Compiler Talk (Again)

Talking to compiler is just like to human being, if you do not understand the dialect then you keep wondering what the other side is trying to say:

error C2663:  'QWidget::move': 1 overloads have no legal conversion for 
'this' pointer

That is from Microsoft VC++ compiler. If you are new, this message hardly tells you anything useful. So, open up MSDN help or fire Google.

But time is money:

error: passing `const Foo' as `this' argument of `void QWidget::move(int, int)' 
discards qualifiers

and the way how GCC spots the same mistakes easily sparks your brain cells and in matter of milliseconds, you know what you've done wrong.