1  /* Software floating-point emulation.
       2     Return (long double)(a)
       3     Copyright (C) 1997-2023 Free Software Foundation, Inc.
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public
       8     License as published by the Free Software Foundation; either
       9     version 2.1 of the License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library; if not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  #include "soft-fp.h"
      21  #include "double.h"
      22  #include "quad.h"
      23  
      24  long double _Q_dtoq(const double a)
      25  {
      26    FP_DECL_EX;
      27    FP_DECL_D(A);
      28    FP_DECL_Q(C);
      29    long double c;
      30  
      31    FP_INIT_ROUNDMODE;
      32    FP_UNPACK_RAW_D(A, a);
      33  #if _FP_W_TYPE_SIZE < 64
      34    FP_EXTEND(Q,D,4,2,C,A);
      35  #else
      36    FP_EXTEND(Q,D,2,1,C,A);
      37  #endif
      38    FP_PACK_RAW_Q(c, C);
      39    FP_HANDLE_EXCEPTIONS;
      40    return c;
      41  }