Question

I am having problems here if I want to check if eerste points to nothing I get

Blockquote

Unhandled exception at 0x003921c6 in
Bank.exe: 0xC0000005: Access violation
reading location 0xccccccd0.

and I am kinda wondering why he justs skips the if statement or doens’t stop when the object eerste points to nothing

Bank::Bank()
{
 LijstElement *eerste = NULL;
 LijstElement *laatste = NULL;
}

 Rekening * Bank::getRekening(int rekNr)
{

 if(NULL != eerste)
 {
  LijstElement *nummer = eerste;
  while(nummer->volgende!= NULL)
  {
   Rekening *een = nummer->getRekening();
   if(een->getRekNr()==rekNr)
    {
     return een;
    }
   else
   {
    nummer = nummer->volgende;
   }
  }
 }
 return NULL;   
}

Answer 1

I think you have to change

Bank::Bank()
{
    eerste = NULL;
    laatste = NULL;
}

because they are probably declared in your class as member variables and you’re declaring them as local variables.

As Fred Larson proposed, you can also use initialization lists.

Bank::Bank() : eerste(NULL), laatste(NULL)  
{
//whatever else you are planning to do in your constructor
}