libgfortran/intrinsics/selected_int_kind.f90

   1 !   Copyright (C) 2003-2024 Free Software Foundation, Inc.
   2 !   Contributed by Kejia Zhao <kejia_zh@yahoo.com.cn>
   3 !
   4 !This file is part of the GNU Fortran 95 runtime library (libgfortran).
   5 !
   6 !Libgfortran is free software; you can redistribute it and/or
   7 !modify it under the terms of the GNU General Public
   8 !License as published by the Free Software Foundation; either
   9 !version 3 of the License, or (at your option) 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 function _gfortran_selected_int_kind (r)
  26   implicit none
  27   integer, intent(in) :: r
  28   integer :: _gfortran_selected_int_kind
  29   integer :: i
  30   ! Integer kind_range table
  31   type :: int_info
  32     integer :: kind
  33     integer :: range
  34   end type int_info
  35
  36   include "selected_int_kind.inc"
  37
  38   do i = 1, c
  39     if (r <= int_infos(i)%range) then
  40       _gfortran_selected_int_kind = int_infos(i)%kind
  41       return
  42     end if
  43   end do
  44   _gfortran_selected_int_kind = -1
  45   return
  46 end function
  47
  48
  49 ! At this time, our logical and integer kinds are the same
  50
  51 function _gfortran_selected_logical_kind (bits)
  52   implicit none
  53   integer, intent(in) :: bits
  54   integer :: _gfortran_selected_logical_kind
  55   integer :: i
  56   ! Integer kind_range table
  57   type :: int_info
  58     integer :: kind
  59     integer :: range
  60   end type int_info
  61
  62   include "selected_int_kind.inc"
  63
  64   do i = 1, c
  65     if (bits <= 8 * int_infos(i)%kind) then
  66       _gfortran_selected_logical_kind = int_infos(i)%kind
  67       return
  68     end if
  69   end do
  70   _gfortran_selected_logical_kind = -1
  71   return
  72 end function