http://wg21.link/P0847

On 29/09/2019 15:52, Phil Bouchard via Std-Proposals wrote:
> Greetings,
>
>
> How many time did we have to redundantly write the same member functions just to add a const version? Ex.:
>
> struct A
>
> {
>
> A & operator = (A const &) { return * this; }
>
> A const & operator = (A const &) const { return * this; }
>
> };
>
>
> What I would like to suggest would be to templatize those instances as such:
>
> struct A
>
> {
>
> template <qualifier Q>
>
> A Q & operator = (A const &) Q { return * this; }
>
> };
>
>
> This would in instantiate on-the-fly the 2 (or 4) versions of the same code.
>
>
> Thank you,
>
>