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Diffstat (limited to 'test/string/test-ffs.c')
-rw-r--r-- | test/string/test-ffs.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/test/string/test-ffs.c b/test/string/test-ffs.c new file mode 100644 index 000000000..86e11758d --- /dev/null +++ b/test/string/test-ffs.c @@ -0,0 +1,66 @@ +/* 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; +} |