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! { dg-do compile }

!

! PR fortran/34796

!

! Argument checks:

! - elements of deferred-shape arrays (= non-dummies) are allowed

!   as the memory is contiguous

! - while assumed-shape arrays (= dummy arguments) and pointers are

!   not (strides can make them non-contiguous)

! and

! - if the memory is non-contigous, character arguments have as

!   storage size only the size of the element itself, check for

!   too short actual arguments.

!

subroutine test1(assumed_sh_dummy, pointer_dummy)

implicit none

interface

  subroutine rlv1(y)

    real   :: y(3)

  end subroutine rlv1

end interface

real          :: assumed_sh_dummy(:,:,:)

real, pointer :: pointer_dummy(:,:,:)

real, allocatable :: deferred(:,:,:)

real, pointer     :: ptr(:,:,:)

call rlv1(deferred(1,1,1))         ! valid since contiguous

call rlv1(ptr(1,1,1))              ! { dg-error "Element of assumed-shaped or pointer array" }

call rlv1(assumed_sh_dummy(1,1,1)) ! { dg-error "Element of assumed-shaped or pointer array" }

call rlv1(pointer_dummy(1,1,1))    ! { dg-error "Element of assumed-shaped or pointer array" }

end

subroutine test2(assumed_sh_dummy, pointer_dummy)

implicit none

interface

  subroutine rlv2(y)

    character   :: y(3)

  end subroutine rlv2

end interface

character(3)          :: assumed_sh_dummy(:,:,:)

character(3), pointer :: pointer_dummy(:,:,:)

character(3), allocatable :: deferred(:,:,:)

character(3), pointer     :: ptr(:,:,:)

call rlv2(deferred(1,1,1))         ! Valid since contiguous

call rlv2(ptr(1,1,1))              ! Valid F2003

call rlv2(assumed_sh_dummy(1,1,1)) ! Valid F2003

call rlv2(pointer_dummy(1,1,1))    ! Valid F2003

! The following is kind of ok: The memory access it valid

! We warn nonetheless as the result is not what is intented

! and also formally wrong.

! Using (1:string_length) would be ok.

call rlv2(ptr(1,1,1)(1:1))              ! { dg-warning "contains too few elements" }

call rlv2(assumed_sh_dummy(1,1,1)(1:2)) ! { dg-warning "contains too few elements" }

call rlv2(pointer_dummy(1,1,1)(1:3))    ! Valid F2003

end

subroutine test3(assumed_sh_dummy, pointer_dummy)

implicit none

interface

  subroutine rlv3(y)

    character   :: y(3)

  end subroutine rlv3

end interface

character(2)          :: assumed_sh_dummy(:,:,:)

character(2), pointer :: pointer_dummy(:,:,:)

character(2), allocatable :: deferred(:,:,:)

character(2), pointer     :: ptr(:,:,:)

call rlv3(deferred(1,1,1))         ! Valid since contiguous

call rlv3(ptr(1,1,1))              ! { dg-warning "contains too few elements" }

call rlv3(assumed_sh_dummy(1,1,1)) ! { dg-warning "contains too few elements" }

call rlv3(pointer_dummy(1,1,1))    ! { dg-warning "contains too few elements" }

call rlv3(deferred(1,1,1)(1:2))         ! Valid since contiguous

call rlv3(ptr(1,1,1)(1:2))              ! { dg-warning "contains too few elements" }

call rlv3(assumed_sh_dummy(1,1,1)(1:2)) ! { dg-warning "contains too few elements" }

call rlv3(pointer_dummy(1,1,1)(1:2))    ! { dg-warning "contains too few elements" }

end