meaning of bread crumbs

1. bread crumbs Debugging statements inserted into a program that emit output or log indicators of the programs state to a file so you can see where it dies or pin down the cause of surprising behaviour. The term is probably a reference to the Hansel and Gretel story from the Brothers Grimm; in several variants, a character leaves a trail of bread crumbs so as not to get lost in the woods. [Jargon File] breadth first search A graph search algorithm which tries all one-step extensions of current paths before trying larger extensions. This requires all current paths to be kept in memory simultaneously, or at least their end points. Opposite of depth-first search. See also best first search.

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