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! { dg-do compile }

! { dg-options "-fcoarray=single -std=f2008" }

!

! PR fortran/18918

!

! Diagnostic for atomic subroutines

!

use iso_fortran_env, only: atomic_int_kind, atomic_logical_kind

implicit none

integer(atomic_int_kind) :: a(1)[*]

logical(1) :: c[*]

integer(atomic_int_kind) :: b

logical(atomic_logical_kind) :: d, e[*]

call atomic_define(a, 7_2) ! { dg-error "must be a scalar" }

call atomic_ref(b, b) ! { dg-error "shall be a coarray" }

call atomic_define(c, 7) ! { dg-error "an integer of ATOMIC_INT_KIND or a logical of ATOMIC_LOGICAL_KIND" }

call atomic_ref(d, a(1)) ! { dg-error "shall have the same type" }

call atomic_ref(.true., e) ! { dg-error "shall be definable" }

end