Use of Functions

[Kernelpanic]

SMcNeill: "I'm not certain what "unless you tell them to" refers to"

It refers to exactly what you showed in your example:
FUNCTION foo (x)
   foo = 2 * x
   X = x + 1  ' <<<  here Steve told the function to change the variable! not normally done with functions
END FUNCTION

This way, nothing happens because the function exits before x = x + 1.

Code: (Select All)

Dim As Integer x



x = 4

Print Using "Ergebnis: ###.###"; foo(x)



Function foo (x)

  foo = 2 * x

  x = x + 1

End Function

This makes sense.

Code: (Select All)

Dim As Integer x



x = 4

Print Using "Ergebnis: ###.###"; foo(x)



Function foo (x)

  x = x + 1

  foo = 2 * x

  'x = x + 1

End Function