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+! Copyright (C) 2003-2013 Free Software Foundation, Inc.
+! Contributed by Kejia Zhao <kejia_zh@yahoo.com.cn>
+!
+!This file is part of the GNU Fortran runtime library (libgfortran).
+!
+!Libgfortran is free software; you can redistribute it and/or
+!modify it under the terms of the GNU General Public
+!License as published by the Free Software Foundation; either
+!version 3 of the License, or (at your option) any later version.
+!
+!Libgfortran is distributed in the hope that it will be useful,
+!but WITHOUT ANY WARRANTY; without even the implied warranty of
+!MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+!GNU General Public License for more details.
+!
+!Under Section 7 of GPL version 3, you are granted additional
+!permissions described in the GCC Runtime Library Exception, version
+!3.1, as published by the Free Software Foundation.
+!
+!You should have received a copy of the GNU General Public License and
+!a copy of the GCC Runtime Library Exception along with this program;
+!see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+!<http://www.gnu.org/licenses/>.
+
+function _gfortran_selected_real_kind2008 (p, r, rdx)
+ implicit none
+ integer, optional, intent (in) :: p, r, rdx
+ integer :: _gfortran_selected_real_kind2008
+ integer :: i, p2, r2, radix2
+ logical :: found_p, found_r, found_radix
+ ! Real kind_precision_range table
+ type :: real_info
+ integer :: kind
+ integer :: precision
+ integer :: range
+ integer :: radix
+ end type real_info
+
+ include "selected_real_kind.inc"
+
+ _gfortran_selected_real_kind2008 = 0
+ p2 = 0
+ r2 = 0
+ radix2 = 0
+ found_p = .false.
+ found_r = .false.
+ found_radix = .false.
+
+ if (present (p)) p2 = p
+ if (present (r)) r2 = r
+ if (present (rdx)) radix2 = rdx
+
+ ! Assumes each type has a greater precision and range than previous one.
+
+ do i = 1, c
+ if (p2 <= real_infos (i) % precision) found_p = .true.
+ if (r2 <= real_infos (i) % range) found_r = .true.
+ if (radix2 <= real_infos (i) % radix) found_radix = .true.
+
+ if (p2 <= real_infos (i) % precision &
+ .and. r2 <= real_infos (i) % range &
+ .and. radix2 <= real_infos (i) % radix) then
+ _gfortran_selected_real_kind2008 = real_infos (i) % kind
+ return
+ end if
+ end do
+
+ if (found_radix .and. found_r .and. .not. found_p) then
+ _gfortran_selected_real_kind2008 = -1
+ elseif (found_radix .and. found_p .and. .not. found_r) then
+ _gfortran_selected_real_kind2008 = -2
+ elseif (found_radix .and. .not. found_p .and. .not. found_r) then
+ _gfortran_selected_real_kind2008 = -3
+ elseif (found_radix) then
+ _gfortran_selected_real_kind2008 = -4
+ else
+ _gfortran_selected_real_kind2008 = -5
+ end if
+end function _gfortran_selected_real_kind2008
+
+function _gfortran_selected_real_kind (p, r)
+ implicit none
+ integer, optional, intent (in) :: p, r
+ integer :: _gfortran_selected_real_kind
+
+ interface
+ function _gfortran_selected_real_kind2008 (p, r, rdx)
+ implicit none
+ integer, optional, intent (in) :: p, r, rdx
+ integer :: _gfortran_selected_real_kind2008
+ end function _gfortran_selected_real_kind2008
+ end interface
+
+ _gfortran_selected_real_kind = _gfortran_selected_real_kind2008 (p, r)
+end function