mirror of
https://github.com/vale981/arb
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35 lines
932 B
C
35 lines
932 B
C
/*
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Copyright (C) 2014 Fredrik Johansson
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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 it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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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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