[openbeos] Re: Pointer or reference?
- From: "Waldemar Kornewald" <Waldemar.Kornewald@xxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Sun, 28 Mar 2004 09:37:01 +0200 CEST
> By convention the Be API never expects strings to be passed in cases
> where
> the string is not changed by the callee (at least that is stated
> somewhere).
> Instead const char* is used. For functions that return a string via
> reference
> parameter, if there is a BString* version, then there's virtually
> always also
> a (char*, size_t) version.
Okay, then I will change it to const char *.
> > I really prefer the reference version. It could also state that the
> > SetLabel() method does not have side-effect (i.e.: it does not
> > modify
> > string) which could be useful sometimes.
>
> Huh? To ensure that something isn't changed, `const' is used. And it
> works
> for both, pointers and references.
I mean that we could just define this in our style-guidelines. If I
pass the pointer to my string I expect evil things to happen, but if I
pass the string object I do not know whether it is a reference or just
a copy, so I do not expect changes being made to my string.
Bye,
Waldemar
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