[Development] QTextStream::readLine(0) is an ambiguous overload in 5.5

Andreas Aardal Hanssen andreas at hanssen.name
Mon May 18 11:35:22 CEST 2015

2015-05-18 11:10 GMT+02:00 Christian Kandeler <
christian.kandeler at theqtcompany.com>:

> On 05/17/2015 09:57 PM, Giuseppe D'Angelo wrote:
> > On Sun, May 17, 2015 at 9:55 PM, Smith Martin
> > <Martin.Smith at theqtcompany.com> wrote:
> >> How do you get bitten by an out-reference?
> > As usual, because at call site I didn't realize the argument was
> > actually being modified. Compare
> > doSomething(param1, param2, param3);
> > doSomething(&param1, param2, param3);
> > which one is likely to be modifying arguments?
> Both are equally likely to, unless you are a C programmer.

Qt convention is to promote pointers for out parameters to make it
immediately clear that your input can be modified. Out references, or
non-const reference parameters, have traditionally been discouraged because
they make the code harder to read. It's not about what's proper C/C++.

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