gcc/testsuite/gfortran.dg/interface_6.f90

   1 ! { dg-do compile }
   2 ! One of the tests of the patch for PR30068.
   3 ! Taken from the fortran 2003 standard C11.2.
   4 !
   5 ! The standard specifies that the optional arguments should be
   6 ! ignored in the counting of like type/kind, so the specific
   7 ! procedures below are invalid, even though actually unambiguous.
   8 !
   9 INTERFACE BAD8
  10   SUBROUTINE S8A(X,Y,Z)
  11     REAL,OPTIONAL :: X
  12     INTEGER :: Y
  13     REAL :: Z
  14   END SUBROUTINE S8A
  15   SUBROUTINE S8B(X,Z,Y)
  16     INTEGER,OPTIONAL :: X
  17     INTEGER :: Z
  18     REAL :: Y
  19   END SUBROUTINE S8B ! { dg-error "Ambiguous interfaces" }
  20 END INTERFACE BAD8
  21 real :: a, b
  22 integer :: i, j
  23 call bad8(x,i,b)
  24 end