Programming Forums > Application Development > C++

CFlower · Nov 22nd, 2009, 11:04 PM

hi all ,
i have problem and three days just trying find out, but no result!!

i have two diffirent classes: Xnode and Ynode
in Ynode, i have method called tree() which it gets as argument - a reference of Xnode (as const) , and it calls its method to return one private variable xx.

(Toggle Plain Text)

void Ynode::tree(const Xnode& x){
       const Node* n=x.list();
       std::cout << n->value;
}
const  Node* Xnode::list() const {
         const Node* nod=xx;
         std:cout << nod->value;
         return nod;
}

the output inside Xnode was good value(as expected) , but the second (after return from list()) -was undefined value - ...56923434.
can you tell me what's wrong? why the pointer is undefined in
const Node* n=x.list(); ??

its little urgent!.

thanks a lot.

Nov 22nd, 2009, 11:04 PM	#1
CFlower Newbie Join Date: Nov 2009 Posts: 6 Rep Power: 0	Problem with pointer in function return hi all , i have problem and three days just trying find out, but no result!! i have two diffirent classes: Xnode and Ynode in Ynode, i have method called tree() which it gets as argument - a reference of Xnode (as const) , and it calls its method to return one private variable xx. (Toggle Plain Text) void Ynode::tree(const Xnode& x){ const Node* n=x.list(); std::cout << n->value; } const Node* Xnode::list() const { const Node* nod=xx; std:cout << nod->value; return nod; } void Ynode::tree(const Xnode& x){ const Node* n=x.list(); std::cout << n->value; } const Node* Xnode::list() const { const Node* nod=xx; std:cout << nod->value; return nod; } the output inside Xnode was good value(as expected) , but the second (after return from list()) -was undefined value - ...56923434. can you tell me what's wrong? why the pointer is undefined in const Node* n=x.list(); ?? its little urgent!. thanks a lot. Last edited by Ancient Dragon; Nov 23rd, 2009 at 4:31 AM. Reason: replaced icode tags with code tags

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
global vs local pointer with linked lists	aatyler	C	7	Sep 10th, 2009 7:02 AM
having problem need some help	gentleboy	C++	8	Apr 4th, 2009 9:04 PM
simple pointer array w/ function crash	codylee270	C	8	Dec 4th, 2005 8:28 PM
Return Strings in Function	hbweb500	C#	8	Jul 10th, 2005 8:44 PM
Pointers in C (Part II)	Stack Overflow	C	2	Apr 29th, 2005 10:39 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Application Development > C++

Problem with pointer in function return