extern(C++, NS)

[Walter Bright via Digitalmars-d]

On 11/29/2015 8:31 PM, deadalnix wrote:
> On Sunday, 29 November 2015 at 18:29:14 UTC, Walter Bright wrote:
>> On 11/28/2015 8:40 PM, Manu via Digitalmars-d wrote:
>>> The trouble mostly appears in this situation:
>>>
>>> file1.d
>>>    extern(C++, NS) struct X;
>>>
>>> file2.d
>>>    extern(C++, NS) struct Y;
>>>
>>> file3.d
>>>    import file1, file2;
>>>    X x; // nope
>>>    Y y; // nope
>>>    NS.X x; // NS has multiple definitions...
>>>    NS.Y y; // NS has multiple definitions...
>>
>>     file1.NS.X x;
>>     file2.NS.Y y;
>>
>> works.
>
> Why not produce something similar to an overload set for C++ namespace ? An
> error needs to be issued only if X or Y is duplicated, otherwise, this is fine.

Because I'd rather have symbol table lookups done in a consistent manner, rather 
than special casing it everywhere. The above behavior is completely consistent 
with how everything else works, because it uses the exact same code.