iterate through QHash

[rosenth]

I made a loop :

QHashIterator<QString, QString> i(customers);
             while (i.hasNext())
            {
 
                QString dir=(i.value().left(1)=="-")?"1":"0";
...

QHashIterator<QString, QString> i(customers);
             while (i.hasNext())
            {

                QString dir=(i.value().left(1)=="-")?"1":"0";
...

To copy to clipboard, switch view to plain text mode 

but runtime error is on i.value():

The inferior stopped because it received a signal from
the operating system.
signal name: SIGABRT
signal meaning: Aborted

The inferior stopped because it received a signal from
the operating system.
signal name: SIGABRT
signal meaning: Aborted

To copy to clipboard, switch view to plain text mode 

whats problem?

[rosenth]

forget to add:

i.next();

i.next();

To copy to clipboard, switch view to plain text mode 

[Lykurg]

Hint: Instead of left() better use QString::startsWith() (or QString::at()) since their performance is more effective.

[SixDegrees]

Try inspecting your hash table to see if what it contains makes sense. Try walking through it using hash.keys() instead of using an iterator; if that works, the problem lies with the iterator, not your hash table.