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# Error-Handling Functions

Use the following statements and functions to define the way LibreOffice Basic reacts to run-time errors.

LibreOffice Basic offers several methods to prevent the termination of a program when a run-time error occurs.

## CVErr Function

Converts a string expression or numeric expression to a variant expression of the sub-type "Error".

## Erl Function

Returns the line number where an error occurred during program execution.

## Err Function

Returns an error code that identifies the error that occurred during program execution.

## Err Object [VBA]

Use VBA Err object to raise or handle runtime errors.

## IsError Function

Tests if a variable contains an error value.

## Error Function

Returns the error message that corresponds to a value or raises a given error context.

## On Error GoTo ... Resume Statement

Enables an error-handling routine after an error occurs, or resumes program execution.

## Resume Statement

Resets error information and indicates what to execute next.

## ScriptForge.Exception service

The Exception service is a collection of methods to assist in code debugging in Basic and Python scripts and in error handling in Basic scripts.

In Basic scripts, when a run-time error occurs, the methods and properties of the Exception service help identify the error context and allow to handle it.