1 /* Copyright (C) 1994, 1997, 2000, 2004 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
4 On-Line Applications Research Corporation.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
19
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <string.h>
23
24 int
main(void)25 main (void)
26 {
27 int failures = 0;
28 int i;
29
30 auto void try (const char *name, long long int param, int value,
31 int expected);
32
33 void try (const char *name, long long int param, int value, int expected)
34 {
35 if (value != expected)
36 {
37 printf ("%s(%#llx) expected %d got %d\n",
38 name, param, expected, value);
39 ++failures;
40 }
41 else
42 printf ("%s(%#llx) as expected %d\n", name, param, value);
43 }
44
45 #define TEST(fct, type) \
46 try (#fct, 0, fct ((type) 0), 0); \
47 for (i=0 ; i < 8 * sizeof (type); i++) \
48 try (#fct, 1ll << i, fct (((type) 1) << i), i + 1); \
49 for (i=0 ; i < 8 * sizeof (type) ; i++) \
50 try (#fct, (~((type) 0) >> i) << i, fct ((~((type) 0) >> i) << i), i + 1);\
51 try (#fct, 0x80008000, fct ((type) 0x80008000), 16)
52
53 TEST (ffs, int);
54 /* Not implemented in uClibc (yet?)
55 TEST (ffsl, long int);
56 TEST (ffsll, long long int);
57 */
58
59 if (failures)
60 printf ("Test FAILED! %d failure%s.\n", failures, &"s"[failures == 1]);
61 else
62 puts ("Test succeeded.");
63
64 return failures;
65 }
66