SWI-Prolog -- prolog_skip

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Predicate prolog_skip_frame/1

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Availability:built-in

prolog_skip_frame(-Frame)

Indicate Frame as a skipped frame and set the‘skip level’(see prolog_skip_level/2 to the recursion depth of Frame. The effect of the skipped flag is that a redo on a child of this frame is handled differently. First, a redo trace is called for the child, where the skip level is set to redo_in_skip. Next, the skip level is set to skip level of the skipped frame.