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-rw-r--r--test/string/test-ffs.c66
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diff --git a/test/string/test-ffs.c b/test/string/test-ffs.c
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+/* Copyright (C) 1994, 1997, 2000, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
+ On-Line Applications Research Corporation.
+
+ The GNU C Library 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.
+
+ 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+int
+main (void)
+{
+ int failures = 0;
+ int i;
+
+ auto void try (const char *name, long long int param, int value,
+ int expected);
+
+ void try (const char *name, long long int param, int value, int expected)
+ {
+ if (value != expected)
+ {
+ printf ("%s(%#llx) expected %d got %d\n",
+ name, param, expected, value);
+ ++failures;
+ }
+ else
+ printf ("%s(%#llx) as expected %d\n", name, param, value);
+ }
+
+#define TEST(fct, type) \
+ try (#fct, 0, fct ((type) 0), 0); \
+ for (i=0 ; i < 8 * sizeof (type); i++) \
+ try (#fct, 1ll << i, fct (((type) 1) << i), i + 1); \
+ for (i=0 ; i < 8 * sizeof (type) ; i++) \
+ try (#fct, (~((type) 0) >> i) << i, fct ((~((type) 0) >> i) << i), i + 1);\
+ try (#fct, 0x80008000, fct ((type) 0x80008000), 16)
+
+ TEST (ffs, int);
+/* Not implemented in uClibc (yet?)
+ TEST (ffsl, long int);
+ TEST (ffsll, long long int);
+*/
+
+ if (failures)
+ printf ("Test FAILED! %d failure%s.\n", failures, &"s"[failures == 1]);
+ else
+ puts ("Test succeeded.");
+
+ return failures;
+}