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-rw-r--r--string/test-ffs.c54
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diff --git a/string/test-ffs.c b/string/test-ffs.c
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+/* Copyright (C) 1994 Free Software Foundation, Inc.
+ Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
+ On-Line Applications Research Corporation.
+
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+int
+DEFUN(main, (argc, argv),
+ int argc AND char **argv)
+{
+ int failures = 0;
+ int i;
+ void try (int value, int expected)
+ {
+ if (ffs (value) != expected)
+ {
+ fprintf (stderr, "%#x expected %d got %d\n",
+ value, expected, ffs (value));
+ ++failures;
+ }
+ }
+
+ try (0, 0);
+ for (i=0 ; i<32 ; i++)
+ try (1<<i, i+1);
+ try (0x80008000, 16);
+
+ if (failures)
+ printf ("Test FAILED! %d failure%s.\n", failures, &"s"[failures == 1]);
+ else
+ puts ("Test succeeded.");
+
+ exit (failures);
+}