Mercurial > gnulib
view tests/test-count-trailing-zeros.c @ 40163:b89f4c441767
Avoid build errors due to wrong references between modules.
* lib/uninorm/canonical-decomposition.c: Include
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* lib/unicase/u32-ct-tolower.c: Likewise.
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"unicasemap.h", and "unicase/casefold.h", not "casefold.h".
* lib/unicase/u16-ct-casefold.c: Likewise.
* lib/unicase/u32-ct-casefold.c: Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 28 Jan 2019 01:20:11 +0100 |
parents | b06060465f09 |
children | 452ab00796c7 |
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/* Test counting of trailing zeros. Copyright (C) 2013-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* Written by Paul Eggert. */ #include <config.h> #include "count-trailing-zeros.h" #include <limits.h> #include <stdio.h> #include "macros.h" #define UINT_BIT (sizeof (unsigned int) * CHAR_BIT) #define ULONG_BIT (sizeof (unsigned long int) * CHAR_BIT) #define ULLONG_BIT (sizeof (unsigned long long int) * CHAR_BIT) int main (int argc, char *argv[]) { int i, j; #define TEST_COUNT_TRAILING_ZEROS(FUNC, TYPE, BITS, MAX, ONE) \ ASSERT (FUNC (0) == BITS); \ for (i = 0; i < BITS; i++) \ { \ ASSERT (FUNC (ONE << i) == i); \ for (j = 0; j < i; j++) \ ASSERT (FUNC ((ONE << i) | (ONE << j)) == j); \ } \ for (i = 0; i < 1000; i++) \ { \ TYPE value = rand () ^ (rand () << 31 << 1); \ int count = 0; \ for (j = BITS - 1; 0 <= j; j--) \ if (value & (ONE << j)) \ count = j; \ ASSERT (count == FUNC (value)); \ } \ ASSERT (FUNC (MAX) == 0); TEST_COUNT_TRAILING_ZEROS (count_trailing_zeros, unsigned int, UINT_BIT, UINT_MAX, 1U); TEST_COUNT_TRAILING_ZEROS (count_trailing_zeros_l, unsigned long int, ULONG_BIT, ULONG_MAX, 1UL); #ifdef HAVE_UNSIGNED_LONG_LONG_INT TEST_COUNT_TRAILING_ZEROS (count_trailing_zeros_ll, unsigned long long int, ULLONG_BIT, ULLONG_MAX, 1ULL); #endif return 0; }