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-rw-r--r--lib/memcmp2.c31
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diff --git a/lib/memcmp2.c b/lib/memcmp2.c
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+/* Compare two memory areas with possibly different lengths.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+
+ This file 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 2.1 of the
+ License, or (at your option) any later version.
+
+ This file 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 "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)
+ cmp = _GL_CMP (n1, n2);
+ return cmp;
+}