;
00030 
00031                 if ((j = ((unsigned char)(a->s[i]) - (unsigned char)(b->s[i]))))
00032                         return j;
00033         }
00034 
00035         return j;
00036 }

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