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# GoSub...Return Statement

Calls a subroutine that is indicated by a label from a subroutine or a function. The statements following the label are executed until the next Return statement. Afterwards, the program continues with the statement that follows the GoSub statement.

## Sintaxe:

    ver Parámetros

## Parámetros:

Sub/Function

bloque de instrucións

Etiqueta

bloque de instrucións

Etiqueta GoSub

Exit Sub/Function

Etiqueta:

bloque de instrucións

Volver

End Sub/Function

The GoSub statement calls a local subroutine indicated by a label from within a subroutine or a function. The name of the label must end with a colon (":").

If the program encounters a Return statement not preceded by GoSub, LibreOffice Basic returns an error message. Use Exit Sub or Exit Function to ensure that the program leaves a Sub or Function before reaching the next Return statement.

The following example demonstrates the use of GoSub and Return. By executing a program section twice, the program calculates the square root of two numbers that are entered by the user.

## Exemplo:

    Sub ExampleGoSub
    Dim iInputa As Single
    Dim iInputb As Single
    Dim iInputc As Single
        iInputa = Int(InputBox("Introduza o primeiro número: ","EntradaNúmero"))
        iInputb = Int(InputBox("Introduza o segundo número: ","EntradaNúmero"))
        iInputc=iInputa
        GoSub SquareRoot
        Print "A raíz cadrada de";iInputa;" é";iInputc
        iInputc=iInputb
        GoSub SquareRoot
        Print "A raíz cadrada de";iInputb;" de";iInputc
        Exit Sub
    SquareRoot:
        iInputc=sqr(iInputc)
        Return
    End Sub