mirror of
https://github.com/vale981/arb
synced 2025-03-05 09:21:38 -05:00
66 lines
2.2 KiB
C
66 lines
2.2 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 Fredrik Johansson
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******************************************************************************/
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#include "fmpr.h"
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void
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fmpr_randtest(fmpr_t x, flint_rand_t state, slong bits, slong mag_bits)
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{
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fmpz_randtest(fmpr_manref(x), state, bits);
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fmpz_randtest(fmpr_expref(x), state, mag_bits);
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fmpz_sub_ui(fmpr_expref(x), fmpr_expref(x), fmpz_bits(fmpr_manref(x)));
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_fmpr_normalise(fmpr_manref(x), fmpr_expref(x), bits, FMPR_RND_DOWN);
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}
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void
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fmpr_randtest_not_zero(fmpr_t x, flint_rand_t state, slong bits, slong mag_bits)
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{
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fmpz_randtest_not_zero(fmpr_manref(x), state, bits);
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fmpz_randtest(fmpr_expref(x), state, mag_bits);
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fmpz_sub_ui(fmpr_expref(x), fmpr_expref(x), fmpz_bits(fmpr_manref(x)));
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_fmpr_normalise(fmpr_manref(x), fmpr_expref(x), bits, FMPR_RND_DOWN);
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}
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void
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fmpr_randtest_special(fmpr_t x, flint_rand_t state, slong bits, slong mag_bits)
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{
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switch (n_randint(state, 32))
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{
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case 0:
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fmpr_zero(x);
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break;
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case 1:
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fmpr_pos_inf(x);
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break;
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case 2:
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fmpr_neg_inf(x);
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break;
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case 3:
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fmpr_nan(x);
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break;
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default:
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fmpr_randtest_not_zero(x, state, bits, mag_bits);
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}
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}
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