Speaking about D mistakes Steve spoke about missing tail const.
I was thinking about this, and I fully agree that it is a hole.
I don't know if it was already discussed, but I was thinking that one
could introduce
*const T t1;
and
*immutable T t2;
Sorry if i am overlooking something but if we are going that far, why not
just :
const(int)* p; // tail const pointer - already here
const(int)& r; // tail const reference - will be introduced and quite
straightforward.
One can see that this tail const is really a common type, indeed string
is such a type, and a function can be pure even if its arguments is
*immutable, because any changes would be done to a local copy in the
function.
I think that these things point toward the usefulness of a *const and
*immutable attributes.
It is indeed common and IMHO it is the biggest reason why pointers are
still used too much in C++ where references should be the obvious choice.
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