Re: Using C++ classes from Objective C

FROM : Jeremy
DATE : Wed Mar 19 21:32:20 2008

Yes, I am.  I have tried using both #include and #import, but neither 
seems to work.

On Mar 19, 2008, at 4:22 PM, John Stiles wrote:

> Are you #including the header which declares MyClass?
>
>
> Jeremy wrote:

>> Hi.
>>
>> I am just starting to learn Cocoa and would like to use standard C+
>> + classes from my Objective C/C++ classes.
>> Is there any known documentation on how to do this, or does anyone 
>> have any pointers?
>>
>> I tried creating a new object of my C++ class and calling a method 
>> on it in a .m file and received a bunch of errors (including new 
>> not being found).
>>
>> I then changed my .m file to a .mm file and all of the errors went 
>> away except for one:
>> "cannot find interface declaration for 'MyClass'"
>>
>> The code in my .mm file is as such:
>>
>> m_pMemberVariable = new MyClass();
>> const unsigned int nRes = m_pMemberVariable->MyFunc();
>>
>> The second line gets the error. The new allocation in the first 
>> line seems to compile fine.
>>
>> Do I need to create some sort of bridge class or method?
>>
>> Thanks,
>> Jeremy
>>
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