* Makerules (elfobjdir): Use $(objdir) if set, even in elf subdir.
[glibc.git] / string / test-ffs.c
blobef401715510e40f9711ffe9bd490dec515020afc
1 /* Copyright (C) 1994 Free Software Foundation, Inc.
2 Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
3 On-Line Applications Research Corporation.
5 This file is part of the GNU C Library.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public License as
9 published by the Free Software Foundation; either version 2 of the
10 License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public
18 License along with the GNU C Library; see the file COPYING.LIB. If
19 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
20 Cambridge, MA 02139, USA. */
22 #include <ansidecl.h>
23 #include <stdlib.h>
24 #include <stdio.h>
25 #include <string.h>
27 int
28 DEFUN(main, (argc, argv),
29 int argc AND char **argv)
31 int failures = 0;
32 int i;
33 void try (int value, int expected)
35 if (ffs (value) != expected)
37 fprintf (stderr, "%#x expected %d got %d\n",
38 value, expected, ffs (value));
39 ++failures;
43 try (0, 0);
44 for (i=0 ; i<32 ; i++)
45 try (1<<i, i+1);
46 for (i=0 ; i<32 ; i++)
47 try ((~0 >> i) << i, i+1);
48 try (0x80008000, 16);
50 if (failures)
51 printf ("Test FAILED! %d failure%s.\n", failures, &"s"[failures == 1]);
52 else
53 puts ("Test succeeded.");
55 exit (failures);