vector of vector

[jacek]

if you referred to this, don't compile...

If you want a vector of vectors of pointers to spin boxes you need:

vector<QSpinBox*> sbx;
vector< vector<QSpinBox*> > sb;
sb.push_back(sbx); // no error

vector<QSpinBox*> sbx;
vector< vector<QSpinBox*> > sb;
sb.push_back(sbx); // no error

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[kroenecker]

Jacek,

How does that work again? When setting an object equal to another object in c++, it doesn't call the copy constructor, but rather the operator =, right? So in either case we can't "copy" widgets? That is, even when evoking the copy constructor?

[fullmetalcoder]

Jacek,

How does that work again? When setting an object equal to another object in c++, it doesn't call the copy constructor, but rather the operator =, right? So in either case we can't "copy" widgets? That is, even when evoking the copy constructor?

widgets can't be copied! All you can use is a pointer (or a reference depending what you want to do, but a pointer is better anyway) to them that can be used to modify them.

[jacek]

So in either case we can't "copy" widgets?

Yes, you can't copy widgets, but here you have a vector of pointers to widgets.