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! Copyright 2016-2021 Free Software Foundation, Inc.
!
! This program 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.
!
! This program 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.
!
! You should have received a copy of the GNU General Public License
! along with this program. If not, see <http://www.gnu.org/licenses/>.
!
! This file is the Fortran source file for derived-type-function.exp.
! It was contributed by Walfred Tedeschi (walfred.tedeschi@intel.com).
module class_Rectangle
implicit none
private
type, public :: Rectangle
real :: a
real :: b
contains
procedure :: area => rectangle_area
procedure :: print_area => print_area
end type Rectangle
contains
function rectangle_area (this) result (area)
class (Rectangle), intent (in) :: this
real :: area
area = this%a * this%b
end function rectangle_area
subroutine print_area (this)
class (Rectangle), intent (in) :: this
real :: area
area = this%area ()
print *, ' area = ', area
end subroutine print_area
end module class_Rectangle
program rectangle_Test
use class_Rectangle
implicit none
type (Rectangle) :: aRec
real areaE
aRec = Rectangle (2., 3.)
! bp
call aRec%print_area
end program rectangle_Test