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! { dg-do compile }
! Abstract Types.
! Check for errors when using abstract types in an inappropriate way.
MODULE m
USE ISO_C_BINDING
IMPLICIT NONE
TYPE, ABSTRACT, BIND(C) :: bindc_t ! { dg-error "must not be ABSTRACT" }
INTEGER(C_INT) :: x
END TYPE bindc_t
TYPE, ABSTRACT :: sequence_t ! { dg-error "must not be ABSTRACT" }
SEQUENCE
INTEGER :: x
END TYPE sequence_t
TYPE, ABSTRACT :: abst_t
INTEGER :: x = 0
END TYPE abst_t
TYPE, EXTENDS(abst_t) :: concrete_t
INTEGER :: y = 1
END TYPE concrete_t
TYPE :: myt
TYPE(abst_t) :: comp ! { dg-error "is of the ABSTRACT type 'abst_t'" }
END TYPE myt
! This should be ok.
TYPE, ABSTRACT, EXTENDS(concrete_t) :: again_abst_t
INTEGER :: z = 2
END TYPE again_abst_t
CONTAINS
TYPE(abst_t) FUNCTION func () ! { dg-error "of the ABSTRACT type 'abst_t'" }
END FUNCTION func
SUBROUTINE sub (arg) ! { dg-error "is of the ABSTRACT type 'again_abst_t'" }
IMPLICIT NONE
TYPE(again_abst_t) :: arg
arg = again_abst_t () ! { dg-error "Can't construct ABSTRACT type 'again_abst_t'" }
END SUBROUTINE sub
SUBROUTINE impl ()
IMPLICIT TYPE(abst_t) (a-z) ! { dg-error "ABSTRACT type 'abst_t' used" }
END SUBROUTINE impl
END MODULE m
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