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! { dg-do compile }

!

! Error checking for the SELECT TYPE statement

!

! Contributed by Janus Weil 

  type :: t1

    integer :: i = 42

    class(t1),pointer :: cp

  end type

  type, extends(t1) :: t2

    integer :: j = 99

  end type

  type :: t3

    real :: r

  end type

  type :: ts

    sequence

    integer :: k = 5

  end type

  class(t1), pointer :: a => NULL()

  type(t1), target :: b

  type(t2), target :: c

  a => b

  print *, a%i

  type is (t1)  ! { dg-error "Unexpected TYPE IS statement" }

  select type (3.5)  ! { dg-error "is not a named variable" }

  select type (a%cp) ! { dg-error "is not a named variable" }

  select type (b)    ! { dg-error "Selector shall be polymorphic" }

  end select

  select type (a)

    print *,"hello world!"  ! { dg-error "Expected TYPE IS, CLASS IS or END SELECT" }

  type is (t1)

    print *,"a is TYPE(t1)"

  type is (t2)

    print *,"a is TYPE(t2)"

  class is (ts)  ! { dg-error "must be extensible" }

    print *,"a is TYPE(ts)"

  type is (t3)   ! { dg-error "must be an extension of" }

    print *,"a is TYPE(t3)"

  type is (t4)   ! { dg-error "error in TYPE IS specification" }

    print *,"a is TYPE(t3)"

  class is (t1)

    print *,"a is CLASS(t1)"

  class is (t2) label  ! { dg-error "Syntax error" }

    print *,"a is CLASS(t2)"

  class default  ! { dg-error "cannot be followed by a second DEFAULT CASE" }

    print *,"default"

  class default  ! { dg-error "cannot be followed by a second DEFAULT CASE" }

    print *,"default2"

  end select

label: select type (a)

  type is (t1) label

    print *,"a is TYPE(t1)"

  type is (t2)  ! { dg-error "overlaps with CASE label" }

    print *,"a is TYPE(t2)"

  type is (t2)  ! { dg-error "overlaps with CASE label" }

    print *,"a is still TYPE(t2)"

  class is (t1) labe   ! { dg-error "Expected block name" }

    print *,"a is CLASS(t1)"

  end select label

end