Thread: Linked list problem

my program keeps charshing before it dose anything, ive narrowed the problem down to this section of code.

if(next!=TPartTail) next->Draw();

It should call the Draw function of the object pointed to by next if its not TPartTail, when the program start next gets initilized to TPartTail. I dont understand what could possable be wrong, but if I remove the logical checks for TPartTail then the program runs.

TPartTail is a global variable that only appears in one source file.

its declared as

TPartNode* TPartTail = new TPartNode;

And the default constructor for TPartNode is

TPartNode::TPartNode() {
next = TPartTail;
prev = TPartHead;
}

any thoughts? Need more code/explanation?

next and TPartTail are the same type, and the only way I can get my code to run is if I remove the logical check.


I figured it out now, the order things were being done was the problem. I put in an init function instead of useing a constructor (not all the variables that were being used were defined yet) and it works fine.