libgfortran/io/size_from_kind.c

   1 /* Copyright (C) 2005-2021 Free Software Foundation, Inc.
   2    Contributed by Janne Blomqvist
   3
   4 This file is part of the GNU Fortran runtime library (libgfortran).
   5
   6 Libgfortran is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 Libgfortran 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
  14 GNU General Public License for more details.
  15
  16 Under Section 7 of GPL version 3, you are granted additional
  17 permissions described in the GCC Runtime Library Exception, version
  18 3.1, as published by the Free Software Foundation.
  19
  20 You should have received a copy of the GNU General Public License and
  21 a copy of the GCC Runtime Library Exception along with this program;
  22 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 <http://www.gnu.org/licenses/>.  */
  24
  25
  26 /* This file contains utility functions for determining the size of a
  27    variable given its kind. */
  28
  29 #include "io.h"
  30
  31 size_t
  32 size_from_real_kind (int kind)
  33 {
  34   switch (kind)
  35     {
  36 #ifdef HAVE_GFC_REAL_4
  37     case 4:
  38       return sizeof (GFC_REAL_4);
  39 #endif
  40 #ifdef HAVE_GFC_REAL_8
  41     case 8:
  42       return sizeof (GFC_REAL_8);
  43 #endif
  44 #ifdef HAVE_GFC_REAL_10
  45     case 10:
  46       return sizeof (GFC_REAL_10);
  47 #endif
  48 #ifdef HAVE_GFC_REAL_16
  49     case 16:
  50       return sizeof (GFC_REAL_16);
  51 #endif
  52     default:
  53       return kind;
  54     }
  55 }
  56
  57
  58 size_t
  59 size_from_complex_kind (int kind)
  60 {
  61   switch (kind)
  62     {
  63 #ifdef HAVE_GFC_COMPLEX_4
  64     case 4:
  65       return sizeof (GFC_COMPLEX_4);
  66 #endif
  67 #ifdef HAVE_GFC_COMPLEX_8
  68     case 8:
  69       return sizeof (GFC_COMPLEX_8);
  70 #endif
  71 #ifdef HAVE_GFC_COMPLEX_10
  72     case 10:
  73       return sizeof (GFC_COMPLEX_10);
  74 #endif
  75 #ifdef HAVE_GFC_COMPLEX_16
  76     case 16:
  77       return sizeof (GFC_COMPLEX_16);
  78 #endif
  79     default:
  80       return 2 * kind;
  81     }
  82 }
  83