Question on guidelines of integrating C++ calls inside an Obj C class
Question on guidelines of integrating C++ calls inside an Obj C class
- Subject: Question on guidelines of integrating C++ calls inside an Obj C class
- From: John Draper <email@hidden>
- Date: Wed, 27 Jul 2005 21:01:27 -0700
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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