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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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6e01fc8dce
Added new _STRCMP and _STRICMP commands for quick string comparisons. Cleaned up QB64 to finish removing the QUI (quick user insert) code and folders. Altered UCASE and LCASE routines to be faster in some situations for us.
39 lines
1.1 KiB
Plaintext
39 lines
1.1 KiB
Plaintext
The '''ERROR''' statement is used to simulate a program error or to troubleshoot error handling procedures.
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{{PageSyntax}}
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:: ERROR code
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* Can be used to test an error handling routine by simulating an error.
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* 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.
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* Use error codes between 100 and 200 for custom program errors that will not be responded to by QB64.
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''Example:'' Creating custom error codes for a program that can be handled by an [[ON ERROR]] handling routine.
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{{CodeStart}} '' ''
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{{Cl|ON ERROR}} {{Cl|GOTO}} handler
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{{Cl|IF...THEN|IF}} x = 0 {{Cl|THEN}} {{Cl|ERROR}} 123
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x = x + 1
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{{Cl|IF...THEN|IF}} x {{Cl|THEN}} {{Cl|ERROR}} 111
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{{Cl|END}}
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handler:
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{{Cl|PRINT}} {{Cl|ERR}}, {{Cl|_ERRORLINE}}
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{{Cl|BEEP}}
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{{Cl|RESUME}} {{Cl|NEXT}} '' ''
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{{CodeEnd}}
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: '''Note: Don't use error codes under 97 or over 200 as QB64 may respond to those errors and interrupt the program!'''
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''See also:''
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*[[ON ERROR]]
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*[[ERR]], [[ERL]]
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*[[_ERRORLINE]]
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*[[ERROR Codes]] (list)
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{{PageNavigation}} |