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diff --git a/gl/tests/test-fadvise.c b/gl/tests/test-fadvise.c
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+/* Test that fadvise works as advertised.
+ Copyright (C) 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Pádraig Brady. */
+
+#include <config.h>
+#include <stdio.h>
+
+#include "fadvise.h"
+
+int
+main (void)
+{
+ /* Valid. */
+ fadvise (stdin, FADVISE_SEQUENTIAL);
+ fdadvise (fileno (stdin), 0, 0, FADVISE_RANDOM);
+
+ /* Ignored. */
+ fadvise (NULL, FADVISE_RANDOM);
+
+ /* Invalid. */
+ fdadvise (42, 0, 0, FADVISE_RANDOM);
+ /* Unfortunately C enums are not types.
+ One could hack type safety by wrapping in a struct,
+ but it's probably not worth the complexity in this case. */
+ fadvise (stdin, FADVISE_SEQUENTIAL + FADVISE_RANDOM);
+ fadvise (stdin, 4242);
+
+ return 0;
+}