| Extracted from Pike v7.8 release 866 at 2018-07-18.

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Stdio
Stdio.Readline

# Method Stdio.Readline()->delta_history()

Method delta_history

  `void delta_history(int d)`

Description

  Changes the line to a line from the history d steps from the current entry (0 being the current line, negative values older, and positive values newer).

Note

  Only effective if you have a history object.