114 lines
3.0 KiB
C
114 lines
3.0 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) 2011 Fredrik Johansson
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******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <gmp.h>
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#include "flint.h"
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#include "fmpz.h"
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#include "fmpq.h"
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int
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main(void)
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{
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int i;
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FLINT_TEST_INIT(state);
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flint_printf("canonicalise....");
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fflush(stdout);
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for (i = 0; i < 10000; i++)
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{
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fmpq_t x;
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fmpz_t mult;
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fmpq_init(x);
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fmpq_randtest(x, state, 200);
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if (!fmpq_is_canonical(x))
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{
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flint_printf("FAIL: expected fmpq_randtest output to be canonical\n");
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fmpq_print(x);
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flint_printf("\n");
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abort();
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}
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fmpz_init(mult);
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fmpz_randtest_not_zero(mult, state, 200);
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fmpz_add_ui(mult, mult, UWORD(1));
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fmpz_mul(&x->num, &x->num, mult);
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fmpz_mul(&x->den, &x->den, mult);
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if (fmpq_is_canonical(x))
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{
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flint_printf("FAIL: expected fmpq_is_canonical to detect common factor\n");
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fmpq_print(x);
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flint_printf("\n");
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abort();
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}
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fmpq_canonicalise(x);
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if (!fmpq_is_canonical(x))
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{
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flint_printf("FAIL: result not canonical after calling fmpq_canonicalise\n");
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fmpq_print(x);
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flint_printf("\n");
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abort();
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}
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fmpz_neg(&x->den, &x->den);
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if (fmpq_is_canonical(x))
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{
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flint_printf("FAIL: negative denominator reported as being canonical\n");
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fmpq_print(x);
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flint_printf("\n");
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abort();
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}
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fmpq_canonicalise(x);
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if (!fmpq_is_canonical(x))
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{
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flint_printf("FAIL: result not canonical after calling fmpq_canonicalise\n");
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fmpq_print(x);
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flint_printf("\n");
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abort();
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}
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fmpz_clear(mult);
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fmpq_clear(x);
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}
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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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