ERL

From QB64 Wiki
Revision as of 02:29, 24 January 2021 by Odin (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

The ERL function returns the closest previous line number before the last error.


Syntax

lastErrorLine& = ERL


Description

  • Used in an error handler to report the last line number used before the error.
  • If the program does not use line numbers, then ERL returns 0.
  • Use _ERRORLINE to return the actual code line position of an error in a QB64 program.


Examples

Example: Using a fake error code to return the line number position in a program.

ON ERROR GOTO errorfix 1 ERROR 250 ERROR 250 5 ERROR 250 END errorfix: PRINT ERL RESUME NEXT

1 1 5


See also



Navigation:
Keyword Reference - Alphabetical
Keyword Reference - By Usage
Main Wiki Page