mirror of
https://github.com/vale981/arb
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74 lines
2 KiB
C
74 lines
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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long
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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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long
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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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