On 18 Dec 2013 08:22:58 GMT, Steven D'Aprano <st...@pearwood.info>
wrote:
On Wed, 18 Dec 2013 13:11:58 +1100, Chris Angelico wrote:
> The one differentiation that I don't like is between the . and ->
> operators. The distinction feels like syntactic salt. There's no
context
> when both are valid, save in C++ where you can create a
"pointer-like
> object" that implements the -> operator (and has the . operator
for its
> own members).
Funny you should say that in the middle of a discussion about
lifetime. In C, when you do the -> thing, you're now in a different
struct with a potentially different lifetime. If p is a local, with
auto lifetime, then so is p.x
So, although the two are mutually exclusive, there's valuable
information hidden in the required choice.
--
DaveA
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