I'm trying to bind to some C++ code, but when I compile the D side, there are errors.  Here's my reduced test case:

// C++
namespace ns {
  void func1();
  void func2();
}

// D
module cpp;

extern(C++, ns) void func1();
extern(C++, ns) void func2()

dmd says:cpp_test.d(4): Error: namespace cpp.ns conflicts with namespace
cpp.ns at cpp_test.d(3)

What does this mean and how do I fix it?

Thanks!
-- 
Paul O'Neil
Github / IRC: todayman

On Friday, 31 October 2014 at 02:01:00 UTC, Paul O'Neil wrote:
> I'm trying to bind to some C++ code, but when I compile the D side,
> there are errors.  Here's my reduced test case:
>
> // C++
> namespace ns {
>   void func1();
>   void func2();
> }
>
> // D
> module cpp;
>
> extern(C++, ns) void func1();
> extern(C++, ns) void func2()
>
> dmd says:cpp_test.d(4): Error: namespace cpp.ns conflicts with namespace
> cpp.ns at cpp_test.d(3)
>
> What does this mean and how do I fix it?
>
> Thanks!

Did you try this?

extern(C++, ns)
{
    void func1();
    void func2();
}

The compiler probably thinks you're trying to declare two separate namespaces. I'm not sure if this is intended or not.

On 10/31/2014 12:55 AM, Meta wrote:
> On Friday, 31 October 2014 at 02:01:00 UTC, Paul O'Neil wrote:
>> I'm trying to bind to some C++ code, but when I compile the D side, there are errors.  Here's my reduced test case:
>>
>> // C++
>> namespace ns {
>>   void func1();
>>   void func2();
>> }
>>
>> // D
>> module cpp;
>>
>> extern(C++, ns) void func1();
>> extern(C++, ns) void func2()
>>
>> dmd says:cpp_test.d(4): Error: namespace cpp.ns conflicts with namespace
>> cpp.ns at cpp_test.d(3)
>>
>> What does this mean and how do I fix it?
>>
>> Thanks!
> 
> Did you try this?
> 
> extern(C++, ns)
> {
>     void func1();
>     void func2();
> }
> 
> The compiler probably thinks you're trying to declare two separate namespaces. I'm not sure if this is intended or not.

Thanks for the response.  That does work.

Should I file a bug report or create a PR for the docs?

-- 
Paul O'Neil
Github / IRC: todayman

On Friday, 31 October 2014 at 23:22:50 UTC, Paul O'Neil wrote:
> Thanks for the response.  That does work.
>
> Should I file a bug report or create a PR for the docs?

It might be a good idea to create a thread in DigitalMars.D to get clarification on the intended behaviour. A doc PR never hurts either.

On Fri, 31 Oct 2014 19:23:06 -0400
"Paul O'Neil via Digitalmars-d-learn"
<digitalmars-d-learn@puremagic.com> wrote:

> Thanks for the response.  That does work.
> 
> Should I file a bug report or create a PR for the docs?
i think it will be fine. and i think that this is more like a bug, 'cause it's ovbious that user wants the same namespace, not two identically named ones.