Mercurial > gnulib
view lib/unistr/u32-cmp.c @ 40057:b06060465f09
maint: Run 'make update-copyright'
author | Paul Eggert <eggert@cs.ucla.edu> |
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date | Tue, 01 Jan 2019 00:25:11 +0100 |
parents | 10eb9086bea0 |
children |
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/* Compare pieces of UTF-32 strings. Copyright (C) 1999, 2002, 2006, 2009-2019 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2002. This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include "unistr.h" int u32_cmp (const uint32_t *s1, const uint32_t *s2, size_t n) { for (; n > 0;) { uint32_t uc1 = *s1++; uint32_t uc2 = *s2++; if (uc1 == uc2) { n--; continue; } /* Note that uc1 and uc2 each have at most 31 bits. */ return (int)uc1 - (int)uc2; /* > 0 if uc1 > uc2, < 0 if uc1 < uc2. */ } return 0; }