Re: direct access to ns[C]String buffer

Benjamin Smedberg wrote:
> Brodie Thiesfield wrote:
> 
>> Is there any way to get direct access to a buffer in a string class
>> similar to the MFC CString::GetBuffer()/CString::ReleaseBuffer() pair?
>>
>> terminated string into it. I want to assign this string to a nsCString
>> which is returned from the interface. The easiest way would be to
>> request the string to have the max size buffer, write the data 
> 
> 
> The "proper" way is to allocate the buffer and fill it, then use the 
> ns[C]String .Adopt() member function.  The ns[C]String class then owns 
> the buffer and will deallocate it when deleted.

OK, that sounds easy enough.

I had found the Adopt() method, but then because I had some hassles 
where it seemed that the method wasn't available on all classes, I went 
looking for another method. It looks like it is there now though, so it 
seems that I must have been on drugs at the time.

If the ns[C]String in question is an |inout| or |out| argument to an 
XPCOM interface method, the memory allocation needs to be done with 
nsMemory::Alloc() and everything will be happy, right?

What do I use other times (not an IDL argument), is it best to always 
use nsMemory::Alloc() for ns[C]Strings?

Regards,
Brodie.