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Chapter 15. Function Reference

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ERror Line Error-handling function

ERL

Returns the current statement location of the program where a run-time error occurred.

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Syntax:

Syntax:Syntax:

Syntax:

ERL

Description:

Description:Description:

Description:

ERL returns the current statement location of the program where a run-time error occurred

most recently.

• The ERL function works only with line numbers and not with labels.

• The returned value is in decimals, so it may be necessary to use the HEX$ function for

decimal-to-hexadecimal conversion when using the ERL function in error-handling

routines.

• If converted from decimals to hexadecimals with the HEX$ function, addresses which the

ERL returns correspond to ones that are outputted to the left end of the address-source

list in hexadecimal (which may be printed out if a +L option is specified in compilation).

• Since the ERL function returns a significant value only when a run-time error occurs, you

should use this function in error-handling routines where you can check the error type

for effective error recovery.

Reference:

Reference:Reference:

Reference:

Statements: ON ERROR GOTO and RESUME

Functions: ERR and HEX$

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