gcc/testsuite/gfortran.dg/module_procedure_1.f90

   1 ! { dg-do run }
   2 ! Modified program from http://groups.google.com/group/\
   3 ! comp.lang.fortran/browse_frm/thread/423e4392dc965ab7#
   4 !
   5 module myoperator
   6    contains
   7       function dadd(arg1,arg2)
   8          integer ::dadd(2)
   9          integer, intent(in) :: arg1(2), arg2(2)
  10          dadd(1)=arg1(1)+arg2(1)
  11          dadd(2)=arg1(2)+arg2(2)
  12       end function dadd
  13 end module myoperator
  14
  15 program test_interface
  16
  17    use myoperator
  18
  19    implicit none
  20
  21    interface operator (.myadd.)
  22       module procedure dadd
  23    end interface
  24
  25    integer input1(2), input2(2), mysum(2)
  26
  27    input1 = (/0,1/)
  28    input2 = (/3,3/)
  29    mysum = input1 .myadd. input2
  30    if (mysum(1) /= 3 .and. mysum(2) /= 4) STOP 1
  31
  32    call test_sub(input1, input2)
  33
  34 end program test_interface
  35
  36 subroutine test_sub(input1, input2)
  37
  38    use myoperator
  39
  40    implicit none
  41
  42    interface operator (.myadd.)
  43       module procedure dadd
  44    end interface
  45
  46    integer, intent(in) :: input1(2), input2(2)
  47    integer mysum(2)
  48
  49    mysum = input1 .myadd. input2
  50    if (mysum(1) /= 3 .and. mysum(2) /= 4) STOP 2
  51
  52 end subroutine test_sub