[Interest] Signal with QString argument from another thread.

[Thiago Macieira]

On Tuesday 06 October 2015 23:54:30 Igor Mironchik wrote:
> > And QString, like other Qt value classes, should be treated like an int.
> > You're not asking that question about an int argument, so you shouldn't
> > have to ask about a QString argument.
> 
> Not sure that I understood you correctly...
> 
> If I pass argument to the signal by const-ref and signal posted to 
> another thread then data will be fully copied? Or just a const-ref will 
> be initialized in the event? And what will be if signal and slot in one 
> thread? Will be data copied fully too or signal will just invoke slot 
> and pass him const-ref?

const-ref and by-value are the exact same for the signal-slot system. What 
applies to one, applies to the other.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center