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program main
integer :: b(3) = [10, 20, 30]
integer :: n = 3
call driver(implicit_interface_check, b, n)
contains
subroutine driver(fnc, arr, m)
integer, intent(in) :: m, arr(m)
print *, abs(-1.0)
call fnc(arr, m, arr(3))
end subroutine
subroutine implicit_interface_check(arr1, m, c)
integer, intent(in) :: m, arr1(m), c
if (m /= 3) error stop
if (c /= 30) error stop
if (arr1(1) /= 10) error stop
if (arr1(2) /= 20) error stop
if (arr1(3) /= 30) error stop
end subroutine
end program
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