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author | Bruno Haible <bruno@clisp.org> | 2009-03-07 12:57:11 +0100 |
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committer | Bruno Haible <bruno@clisp.org> | 2009-03-07 12:57:11 +0100 |
commit | ad6a23192f7f9d47aaaf9946a588bd87bf8cfa32 (patch) | |
tree | 98c6c80bbacdce0bc24a1f9d23ed43c5204c3b1a /lib/memcmp2.c | |
parent | 1bd08626c24664e17e9c8d77a3084adf5a119f3b (diff) | |
download | gnulib-ad6a23192f7f9d47aaaf9946a588bd87bf8cfa32.tar.gz |
New module 'memcmp2'.
Diffstat (limited to 'lib/memcmp2.c')
-rw-r--r-- | lib/memcmp2.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/memcmp2.c b/lib/memcmp2.c new file mode 100644 index 0000000000..7f8f6049f1 --- /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; +} |