stdlib/dbl2mpn.c

   1 /* Copyright (C) 1993-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <gmp.h>
  19 #include "gmp-impl.h"
  20
  21 /* Convert a `double' to a multi-precision integer representing the
  22    significand scaled up by the highest possible number of significant bits
  23    of fraction (DBL_MANT_DIG), and an integral power of two (MPN frexp). */
  24
  25 mp_size_t
  26 __mpn_extract_double (mp_ptr res_ptr, mp_size_t size,
  27                       int *expt, int *is_neg,
  28                       double value)
  29 {
  30 #error "__mpn_extract_double is not implemented for this floating point format"
  31 }