99 lines
1.3 KiB
Fortran
99 lines
1.3 KiB
Fortran
! { dg-do run }
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!
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! executing SELECT TYPE statements with CLASS IS blocks
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!
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! Contributed by Janus Weil <janus@gcc.gnu.org>
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implicit none
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type :: t1
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integer :: i
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end type t1
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type, extends(t1) :: t2
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integer :: j
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end type t2
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type, extends(t2) :: t3
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real :: r
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end type
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class(t1), pointer :: cp
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type(t1), target :: a
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type(t2), target :: b
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type(t3), target :: c
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integer :: i
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cp => c
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i = 0
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select type (cp)
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type is (t1)
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i = 1
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type is (t2)
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i = 2
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class is (t1)
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i = 3
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class default
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i = 4
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end select
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print *,i
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if (i /= 3) call abort()
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cp => a
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select type (cp)
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type is (t1)
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i = 1
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type is (t2)
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i = 2
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class is (t1)
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i = 3
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end select
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print *,i
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if (i /= 1) call abort()
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cp => b
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select type (cp)
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type is (t1)
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i = 1
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class is (t3)
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i = 3
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class is (t2)
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i = 4
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class is (t1)
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i = 5
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end select
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print *,i
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if (i /= 4) call abort()
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cp => b
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select type (cp)
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type is (t1)
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i = 1
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class is (t1)
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i = 5
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class is (t2)
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i = 4
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class is (t3)
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i = 3
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end select
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print *,i
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if (i /= 4) call abort()
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cp => a
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select type (cp)
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type is (t2)
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i = 1
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class is (t2)
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i = 2
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class default
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i = 3
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class is (t3)
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i = 4
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type is (t3)
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i = 5
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end select
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print *,i
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if (i /= 3) call abort()
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end
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