1! { dg-do run }
2! Tests dynamic dispatch of class functions.
3!
4! Contributed by Paul Thomas <pault@gcc.gnu.org>
5!
6module m
7  type :: t1
8    integer :: i = 42
9    procedure(make_real), pointer :: ptr
10  contains
11    procedure, pass :: real => make_real
12    procedure, pass :: make_integer
13    procedure, pass :: prod => i_m_j
14    generic, public :: extract => real, make_integer
15  end type t1
16
17  type, extends(t1) :: t2
18    integer :: j = 99
19  contains
20    procedure, pass :: real => make_real2
21    procedure, pass :: make_integer => make_integer_2
22    procedure, pass :: prod => i_m_j_2
23  end type t2
24contains
25  real function make_real (arg)
26    class(t1), intent(in) :: arg
27    make_real = real (arg%i)
28  end function make_real
29
30  real function make_real2 (arg)
31    class(t2), intent(in) :: arg
32    make_real2 = real (arg%j)
33  end function make_real2
34
35  integer function make_integer (arg, arg2)
36    class(t1), intent(in) :: arg
37    integer :: arg2
38    make_integer = arg%i * arg2
39  end function make_integer
40
41  integer function make_integer_2 (arg, arg2)
42    class(t2), intent(in) :: arg
43    integer :: arg2
44    make_integer_2 = arg%j * arg2
45  end function make_integer_2
46
47  integer function i_m_j (arg)
48    class(t1), intent(in) :: arg
49        i_m_j = arg%i
50  end function i_m_j
51
52  integer function i_m_j_2 (arg)
53    class(t2), intent(in) :: arg
54        i_m_j_2 = arg%j
55  end function i_m_j_2
56end module m
57
58  use m
59  type, extends(t1) :: l1
60    character(16) :: chr
61  end type l1
62  class(t1), pointer :: a !=> NULL()
63  type(t1), target :: b
64  type(t2), target :: c
65  type(l1), target :: d
66  a => b                                   ! declared type
67  if (a%real() .ne. real (42)) STOP 1
68  if (a%prod() .ne. 42) STOP 2
69  if (a%extract (2) .ne. 84) STOP 3
70  a => c                                   ! extension in module
71  if (a%real() .ne. real (99)) STOP 4
72  if (a%prod() .ne. 99) STOP 5
73  if (a%extract (3) .ne. 297) STOP 6
74  a => d                                   ! extension in main
75  if (a%real() .ne. real (42)) STOP 7
76  if (a%prod() .ne. 42) STOP 8
77  if (a%extract (4) .ne. 168) STOP 9
78end
79