On Thu, Jun 12, 2003 at 04:02:50PM +0200, Rafael Garcia-Suarez wrote:
> Nicholas Clark wrote:
> >
> > class Foo {
> > ...
> > std::size_t spare = 0
> > std::size_t allocate = 4096
> > std::size_t min_readline = 80
> >
> > and have the compiler know that if I specify a member initialiser in my
> > my constructor, then that should be used, otherwise to default to using
> > the value I say. (To avoid the inevitable search/replace if I want to
> > change that value)
>
> That's actually valid Java syntax (modulo a trailing C<;>). The default
> value can be any expression (as long as it doesn't involve a reference
> to the object being constructed, IIRC).
>
> In fact Java provides a notion of instance initialiser, run before
> any specific constructor you're invoking, that initialises such fields,
> and may run other code.
This wasn't quite what I was thinking about. I was more for typing
laziness (and avoiding cut&paste) - I'd like a default for the
instance initialiser, but only to be used (by the compiler's code
generator) if I don't specify a specific initialiser in that (overloaded)
constructor.
But currently I'm having my mind warped by C++, so I may not be sane.
Nicholas Clark
