https://bugs.documentfoundation.org/show_bug.cgi?id=150727
Bug ID: 150727
Summary: A reference passed as parameter gets a new target
Product: LibreOffice
Version: 7.3.5.2 release
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: UNCONFIRMED
Severity: minor
Priority: medium
Component: BASIC
Assignee: [email protected]
Reporter: [email protected]
Try the following code:
```
Sub Main()
Dim x As String
x = "foo" ' (1)
Aux(x) ' (2a)
MsgBox x ' ==> "bar", expected "foo"
End Sub
Sub Aux(y As String) ' (2b)
y = "bar" ' (3)
End Sub
```
What is expected:
(1) `x` is a reference to a string "foo".
(2a) and (2b) `y` is a **copy** of `x`, that means that both `x` and `y` are
independent references to the string "foo".
(3) `y`, by affectation, refers to a new string "bar".
This is a weird behavior because `Aux` should only get a copy of `x` and the
reference `x` should not be updated to have the new target value "bar".
I have never seen this behavior in any other language. (The closest thing I can
think of is the C preprocessor pitfalls.)
($ uname -a
Linux jferard-Z170XP-SLI 5.15.0-46-generic #49-Ubuntu SMP Thu Aug 4 18:03:25
UTC 2022 x86_64 x86_64 x86_64 GNU/Linux)
Maybe related to: https://bugs.documentfoundation.org/show_bug.cgi?id=145279
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