102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
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/*=============================================================================
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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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Copyright (C) 2011 Sebastian Pancratz
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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_fits_si(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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flint_printf("fmpz_fits_si(x) = %d\n", fmpz_fits_si(x));
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flint_printf("WORD_MIN = %wd\n", WORD_MIN);
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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("fits_si....");
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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_si(x, WORD_MAX);
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check(x, 1);
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fmpz_set_si(x, WORD_MIN);
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check(x, 1);
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fmpz_set_ui(x, UWORD_MAX);
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check(x, 0);
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fmpz_set_ui(x, UWORD_MAX);
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fmpz_neg(x, x);
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check(x, 0);
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fmpz_set_si(x, WORD_MAX);
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fmpz_add_ui(x, x, 1);
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check(x, 0);
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fmpz_set_si(x, WORD_MIN);
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fmpz_sub_ui(x, x, 1);
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check(x, 0);
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for (i = 0; i < 1000; i++)
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{
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fmpz_set_ui(x, 1);
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fmpz_mul_2exp(x, x, i);
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check(x, i < FLINT_BITS - 1);
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fmpz_neg(x, x);
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check(x, i < FLINT_BITS); /* WORD_MIN fits */
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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 EXIT_SUCCESS;
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}
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