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https://github.com/vale981/arb
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60 lines
1.3 KiB
C
60 lines
1.3 KiB
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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slong
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fmpr_exp(fmpr_t y, const fmpr_t x, slong prec, fmpr_rnd_t rnd)
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{
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if (fmpr_is_special(x))
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{
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if (fmpr_is_zero(x))
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fmpr_one(y);
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else if (fmpr_is_pos_inf(x))
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fmpr_pos_inf(y);
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else if (fmpr_is_neg_inf(x))
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fmpr_zero(y);
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else
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fmpr_nan(y);
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return FMPR_RESULT_EXACT;
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}
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else
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{
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slong r;
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CALL_MPFR_FUNC(r, mpfr_exp, y, x, prec, rnd);
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return r;
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}
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}
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slong
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fmpr_expm1(fmpr_t y, const fmpr_t x, slong prec, fmpr_rnd_t rnd)
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{
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if (fmpr_is_special(x))
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{
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if (fmpr_is_zero(x))
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fmpr_zero(y);
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else if (fmpr_is_pos_inf(x))
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fmpr_pos_inf(y);
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else if (fmpr_is_neg_inf(x))
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fmpr_set_si(y, -WORD(1));
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else
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fmpr_nan(y);
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return FMPR_RESULT_EXACT;
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}
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else
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{
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slong r;
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CALL_MPFR_FUNC(r, mpfr_expm1, y, x, prec, rnd);
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return r;
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}
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}
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