[marupio]

Why does setSize() trash my data?

I have:

class: equationMaster
{
    List<equation> eqns_;
}

Where equation is itself a list:

class: equation
:
    public List<operation>
{
    // null constructor, friend operators << and >>
   // construct from components and IStream
}

and operation is

class: operation
{
   // four labels defined, some with enumeration
   // null constructor, friend operators << and >>
   // construct from components and IStream
}

Now, when I do this:

eqns_.setSize(eqns_size() + 1);

it trashes my operation list.

Anyone with any ideas what is going on? Have I overused lists?

Any assistance would be appreciated...

-Dave

[olesen]

Originally Posted by marupio

it trashes my operation list.

Anyone with any ideas what is going on? Have I overused lists?

Any assistance would be appreciated...

I'd guess that the copy operation in setSize() might be causing issues.
Without actually knowing anything about your classes, you might nonetheless take a look at PtrList and see it that makes more sense for some of your operations.

[marupio]

Thanks Mark. (I thought it might be a constructor issue.) I did switch to PtrList and it is behaving now.