LibreOfficeDev 25.8 Help
HSYep‖Calls a subroutine that is indicated by a label inside a Sub 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.
g6Wgg‖GoSub label[:]
krBDs‖label: A line identifier indicating where to continue execution. The scope of a label in that of the routine it belongs to.
sqKLC‖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 (":").
  Sub/Function foo
  Fvi98‖    ' statements
      GoSub label
  ntDMU‖    ' statements 
      Exit Sub/Function
  label:
  9TJLT‖    ' statements 
      Return
  End Sub/Function
X2mAh‖If the program encounters a Return statement not preceded by GoSub, LibreOfficeDev 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.
HZDqC‖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.
Sub ExampleGoSub
Dim iInputa As Single
Dim iInputb As Single
Dim iInputc As Single
MrRss‖    iInputa = Int(InputBox("Enter the first number: ","NumberInput"))
tHaC2‖    iInputb = Int(InputBox("Enter the second number: ","NumberInput"))
    iInputc=iInputa
    GoSub SquareRoot
846zC‖    Print "The square root of";iInputa;" is";iInputc
    iInputc=iInputb
    GoSub SquareRoot
y5jDP‖    Print "The square root of";iInputb;" is";iInputc
    Exit Sub
SquareRoot:
    iInputc=sqr(iInputc)
    Return
End Sub