Axuda do LibreOffice 7.3
Define un método que se pode usar como expresión para determinar un tipo de retorno.
Sub, Function or Property statements are similar methods, without distinction. They receive parameters by reference allowing them to be modified in return. LibreOffice Basic compiler accepts their respective argument syntax to be used interchangeably.
[Private | Public] Function Name[char] (argument1 [As Type][, argument2[char][,...]]) [As typename]
instrucións
[Exit Function]
instrucións
End Function
scope: Function default scope is Public. A Private scope denotes a module internal routine, not intended to be used from other modules.
name: Name of the subroutine to contain the value returned by the function.
arguments: Parameters to be passed to the subroutine.
Sub ExampleExit
Dim sReturn As String
Dim sListArray(10) As String
Dim siStep As Single
For siStep = 0 to 10 REM Fill array with test data
sListArray(siStep) = chr$(siStep + 65)
MsgBox sListArray(siStep)
Next siStep
sReturn = LinSearch(sListArray(), "B")
Print sReturn
End Sub
Function LinSearch( sList(), sItem As String ) As Integer
Dim iCount As Integer
' BuscaLin busca en MatrizTexto:sLista() unha EntradaTexto:
REM O valor de retorno é o índice da entrada ou 0 (Nulo)
For iCount=1 To Ubound( sList() )
If sList( iCount ) = sItem Then
Exit for REM sElemen encontrado
End If
Next iCount
If iCount = Ubound( sList() ) Then iCount = 0
LinSearch = iCount
End Function