Mercurial > hg > octave-lyh > gnulib-hg
changeset 11282:61dfd8dc1a13
New module 'memcmp2'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 07 Mar 2009 12:57:11 +0100 |
parents | c4c11ef90aa0 |
children | 1ca1fb00ca36 |
files | ChangeLog lib/memcmp2.c lib/memcmp2.h modules/memcmp2 |
diffstat | 4 files changed, 104 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2009-03-07 Bruno Haible <bruno@clisp.org> + + New module 'memcmp2'. + * lib/memcmp2.h: New file. + * lib/memcmp2.c: New file. + * modules/memcmp2: New file. + 2009-03-07 Bruno Haible <bruno@clisp.org> Tests for module 'uninorm/decomposing-form'.
new file mode 100644 --- /dev/null +++ b/lib/memcmp2.c @@ -0,0 +1,36 @@ +/* Compare two memory areas with possibly different lengths. + Copyright (C) 2009 Free Software Foundation, Inc. + + 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 <http://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include "memcmp2.h" + +#include <string.h> + +int +memcmp2 (const char *s1, size_t n1, const char *s2, size_t n2) +{ + int cmp = memcmp (s1, s2, n1 <= n2 ? n1 : n2); + if (cmp == 0) + { + if (n1 < n2) + cmp = -1; + else if (n1 > n2) + cmp = 1; + } + return cmp; +}
new file mode 100644 --- /dev/null +++ b/lib/memcmp2.h @@ -0,0 +1,39 @@ +/* Compare two memory areas with possibly different lengths. + Copyright (C) 2009 Free Software Foundation, Inc. + + 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 <http://www.gnu.org/licenses/>. */ + +#ifndef MEMCMP2_H +#define MEMCMP2_H + +#include <stddef.h> + +#ifdef __cplusplus +extern "C" { +#endif + + +/* Compare the memory regions S1 = [s1..s1+N1-1], S2 = [s2..s2+n2-1], + alphabetically. + This function's result is locale independent, unlike memcoll()'s. + Return a negative number if S1 < S2, a positive number if S1 > S2, or + 0 if S1 and S2 have the same contents. */ +extern int memcmp2 (const char *s1, size_t n1, const char *s2, size_t n2); + + +#ifdef __cplusplus +} +#endif + +#endif /* MEMCMP2_H */
new file mode 100644 --- /dev/null +++ b/modules/memcmp2 @@ -0,0 +1,22 @@ +Description: +Compare two memory areas with possibly different lengths. + +Files: +lib/memcmp2.h +lib/memcmp2.c + +Depends-on: + +configure.ac: + +Makefile.am: +lib_SOURCES += memcmp2.c + +Include: +"memcmp2.h" + +License: +LGPL + +Maintainer: +Bruno Haible