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(elisp)Checking Whether to Stop

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Checking Whether to Stop
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   Whenever Edebug is entered, it needs to save and restore certain data
before even deciding whether to make trace information or stop the
program.

   * `max-lisp-eval-depth' and `max-specpdl-size' are both incremented
     once to reduce Edebug's impact on the stack.  You could, however,
     still run out of stack space when using Edebug.

   * The state of keyboard macro execution is saved and restored.  While
     Edebug is active, `executing-macro' is bound to
     `edebug-continue-kbd-macro'.