Re: [Valgrind-users] Many false positives "Mismatched free() / delete / delete []"

[<pa...@fr...>]

----- Original Message -----
> On jeudi 22 décembre 2016 06:46:44 CET David Chapman wrote:
> > If this is new valgrind behavior, I wouldn't discount a bug in its
> > code
> 
> It certainly looks like one :)
> 
> > but the developers (not me) would need to know what the QVBoxLayout
> > constructor is doing.  If it's inlined, the call stack might point
> > fingers at the calling function rather than the true offender.
> 
> It is not inline, and my call stack is from a non-optimized debug
> build
> anyway.
> 
> > Does the QVBoxLayout constructor allocate any memory inside?
> 
> Yes but not with new[].
> 
> QVBoxLayout::QVBoxLayout(QWidget *parent)
>     : QBoxLayout(TopToBottom, parent)
> {
> }
> 
> QBoxLayout::QBoxLayout(Direction dir, QWidget *parent)
>     : QLayout(*new QBoxLayoutPrivate, 0, parent)
> {
>     d->dir = dir;
> }

It doesn't much look like it, but there could be calls to new [] in the QBoxLayoutPrivate ctor, or its parent classes.

Do you know if global new/delete are replaced, or if there are any class overloads?

A+
Paul