1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
! { dg-do run }
!
! PR 40164: Fortran 2003: "Arrays of procedure pointers" (using PPCs)
!
! Original test case by Barron Bichon <barron.bichon@swri.org>
! Adapted by Janus Weil <janus@gcc.gnu.org>
PROGRAM test_prog
ABSTRACT INTERFACE
FUNCTION fn_template(n,x) RESULT(y)
INTEGER, INTENT(in) :: n
REAL, INTENT(in) :: x(n)
REAL :: y(n)
END FUNCTION fn_template
END INTERFACE
TYPE PPA
PROCEDURE(fn_template), POINTER, NOPASS :: f
END TYPE PPA
TYPE ProcPointerArray
PROCEDURE(add), POINTER, NOPASS :: f
END TYPE ProcPointerArray
TYPE (ProcPointerArray) :: f_array(3)
PROCEDURE(add), POINTER :: f
real :: r
f_array(1)%f => add
f => f_array(1)%f
f_array(2)%f => sub
f_array(3)%f => f_array(1)%f
r = f(1.,2.)
if (abs(r-3.)>1E-3) call abort()
r = f_array(1)%f(4.,2.)
if (abs(r-6.)>1E-3) call abort()
r = f_array(2)%f(5.,3.)
if (abs(r-2.)>1E-3) call abort()
if (abs(f_array(1)%f(1.,3.)-f_array(3)%f(2.,2.))>1E-3) call abort()
CONTAINS
FUNCTION add(a,b) RESULT(sum)
REAL, INTENT(in) :: a, b
REAL :: sum
sum = a + b
END FUNCTION add
FUNCTION sub(a,b) RESULT(diff)
REAL, INTENT(in) :: a, b
REAL :: diff
diff = a - b
END FUNCTION sub
END PROGRAM test_prog
|
