ERL: Difference between revisions
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(Created page with "The ERL function returns the closest previous line number before the last error. {{PageSyntax}} : ''lastErrorLine&'' = ERL {{PageDescription}} * 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. {{PageExamples}} ''Example:'' Using a fake error code to return the line number p...") |
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{{Cl|PRINT}} {{Cl|ERL}} | {{Cl|PRINT}} {{Cl|ERL}} | ||
{{Cl|RESUME}} {{Cl|NEXT}} | {{Cl|RESUME}} {{Cl|NEXT}} | ||
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{{OutputStart}}1 | {{OutputStart}}1 | ||
Latest revision as of 01:34, 23 January 2023
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