Function behind the constructor
SoundCardDevice::SoundCardDevice( const char* deviceName,
Sptr < Fifo < Sptr<SipProxyEvent> > > inputQ,
Sptr < Fifo < Sptr<SipProxyEvent> > > outputQ )
: ResGwDevice( deviceName, inputQ, outputQ ),
audioStack( 0 ),
inRtpPkt( 0 ),
ringbackFd( -1 )
{
function here...
}
I know this is a constructor, but what does it mean when functions:
ResGwDevice( deviceName, inputQ, outputQ ),
audioStack( 0 ),
inRtpPkt( 0 ),
ringbackFd( -1 )
included at the end of it?
That's an initialization list, each of the members are initialized with the value in the parentheses:
The above constructor could also be written as:Code:class test { int a, b, c; public: test() : a(0), b(0), c(0) {} };
-PreludeCode:test() { a = 0; b = 0; c = 0; }
My best code is written with the delete key.
int i = 10; //is initialize
int i;
i = 10; //is assignment.
The first one in the previous post is initialization and second one is assignment. You would get into lot of situations in c++ where you would not be allowed to assign but only initialize.. for eg constants members
PS: Please re-visit your previous post regarding
"Sptr<CallId> myId meaning ", I have tried to explain it better
Last edited by shiv_tech_quest; 01-09-2003 at 03:33 AM.
