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Add a function to indicate if the crazy arrow is empty

Author James Whitehead II <jnwhiteh@gmail.com>
Author date 2011-01-24 15:58:26
Author local date 2011-01-24 15:58:26 +0000
Committer James Whitehead II <jnwhiteh@gmail.com>
Committer date 2011-01-24 15:58:26
Committer local date 2011-01-24 15:58:26 +0000
Commit 86f4813c35fadf7f5b70ac01c19a6d89ec3eaa97
Tree f3d281e31868f029effb309a9eca8a94b6decf76
Parent fe267bb330d3cccbc168790c541aa7512645b31d
Add a function to indicate if the crazy arrow is empty