On Tue, Mar 12, 2002 at 09:32:07AM +0100, Lars Gullik Bjønnes wrote:
> | Bad example. No class should contain more than one raw 'owned' pointer
> | is a better rule...
>
> And _way_ harder to enforce..., and also please explain why this is a
> bad example? And why shouldn't a class contain more than one pointer?
And most one _raw_ _owning_ pointer.
One is sometimes necessary for low level classes wrapping resources (like
vector etc). Anything else should use these wrappers. A class that wraps
two 'raw' resources does too much.
> Does this one suid you better:
>
> class Foo {
> // unsafe
> Foo()
> : bar(new Bar), str(10, 'n')
> {}
> // safeer
> Foo()
> : str(10, 'n')
> {
> bar = new Bar;
> }
> private:
> Bar * bar;
> string str;
> };
No. Bar * should be wrapped in a class of its own with value semantics.
[Apart from that I am always a bit reluctant to follow schemes that make
code longer. And according to the other LyX rules the 'safer' version is
two lines longer...]
Andre'
--
André Pönitz .............................................. [EMAIL PROTECTED]
