Re: Question on guidelines of integrating C++ calls inside an Obj C class
Re: Question on guidelines of integrating C++ calls inside an Obj C class
- Subject: Re: Question on guidelines of integrating C++ calls inside an Obj C class
- From: Óscar Morales Vivó <email@hidden>
- Date: Thu, 28 Jul 2005 15:30:44 -0400
Search the documentation for "Objective-C++" and you should find what
you're looking for.
I think also there were some improvements to Obj-C++ in Tiger (like
constructors and destructors of C++ objects in Obj-C instances being
called when they should. Before you had to use pointers and create/
delete them manually in init/dealloc).
Hope that helps.
On Jul 28, 2005, at 00:01 , John Draper wrote:
Hi,
I'm making calls to a UNIX library written in C++. In specific,
it is the
'resipricate" library written in C++.
I want to use these libraries inside of an Objective C class, in
particular
a "Controller" class. The controller class is obviousy going to
have to
reference the C++ classes, and instances of the C++ classes need to
be defined as Objective C classes. Is this possible? Or do I
always have
to use pointers to the C++ classes when referencing them and use "new"
to Instantiate them?
Another thing I'm not sure of is doing this...
In C++
message.header(h_To).displayName() = "Speedy Shannon";
The "=" is overridden... so, is the string "Speedy Shannon" really
a string?
I want to basically convert an NSString which would come from a GUI,
and pass that into the C++ function you see above...
Would this work?
NSString *str = @"Speedy Shannon";
char *cstr = alloc([str length] + 1); // alloc space for C string
[str getCString:cstr]; // get it from the
NSString
message.header(h_To).displayName() = cstr; // <--- is this
the same as the one above?
The "operator overload" code '=' is defined as such
SipMessage&
SipMessage::operator=(const SipMessage& rhs)
{
// some code....
}
John
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