ERRORLINE: Difference between revisions

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''Example:'' Displaying the current program line using a simulated [[ERROR]] code.
''Example:'' Displaying the current program line using a simulated [[ERROR]] code.
{{CodeStart}}
{{CodeStart}}
{{Cl|ON ERROR}} {{Cl|GOTO}} DebugLine 'can't use {{Cl|GOSUB}}
{{Cl|ON ERROR}} {{Cl|GOTO}} DebugLine {{Text|<nowiki>'can't use GOSUB</nowiki>|#919191}}


{{Cl|ERROR}} 250 'simulated error code
{{Cl|ERROR}} {{Text|250|#F580B1}} {{Text|<nowiki>'simulated error code</nowiki>|#919191}}


{{Cl|END}}
{{Cl|END}}

Latest revision as of 21:18, 28 March 2023

The _ERRORLINE function returns the source code line number that caused the most recent runtime error.


Syntax

e% = _ERRORLINE


Description

  • Used in program error troubleshooting.
  • Does not require that the program use line numbers as it counts the actual lines of code.
  • The code line can be found using the QB64 IDE (Use the shortcut Ctrl+G to go to a specific line) or any other text editor such as Notepad.


Examples

Example: Displaying the current program line using a simulated ERROR code.

ON ERROR GOTO DebugLine 'can't use GOSUB

ERROR 250 'simulated error code

END
DebugLine:
PRINT _ERRORLINE
RESUME NEXT


See also



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