Explicitly saying ref or out when invoking a function
Nick Sabalausky
a at a.a
Tue Aug 11 13:05:12 PDT 2009
"Ary Borenszweig" <ary at esperanto.org.ar> wrote in message
news:h5s3e9$2kml$1 at digitalmars.com...
> In C# when you define a function that takes an out or ref parameter, when
> invoking that function you must also specify ref or out. For example:
>
> void fun(ref uint x, double y);
>
> uint a = 1;
> double b = 2;
> fun(ref a, b);
>
> When I first started using C# it really annoyed me that I had to put that
> keyword there just to get my program compiled. "I know what I'm doing", I
> thought. But later, when reading the code, I found it very helpful to know
> that my "a" could be changed when invoking "fun". As always, code is read
> much more times than written, and I think this little tips help better
> understand the code.
>
> What do you think?
That's something I've always liked about C# and always wanted in D.
Although, what some people have said about just coloring it in an editor is
not a bad point (althogh it seems like we may be starting to run out of
colors...).
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