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Andi
Joined: 11 Feb 2005
Posts: 157
Location: Germany, Niestetal
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 Posted: Sat Apr 23, 2005 1:09 pm Post subject: Calling a function with omitted parameters |
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Is there a way to omit parameters, when you call a function?
| Code: |
x = 1
z = 2
add(x, , z) ;this does not work and brings an error: Blank parameter
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When I understand it right, you have to pass always a blank var.
| Code: |
x = 1
y=
z = 2
add(x, y, z) ;and it works
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mario_a
Joined: 12 Dec 2004
Posts: 51
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| Posted: Sat Apr 23, 2005 1:24 pm Post subject: |
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Try calling the function like this :
i.e. an empty pair of double quotes for the blank parameter.
HTH,
Mario |
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Chris
Site Admin
Joined: 02 Mar 2004
Posts: 10480
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| Posted: Sat Apr 23, 2005 2:03 pm Post subject: |
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Yes, empty quotes is how you would pass a blank value. There is a plan to add default parameters to a future version, which would allow some parameters to become optional. For example: | Code: | Add(X, Y, Z = 0)
{
return X + Y + Z
}
; And call it with only two parameters to keep Z's zero default:
Result := Add(3, 2) |
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corrupt
Joined: 29 Dec 2004
Posts: 2436
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| Posted: Sat Apr 23, 2005 5:08 pm Post subject: |
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| Code: | MsgBox, % Add(124, Null, 12)
MsgBox, % Hello("World", Null)
MsgBox, % Hello(USERNAME, " How are You`?")
MsgBox, % Add(2, Null, Null)
Add(x, y, z)
{
if y =
y = 0
if z =
z = 12
Return x + y + z
}
Hello(x, y)
{
Return "Hello "x ". " y
} |
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Andi
Joined: 11 Feb 2005
Posts: 157
Location: Germany, Niestetal
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| Posted: Sat Apr 23, 2005 9:13 pm Post subject: |
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Thank you for your answers.
I what to mention, that the way corrupt suggested, requires that the var null is really an empty var (null = ). When "null = 0" it doesn't work.  |
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corrupt
Joined: 29 Dec 2004
Posts: 2436
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| Posted: Sun Apr 24, 2005 2:49 pm Post subject: |
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| Andi wrote: | | I what to mention, that the way corrupt suggested, requires that the var null is really an empty var (null = ). When "null = 0" it doesn't work. |
I would consider that to be expected and consistent behaviour. If a variable named Null isn't assigned a value this shouldn't become an issue  . |
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