Copying an QList into a new, sorted QList.

[Thomas Wrobel]

I wish to have a function return a sorted version of a QList. (The QList is of a custom-type called an "arblip")

I have two ideas how to do this;

a) Either I could copy the whole array, and use qSort, returning the copy.
or
b) Iterate though the items in one list, copying them into a new list.

I'm not sure which is the better approach, and having tried both, I can get neither to work. I suspect its because I'm a neewbie and not understanding how to clone an array, or am getting my pointers mixed up, or both.

My attempt at using qsort was basicaly;

bool compareNames(arblip& s1,arblip& s2)
{
  QDateTime temp1=s1.getLastUpdateTime();
  QDateTime temp2=s2.getLastUpdateTime();
 
  return (temp1<temp2);
}
 
QList<arblip> arbliparray::getallblips_orderedbytimestamp(){
 
    //create temp list;
    QList <arblip> orderedarray;
 
    orderedarray=arblipStore;
    qSort(orderedarray.begin(),orderedarray.end(),compareNames);
 
    return orderedarray;
}

bool compareNames(arblip& s1,arblip& s2)
{
  QDateTime temp1=s1.getLastUpdateTime();
  QDateTime temp2=s2.getLastUpdateTime();

  return (temp1<temp2);
}

QList<arblip> arbliparray::getallblips_orderedbytimestamp(){

    //create temp list;
    QList <arblip> orderedarray;

    orderedarray=arblipStore;
    qSort(orderedarray.begin(),orderedarray.end(),compareNames);

    return orderedarray;
}

To copy to clipboard, switch view to plain text mode 

Which compiled, but once that part of the code was triggered, exited with a "1073741819" code.
I suspected its probably that = statement.

I had a similar issue with trying method b, this time crashing when I tried to assign a arblip object from one list to another.

...arblip currentblip = *arblip_iterator;
 orderedarray.append(currentblip); ...

...arblip currentblip = *arblip_iterator;
 orderedarray.append(currentblip); ...

To copy to clipboard, switch view to plain text mode 

I think my problem is not knowing how to make a complete copy of an object, rather then merely creating a new pointer to it?
I want to return a ordered copy of the list, and for the original list to remain private and untouched.