gdb/testsuite/gdb.fortran/derived-type-function.f90

   1 ! Copyright 2016-2020 Free Software Foundation, Inc.
   2 !
   3 ! This program is free software; you can redistribute it and/or modify
   4 ! it under the terms of the GNU General Public License as published by
   5 ! the Free Software Foundation; either version 3 of the License, or
   6 ! (at your option) any later version.
   7 !
   8 ! This program is distributed in the hope that it will be useful,
   9 ! but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 ! GNU General Public License for more details.
  12 !
  13 ! You should have received a copy of the GNU General Public License
  14 ! along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15 !
  16 ! This file is the Fortran source file for derived-type-function.exp.
  17 ! It was contributed by Walfred Tedeschi (walfred.tedeschi@intel.com).
  18
  19 module class_Rectangle
  20   implicit none
  21   private
  22
  23   type, public :: Rectangle
  24      real :: a
  25      real :: b
  26    contains
  27      procedure :: area => rectangle_area
  28      procedure :: print_area => print_area
  29   end type Rectangle
  30 contains
  31
  32   function rectangle_area (this) result (area)
  33     class (Rectangle), intent (in) :: this
  34
  35     real :: area
  36     area = this%a * this%b
  37   end function rectangle_area
  38
  39   subroutine print_area (this)
  40     class (Rectangle), intent (in) :: this
  41     real :: area
  42
  43     area = this%area ()
  44     print *, ' area = ', area
  45   end subroutine print_area
  46
  47 end module class_Rectangle
  48
  49
  50 program rectangle_Test
  51   use class_Rectangle
  52   implicit none
  53
  54   type (Rectangle) :: aRec
  55   real areaE
  56
  57   aRec = Rectangle (2., 3.)
  58   ! bp
  59   call aRec%print_area
  60
  61 end program rectangle_Test
  62