92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2009 William Hart
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******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <gmp.h>
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#include "flint.h"
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#include "ulong_extras.h"
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#include "fmpz.h"
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static void check(fmpz_t x, int expected)
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{
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if (fmpz_abs_fits_ui(x) != expected)
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{
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flint_printf("FAIL:\n\n");
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flint_printf("x = "), fmpz_print(x), flint_printf("\n");
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abort();
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}
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}
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int
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main(void)
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{
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slong i;
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fmpz_t x;
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FLINT_TEST_INIT(state);
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flint_printf("abs_fits_ui....");
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fflush(stdout);
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fmpz_init(x);
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fmpz_set_si(x, COEFF_MIN);
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check(x, 1);
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fmpz_set_si(x, COEFF_MAX);
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check(x, 1);
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fmpz_set_ui(x, UWORD_MAX);
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check(x, 1);
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fmpz_set_ui(x, UWORD_MAX);
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fmpz_neg(x, x);
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check(x, 1);
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fmpz_set_ui(x, UWORD_MAX);
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fmpz_add_ui(x, x, UWORD(1));
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check(x, 0);
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fmpz_neg(x, x);
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check(x, 0);
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for (i = 0; i < 100 * flint_test_multiplier(); i++)
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{
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fmpz_set_ui(x, UWORD(1));
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fmpz_mul_2exp(x, x, i);
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check(x, i < FLINT_BITS);
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fmpz_neg(x, x);
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check(x, i < FLINT_BITS);
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}
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fmpz_clear(x);
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FLINT_TEST_CLEANUP(state);
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flint_printf("PASS\n");
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return 0;
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}
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