[Qt-interest] Can you spot my mistake.

[Thiago Macieira]

Em Segunda-feira 24 Agosto 2009, às 10:11:05, Andrew Hodgkinson escreveu:
> On 24/08/2009 00:12, william.crocker at analog.com wrote:
> >> Your myapp constructor doenst take in a reference to argc
> >
> > That is correct.
> 
> So why *is* QApplication's constructor defined with "int & argc", rather
> than just "int argc"? Isn't that just asking for trouble?

Why do you pass something by reference, instead of by value?

Because it's going to be changed. QApplication and QCoreApplication modify the 
parameter lists to the application, reordering and removing elements that they 
have already parsed.

> > Easy to miss and of dire consequences.
> 
> Out of interest, given it took a long time for the symptoms to surface -
> what were they? Others on the list (including me) may encounter the same
> thing one day and who knows, they may remember this thread.
> 

-- 
Thiago Macieira - thiago.macieira (AT) nokia.com
  Senior Product Manager - Nokia, Qt Development Frameworks
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