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The ERROR statement is used to simulate a program error or to troubleshoot error handling procedures.

Table of Contents Syntax Description Examples See also

Syntax

ERROR codeNumber%

Description

• Can be used to test an error handling routine by simulating an error.
• Error code 97 can be used to invoke the error handler for your own use, no real error in the program will trigger error 97.
• Use error codes between 100 and 200 for custom program errors that will not be responded to by QB64.

Examples

Example: Creating custom error codes for a program that can be handled by an ON ERROR handling routine.

[[IF...THEN|IF]] x = 0 [[THEN|THEN]] [[ERROR|ERROR]] 123 x = x + 1 [[IF...THEN|IF]] x [[THEN|THEN]] [[ERROR|ERROR]] 111 [[END|END]] handler: [[PRINT|PRINT]] [[ERR|ERR]], [[_ERRORLINE|_ERRORLINE]] [[BEEP|BEEP]] [[RESUME|RESUME]] [[NEXT|NEXT]] '' ''

Note: Don't use error codes under 97 or over 200 as QB64 may respond to those errors and interrupt the program.

See also

• ON ERROR
• ERR, ERL
• _ERRORLINE
• ERROR Codes (list)

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