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37 lines
769 B
C
37 lines
769 B
C
/*
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Copyright (C) 2012 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 "fmpr.h"
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double
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fmpr_get_d(const fmpr_t x, fmpr_rnd_t rnd)
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{
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double r;
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mpfr_rnd_t mrnd;
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mpfr_t t;
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mp_limb_t tmp[2];
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if (fmpr_is_zero(x))
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return 0.0;
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mrnd = rnd_to_mpfr(rnd);
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t->_mpfr_prec = 53;
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t->_mpfr_sign = 1;
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t->_mpfr_exp = 0;
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t->_mpfr_d = tmp;
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fmpr_get_mpfr(t, x, mrnd);
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r = mpfr_get_d(t, mrnd);
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return r;
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}
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