mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
141 lines
3.6 KiB
C
141 lines
3.6 KiB
C
/*=============================================================================
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This file is part of ARB.
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ARB 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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ARB 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 ARB; 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) 2012, 2014 Fredrik Johansson
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******************************************************************************/
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#include "arf.h"
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int main()
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{
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long iter;
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flint_rand_t state;
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printf("cmpabs....");
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fflush(stdout);
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flint_randinit(state);
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/* compare with fmpz */
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{
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arf_t x, y;
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fmpz_t X, Y;
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arf_init(x);
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arf_init(y);
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fmpz_init(X);
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fmpz_init(Y);
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for (iter = 0; iter < 100000; iter++)
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{
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int cmp1, cmp2;
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fmpz_randtest(X, state, 1 + n_randint(state, 1000));
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switch (n_randint(state, 8))
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{
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case 0:
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fmpz_neg(Y, X);
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break;
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case 1:
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fmpz_set(Y, X);
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break;
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default:
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fmpz_randtest(Y, state, 1 + n_randint(state, 1000));
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}
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arf_set_fmpz(x, X);
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arf_set_fmpz(y, Y);
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cmp1 = arf_cmpabs(x, y);
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cmp2 = fmpz_cmpabs(X, Y);
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cmp2 = (cmp2 > 0) - (cmp2 < 0);
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if (cmp1 != cmp2)
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{
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printf("FAIL\n\n");
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printf("x = "); arf_debug(x); printf("\n\n");
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printf("y = "); arf_debug(y); printf("\n\n");
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printf("X = "); fmpz_print(X); printf("\n\n");
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printf("Y = "); fmpz_print(Y); printf("\n\n");
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printf("cmp1 = %d, cmp2 = %d\n\n", cmp1, cmp2);
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abort();
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}
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}
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arf_clear(x);
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arf_clear(y);
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fmpz_clear(X);
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fmpz_clear(Y);
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}
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/* compare with mpfr */
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for (iter = 0; iter < 100000; iter++)
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{
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long bits;
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arf_t x, y;
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mpfr_t X, Y;
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int cmp1, cmp2;
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bits = 2 + n_randint(state, 200);
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arf_init(x);
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arf_init(y);
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mpfr_init2(X, bits);
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mpfr_init2(Y, bits);
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arf_randtest_special(x, state, bits, 10);
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arf_randtest_special(y, state, bits, 10);
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arf_get_mpfr(X, x, MPFR_RNDN);
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arf_get_mpfr(Y, y, MPFR_RNDN);
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mpfr_abs(X, X, MPFR_RNDN);
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mpfr_abs(Y, Y, MPFR_RNDN);
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cmp1 = arf_cmpabs(x, y);
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cmp2 = mpfr_cmp(X, Y);
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if (cmp1 != cmp2)
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{
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printf("FAIL\n\n");
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printf("x = "); arf_print(x); printf("\n\n");
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printf("y = "); arf_print(y); printf("\n\n");
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printf("cmp1 = %d, cmp2 = %d\n\n", cmp1, cmp2);
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abort();
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}
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arf_clear(x);
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arf_clear(y);
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mpfr_clear(X);
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mpfr_clear(Y);
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}
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flint_randclear(state);
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flint_cleanup();
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printf("PASS\n");
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return EXIT_SUCCESS;
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}
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