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! { dg-do run }
! Tests dynamic dispatch of class subroutines.
!
! Contributed by Paul Thomas <pault@gcc.gnu.org>
!
module m
type :: t1
integer :: i = 42
procedure(make_real), pointer :: ptr
contains
procedure, pass :: real => make_real
procedure, pass :: make_integer
procedure, pass :: prod => i_m_j
generic, public :: extract => real, make_integer
end type t1
type, extends(t1) :: t2
integer :: j = 99
contains
procedure, pass :: real => make_real2
procedure, pass :: make_integer => make_integer_2
procedure, pass :: prod => i_m_j_2
end type t2
contains
subroutine make_real (arg, arg2)
class(t1), intent(in) :: arg
real :: arg2
arg2 = real (arg%i)
end subroutine make_real
subroutine make_real2 (arg, arg2)
class(t2), intent(in) :: arg
real :: arg2
arg2 = real (arg%j)
end subroutine make_real2
subroutine make_integer (arg, arg2, arg3)
class(t1), intent(in) :: arg
integer :: arg2, arg3
arg3 = arg%i * arg2
end subroutine make_integer
subroutine make_integer_2 (arg, arg2, arg3)
class(t2), intent(in) :: arg
integer :: arg2, arg3
arg3 = arg%j * arg2
end subroutine make_integer_2
subroutine i_m_j (arg, arg2)
class(t1), intent(in) :: arg
integer :: arg2
arg2 = arg%i
end subroutine i_m_j
subroutine i_m_j_2 (arg, arg2)
class(t2), intent(in) :: arg
integer :: arg2
arg2 = arg%j
end subroutine i_m_j_2
end module m
use m
type, extends(t1) :: l1
character(16) :: chr
end type l1
class(t1), pointer :: a !=> NULL()
type(t1), target :: b
type(t2), target :: c
type(l1), target :: d
real :: r
integer :: i
a => b ! declared type
call a%real(r)
if (r .ne. real (42)) call abort
call a%prod(i)
if (i .ne. 42) call abort
call a%extract (2, i)
if (i .ne. 84) call abort
a => c ! extension in module
call a%real(r)
if (r .ne. real (99)) call abort
call a%prod(i)
if (i .ne. 99) call abort
call a%extract (3, i)
if (i .ne. 297) call abort
a => d ! extension in main
call a%real(r)
if (r .ne. real (42)) call abort
call a%prod(i)
if (i .ne. 42) call abort
call a%extract (4, i)
if (i .ne. 168) call abort
end
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