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! { dg-do run }
! Tests dynamic dispatch of class functions.
!
! 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
real function make_real (arg)
class(t1), intent(in) :: arg
make_real = real (arg%i)
end function make_real
real function make_real2 (arg)
class(t2), intent(in) :: arg
make_real2 = real (arg%j)
end function make_real2
integer function make_integer (arg, arg2)
class(t1), intent(in) :: arg
integer :: arg2
make_integer = arg%i * arg2
end function make_integer
integer function make_integer_2 (arg, arg2)
class(t2), intent(in) :: arg
integer :: arg2
make_integer_2 = arg%j * arg2
end function make_integer_2
integer function i_m_j (arg)
class(t1), intent(in) :: arg
i_m_j = arg%i
end function i_m_j
integer function i_m_j_2 (arg)
class(t2), intent(in) :: arg
i_m_j_2 = arg%j
end function 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
a => b ! declared type
if (a%real() .ne. real (42)) call abort
if (a%prod() .ne. 42) call abort
if (a%extract (2) .ne. 84) call abort
a => c ! extension in module
if (a%real() .ne. real (99)) call abort
if (a%prod() .ne. 99) call abort
if (a%extract (3) .ne. 297) call abort
a => d ! extension in main
if (a%real() .ne. real (42)) call abort
if (a%prod() .ne. 42) call abort
if (a%extract (4) .ne. 168) call abort
end
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