 |  |  |  |  |  |  |  |
linked list prob
Please support our C++ advertiser: Intel Parallel Studio Home
 |
hello,,
i have problem doing a FOR loop in my linked list,, it doesn't start the loop,, i don't know why...
the loop doesn't run,, and i'm sure RESULT is empty when i passed it (function always return TRUE)...
thx...
i have problem doing a FOR loop in my linked list,, it doesn't start the loop,, i don't know why...
class node
{
public:
node(int number, node*nxt):number(number),nxt(nxt){}
int getNumber(){return number;}
void setNumber(int number){this->number=number;}
node* getNxt(){return nxt;}
void setNxt(node *){this->nxt=nxt;}
private:
int number;
node *nxt;
};
bool mergeList(node *&result, node *list1, node *list2)
{
if(!result)
{
for(node *i=list1, *j=list2; i->getNxt()!=NULL || j->getNxt()!=NULL;\
i=i->getNxt(), j=j->getNxt())
{
if(!result)
{
if(i->getNumber() <= j->getNumber())
{
result = i;
result->setNxt(j);
result = j;
result->setNxt(NULL);
}
else
{
result = j;
result->setNxt(i);
result = i;
result->setNxt(NULL);
}
}
else
{
if(i->getNumber() <= j->getNumber())
{
if(i->getNumber() <= result->getNumber())
return false;
else
{
result->setNxt(i);
result = i;
result->setNxt(j);
result = j;
result->setNxt(NULL);
}
}
else
{
if(j->getNumber() <= result->getNumber())
return false;
else
{
result->setNxt(j);
result = j;
result->setNxt(i);
result = i;
result->setNxt(NULL);
}
}
}
}
return true;
}
else
return false;
}thx...
I am living in a mere program...
Is the value of result != NULL when you invoke the function? I don't see you do a new operation on result anywhere in the function.
As you stated, if it is really non-null, the program would crash because you are accessing the member functions of result in a number of places.
As you stated, if it is really non-null, the program would crash because you are accessing the member functions of result in a number of places.
•
•
•
•
Originally Posted by kbshibukumar 
Is the value of result != NULL when you invoke the function? I don't see you do a new operation on result anywhere in the function.
As you stated, if it is really non-null, the program would crash because you are accessing the member functions of result in a number of places.
do i need a new? i already assigned i(a node) to result..
correct me if im wrong..
what i dont understand is why my FOR loop doesn't run..
thx!
I am living in a mere program...
For loops are designed mainly for integer incrementation. They support other datatypes, but this will often result in confusing problems like this. Instead, use a while loop.
C++ Syntax (Toggle Plain Text)
|
Similar Threads
- subset sum (C++)
- pls help. link list prob (C)
- choose a random element from a sequence (C++)
- Linked Lists Help C++ (C++)
- selction sort linked list (C++)
- printing a linked list (C++)
Other Threads in the C++ Forum
- Previous Thread: trying to insert a new node into a linkedlist
- Next Thread: N-ary Tree Destructor
| Thread Tools | Search this Thread |
Latest C++ Posts
- Today's Posts
- Unanswered Threads
Related Forum Features
Tag cloud for C++
api application array arrays based beginner binary bmp c++ c/c++ calculator char char* class classes code compile compiler console conversion convert count data delete deploy dll download dynamic dynamiccharacterarray encryption error file format forms fstream function functions game givemetehcodez graph gui homeworkhelp iamthwee ifstream input int java lib library linkedlist linker list loop looping loops map math matrix memory microsoft newbie news number numbertoword output pointer problem program programming project python random read recursion recursive reference rpg simple sorting string strings temperature template templates test text text-file tree url variable vector video visual visualstudio void win32 windows winsock wordfrequency wxwidgets
