cast overly permissive with extern(C++ ) classes; should cast through `void*`

[Timothee Cour]

but yes, API would look similar:

auto Cast(T)(T a) if(...) {}
auto Cast(string dsl)(T a) {}

On Tue, Feb 6, 2018 at 3:31 PM, Timothee Cour <thelastmammoth at gmail.com> wrote:
> assumeUnique has a very specific use case; i was describing a more
> general way to handle various types of cast (and be explicit about
> whats allowed) as mentioned above
>
> On Tue, Feb 6, 2018 at 3:18 PM, Seb via Digitalmars-d
> <digitalmars-d at puremagic.com> wrote:
>> On Tuesday, 6 February 2018 at 23:15:07 UTC, Timothee Cour wrote:
>>>>
>>>> Like assumeUnique?
>>>
>>> https://dlang.org/library/std/exception/assume_unique.html
>>>
>>> what do you mean? u mean adding "unique" to the DSL list ? maybe!
>>
>>
>>
>> You asked: Actually how about introducing a library solution for explicit
>> casting.
>> That's why I thought about the existing assumeUnique:
>>
>>
>> ```
>> immutable(T)[] assumeUnique(T)(ref T[] array) pure nothrow
>> {
>>     auto result = cast(immutable(T)[]) array;
>>     array = null;
>>     return result;
>> }
>> ```
>>
>> https://github.com/dlang/phobos/blob/v2.078.1/std/exception.d#L905