[prog] C++ const method & static_cast

[Karine Proot]

On Mon, 2004-03-22 at 08:51, Dan Richter wrote:

> The second potential problem is that if getPrevious() is const, then any 
> pointer to a member that it returns must be const. 
> [...]
> The const is strongly enforced in C++. If you are going to return a 
> pointer to a member from a const method, it has to be const.
That was it. Thanks for the detailed explanation.

> One more thing: this strong enforcement of the const in C++ means that 
> you'll find it quite a pain to add it to an already complete program.
Indeed. I tried to use
   const Tab *getPrevious() const;
and I got a full delivery of 
   invalid conversion from `const Tab*' to `Tab*'

Now is the time to ask myself if it's worth it :)

Thanks again
Karine