Returns .true.
, indicating that queues are a "first in first
out" data structure.
pure logical function queue_is_fifo()
!* Author: Chris MacMackin
! Date: February 2016
!
! Returns `.true.`, indicating that queues are a "first in first
! out" data structure.
!
queue_is_fifo = .true.
end function queue_is_fifo