When can a Duration/Time be negative?
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@dhood is already working on this.
Since Jul 26, 2018.
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Description
Spinning off from https://github.com/ros2/geometry2/pull/67#discussion_r205326838 so I don't hijack that thread (and so the convo doesn't get lost).
I thought that Durations could not store negative values but from @tfoote's comment it sounds like that understanding is incorrect. The source of my misunderstanding is this line:
Should that check be removed? Or is it appropriate in that situation?
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