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## gnu.prolog.vm.interpreter
Class EnterBacktrackInfo

    java.lang.Object
      gnu.prolog.vm.BacktrackInfo
          gnu.prolog.vm.interpreter.EnterBacktrackInfo

    public class EnterBacktrackInfo

extends BacktrackInfo

this backtrack info is created upon entering in predicate, it is used to detect fails and it is a normal cut parent.

Field Summary

Fields inherited from class gnu.prolog.vm.BacktrackInfo
`codePosition, undoPosition`

Constructor Summary
`EnterBacktrackInfo(int undoPosition)` a constructor

Method Summary

Methods inherited from class gnu.prolog.vm.BacktrackInfo
`undo`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### EnterBacktrackInfo

    public EnterBacktrackInfo(int undoPosition)

  a constructor

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