mirror of
https://github.com/vale981/arb
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51 lines
1.6 KiB
C
51 lines
1.6 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) 2014 Fredrik Johansson
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******************************************************************************/
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#include "arf.h"
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void
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arf_set_mpfr(arf_t x, const mpfr_t y)
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{
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if (!mpfr_regular_p(y))
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{
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if (mpfr_zero_p(y))
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arf_zero(x);
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else if (mpfr_inf_p(y) && mpfr_sgn(y) > 0)
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arf_pos_inf(x);
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else if (mpfr_inf_p(y) && mpfr_sgn(y) < 0)
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arf_neg_inf(x);
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else
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arf_nan(x);
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}
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else
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{
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mp_size_t n = (y->_mpfr_prec + FLINT_BITS - 1) / FLINT_BITS;
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arf_set_mpn(x, y->_mpfr_d, n, y->_mpfr_sign < 0);
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fmpz_set_si(ARF_EXPREF(x), y->_mpfr_exp);
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}
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}
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