625be28635
* Makefile.am (gfor_helper_src): Split selected_kind.f90.
(gfor_built_src): Add selected_int_kind.inc selected_real_kind.inc.
(selected_int_kind.inc selected_real_kind.inc): New rules.
* Makefile.in: Regenerate.
* mk-sik-inc.sh, mk-srk-inc.sh: New files.
* intrinsics/selected_int_kind.f90: Split from selected_kind.f90,
include table of detected kinds.
* intrinsics/selected_real_kind.f90: Similarly.
From-SVN: r86801
62 lines
1.8 KiB
Fortran
62 lines
1.8 KiB
Fortran
! Copyright 2003, 2004 Free Software Foundation, Inc.
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! Contributed by Kejia Zhao <kejia_zh@yahoo.com.cn>
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!
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!This file is part of the GNU Fortran 95 runtime library (libgfor).
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!
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!GNU libgfor is free software; you can redistribute it and/or
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!modify it under the terms of the GNU Lesser General Public
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!License as published by the Free Software Foundation; either
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!version 2.1 of the License, or (at your option) any later version.
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!
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!GNU libgfor is distributed in the hope that it will be useful,
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!but WITHOUT ANY WARRANTY; without even the implied warranty of
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!MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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!GNU Lesser General Public License for more details.
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!
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!You should have received a copy of the GNU Lesser General Public
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!License along with libgfor; see the file COPYING. If not,
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!write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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!Boston, MA 02111-1307, USA.
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!
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function selected_real_kind (p, r)
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implicit none
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integer, optional, intent (in) :: p, r
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integer :: selected_real_kind
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integer :: i, p2, r2
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logical :: found_p, found_r
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! Real kind_precision_range table
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type :: real_info
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integer :: kind
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integer :: precision
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integer :: range
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end type real_info
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include "selected_real_kind.inc"
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selected_real_kind = 0
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p2 = 0
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r2 = 0
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found_p = .false.
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found_r = .false.
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if (present (p)) p2 = p
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if (present (r)) r2 = r
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! Assumes each type has a greater precision and range than previous one.
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do i = 1, c
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if (p2 <= real_infos (i) % precision) found_p = .true.
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if (r2 <= real_infos (i) % range) found_r = .true.
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if (found_p .and. found_r) then
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selected_real_kind = real_infos (i) % kind
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return
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end if
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end do
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if (.not. (found_p)) selected_real_kind = selected_real_kind - 1
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if (.not. (found_r)) selected_real_kind = selected_real_kind - 2
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return
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end function
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