1  /* mpfr_set_sj -- set a MPFR number from a huge machine signed integer
       2  
       3  Copyright 2004-2023 Free Software Foundation, Inc.
       4  Contributed by the AriC and Caramba projects, INRIA.
       5  
       6  This file is part of the GNU MPFR Library.
       7  
       8  The GNU MPFR Library is free software; you can redistribute it and/or modify
       9  it under the terms of the GNU Lesser General Public License as published by
      10  the Free Software Foundation; either version 3 of the License, or (at your
      11  option) any later version.
      12  
      13  The GNU MPFR Library is distributed in the hope that it will be useful, but
      14  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
      15  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
      16  License for more details.
      17  
      18  You should have received a copy of the GNU Lesser General Public License
      19  along with the GNU MPFR Library; see the file COPYING.LESSER.  If not, see
      20  https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
      21  51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
      22  
      23  #define MPFR_NEED_INTMAX_H
      24  #include "mpfr-impl.h"
      25  
      26  #ifdef _MPFR_H_HAVE_INTMAX_T
      27  
      28  int
      29  mpfr_set_sj (mpfr_ptr x, intmax_t j, mpfr_rnd_t rnd)
      30  {
      31    return mpfr_set_sj_2exp (x, j, 0, rnd);
      32  }
      33  
      34  int
      35  mpfr_set_sj_2exp (mpfr_ptr x, intmax_t j, intmax_t e, mpfr_rnd_t rnd)
      36  {
      37    if (j >= 0)
      38      return mpfr_set_uj_2exp (x, j, e, rnd);
      39    else
      40      {
      41        int inex;
      42        inex = mpfr_set_uj_2exp (x, - (uintmax_t) j, e, MPFR_INVERT_RND (rnd));
      43        MPFR_CHANGE_SIGN (x);
      44        return -inex;
      45      }
      46  }
      47  
      48  #endif