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! { dg-do compile }

! One of the tests of the patch for PR30068.

! Taken from the fortran 2003 standard C11.2.

!

! The standard specifies that the optional arguments should be

! ignored in the counting of like type/kind, so the specific

! procedures below are invalid, even though actually unambiguous.

!

INTERFACE BAD8

  SUBROUTINE S8A(X,Y,Z)

    REAL,OPTIONAL :: X

    INTEGER :: Y

    REAL :: Z

  END SUBROUTINE S8A

  SUBROUTINE S8B(X,Z,Y)

    INTEGER,OPTIONAL :: X

    INTEGER :: Z

    REAL :: Y

  END SUBROUTINE S8B ! { dg-error "Ambiguous interfaces" }

END INTERFACE BAD8

real :: a, b

integer :: i, j

call bad8(x,i,b)

end