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Getting the current line number

by Jon Ripley, Richard Russell, January 2012

The FN_linenumber(!384) function returns the line number of the currently executing line of code as demonstrated below.

12345 PRINT FN_linenumber(!384)
      DEF FN_linenumber(E%)
      LOCAL P% : P% = PAGE
      WHILE ?P% AND P% + ?P% < E% P% += ?P% : ENDWHILE
      = (P%?2*256+P%?1)

Always pass !384 as the parameter to FN_linenumber, this interpreter internal variable is the pointer to (or within) currently-executing statement.

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getting_20the_20current_20line_20number.1522502363.txt.gz · Last modified: 2018/03/31 13:19 by