Eliminate redundancy of dup/idup

[Timon Gehr]

On 09/09/2012 05:44 PM, kenji hara wrote:
> 2012/9/10 Adam D. Ruppe <destructionator at gmail.com>:
>> On Sunday, 9 September 2012 at 15:32:01 UTC, kenji hara wrote:
>>>
>>> Then returned value can be implicitly convertible to immutable(E[]).
>>
>>
>> What about rebindable with auto? For example:
>>
>> void main() {
>>          char[] a = "cool".dup;
>>          string b = a.idup; // explicitly immutable(char)[]
>>          auto c = a.idup; // automatically typeof(c) == immutable(char)[]
>
> Yes. In this case, you should write:
>            immutable c = a.dup(); // explicit immutable conversion
>
>>          c = "another"; // so this compiles

This does not compile anymore now.

>> }

+1 for moving to library and lifting restrictions on conversion.
-1 for removing .idup, it is handy.