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QPointer: update its document and changes-5.0.0

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QPointer has been un-deprecated and one behavior which slightly different
from Qt4 has been fixed.
see SHA: b8773165d7
and SHA: 497622cafe

Change-Id: I4bae2cce3ebfebd8f59b18b5a6a7a7226b8353b9
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
This commit is contained in:
Debao Zhang 2012-03-16 16:05:09 -07:00 committed by Qt by Nokia
parent 7b26a2cf2e
commit 78e0ab3342
2 changed files with 4 additions and 17 deletions
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13
dist/changes-5.0.0 vendored
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@ -558,10 +558,9 @@ Qt for Windows CE
- QPointer
* QPointer itself is now deprecated, and the implementation of QPointer
has been changed to use QWeakPointer. The old guard mechanism has been
removed. This causes two slight changes in behavior when using
QPointer:
* The implementation of QPointer has been changed to use QWeakPointer. The
old guard mechanism has been removed. This causes a slight change
in behavior when using QPointer:
* When using QPointer on a QWidget (or a subclass of QWidget), previously
the QPointer would be cleared by the QWidget destructor. Now, the QPointer
@ -569,12 +568,6 @@ Qt for Windows CE
cleared). Any QPointers tracking a widget will NOT be cleared before the
QWidget destructor destroys the children for the widget being tracked.
* When constructing a QSharedPointer to take ownership of an object after a
QPointer is already tracking the object. Previously, the shared pointer
construction would not be affected by the QPointer, but now that QPointer
is implemented using QWeakPoiner, constructing the QSharedPointer will
cause an abort().
- QVariant

8
src/corelib/kernel/qpointer.cpp
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@ -56,7 +56,7 @@
destroyed while you still hold a reference to it. You can safely
test the pointer for validity.
Note that Qt 5 introduces two slight changes in behavior when using QPointer.
Note that Qt 5 introduces a slight change in behavior when using QPointer.
\list
@ -66,12 +66,6 @@
cleared). Any QPointers tracking a widget will \b NOT be cleared before the
QWidget destructor destroys the children for the widget being tracked.
\li When constructing a QSharedPointer to take ownership of an object after a
QPointer is already tracking the object. Previously, the shared pointer
construction would not be affected by the QPointer, but now that QPointer
is implemented using QWeakPoiner, constructing the QSharedPointer will
cause an \c abort().
\endlist
Qt also provides QSharedPointer, an implementation of a reference-counted