Re: [ns] new headers

[Debojyoti Dutta <ddutta@ISI.EDU>]

Changed that too. 

Debo

On Mon, 16 Oct 2000, Ratul Mahajan wrote:

> 
> you probably also need to change, ns-packet.tcl
> i think, the documentation explains that.
> 
> 	-ratul
> 
> On Mon, 16 Oct 2000, Debojyoti Dutta wrote:
> 
> > Hi,
> > 
> > I defined a header like this:
> > 
> > struct hdr_x{
> > 
> >         int x_;
> >         int& x(){ return x_; }
> > 
> > 	static int offset_;	// offset for this header
> > 
> > 	inline static int& offset() { return offset_; }
> > 	inline static hdr_ebn* access(Packet* p) {
> > 		return (hdr_ebn*) p->access(offset_);
> > 	}
> > 
> > };
> > 
> > And then defined the OTcl clas like:
> > 
> > static class XHeaderClass : public PacketHeaderClass {
> > public:
> >         XHeaderClass() : PacketHeaderClass("PacketHeader/X",
> >                                              sizeof(hdr_x)) {
> >                 bind_offset(&hdr_x::offset());
> >         }
> > } class_xhdr;
> > 
> > On compiling, it doesnt give errors. On linking it gives the following it
> > gives:
> > 
> > proto-x.o: In function `hdr_x::offset(void)':
> > proto-x.o(.hdr_x::gnu.linkonce.t.offset(void)+0x4): undefined reference
> > to `hdr_x::offset_'
> > collect2: ld returned 1 exit status
> > make: *** [ns] Error 1
> > 
> > 
> > Help will be appreciated 
> > 
> > Debo
> > 
> > 
> 
>