[haiku-development] Re: RFC: BDataIO::Print(), PrintToStream(BDataIO&)
- From: "Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Mon, 29 Jun 2009 19:36:30 +0200 CEST
Ingo Weinhold <ingo_weinhold@xxxxxx> wrote:
> * Added BDataIO::[V]Print() methods for convenient printf() style
> printing
> to BDataIOs.
That could also be solved by a BFormattedIO class that you can wrap
around any other class.
If one would also add parsing functionality, I think this would be the
preferred way to go.
> * Added experimental BFdIO and BFileIO, which are BPositionIO
> implementations wrapping a given file descriptor respectively FILE*.
I don't like the BFdIO name, but I don't have a good idea for a
replacement either - or have only BFileIO, and have it accept an fd as
well (the FILE* version could flush the stream, and directly write to
its fd, for example).
> * Added PrintToStream(BDataIO&) versions to BPoint, BRect, BRegion,
> BMessage.
Very welcome.
> The new BDataIO methods eat up virtual slots. I suppose Print() could
> actually be non-virtual -- at least I can't imagine why any derived
> class
> would want to do anything other than the default implementation (i.e.
> construct a va_list and call VPrint()).
>
> The name for VPrint() is "inspired" by the C/POSIX API names. Another
> option would be something more descriptive like PrintVarArgs().
I wouldn't mind either way.
I think we could also add the Meta{Read|Write|...}() functions to
BDataIO, they should be useful, too.
Bye,
Axel.
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