gcc/testsuite/gfortran.dg/proc_ptr_7.f90

   1 ! { dg-do run }
   2 ! { dg-additional-sources proc_ptr_7.c }
   3 !
   4 ! PR fortran/32580
   5 ! Procedure pointer test
   6 !
   7 ! Contributed by Tobias Burnus <burnus@gcc.gnu.org>
   8
   9 program proc_pointer_test
  10   use iso_c_binding, only: c_int
  11   implicit none
  12
  13   interface
  14     subroutine assignF(f)
  15       import c_int
  16       procedure(Integer(c_int)), pointer :: f
  17     end subroutine
  18   end interface
  19
  20   procedure(Integer(c_int)), pointer :: ptr
  21
  22   call assignF(ptr)
  23   if(ptr() /= 42) STOP 1
  24
  25   ptr => f55
  26   if(ptr() /= 55) STOP 2
  27
  28   call foo(ptr)
  29   if(ptr() /= 65) STOP 3
  30
  31 contains
  32
  33  subroutine foo(a)
  34    procedure(integer(c_int)), pointer :: a
  35    if(a() /= 55) STOP 4
  36    a => f65
  37    if(a() /= 65) STOP 5
  38  end subroutine foo
  39
  40  integer(c_int) function f55()
  41     f55 = 55
  42  end function f55
  43
  44  integer(c_int) function f65()
  45     f65 = 65
  46  end function f65
  47 end program proc_pointer_test