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Marc Mutz bcb68461c9 QMap: don't dereference nullptr II 
root(), leftNode() and rightNode() can be nullptr.
These pieces of code happened to work because the first thing lowerBound()
does is

   Node *n = this;
   // ...
   while (n)
     // ...

But that is _after_ dereferencing nullptr, which is undefined behavior.

So, check first, then deref.

This is the completion of I9137bf6e21014cd68404a7e49a748910b1d768cf:
all uses of root(), leftNode() and rightNode() have now been manually checked.

Change-Id: I3fcb958af9362104f94d6eea9c62da2ae07f1d5e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-17 09:31:35 +02:00
bin Merge "Merge remote-tracking branch 'origin/release' into stable" into refs/staging/stable 2013-06-15 22:39:25 +02:00
config.tests Allow Clang to compile without libc++ 2013-09-09 23:04:48 +02:00
dist Merge remote-tracking branch 'origin/stable' into dev 2013-09-07 16:18:32 +02:00
doc Merge branch 'stable' into dev 2013-09-13 18:04:17 +02:00
examples Remove qSort usages from qtbase examples 2013-09-14 13:12:40 +02:00
lib Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
mkspecs qeglfshooksrpi: update vc_dispmanx_element_change_attributes 2013-09-16 23:46:39 +02:00
qmake qmake: added file deployment support for winrt and winphone targets 2013-09-15 18:18:46 +02:00
src QMap: don't dereference nullptr II 2013-09-17 09:31:35 +02:00
tests QObject: allow connecting to functors with a receiver object 2013-09-16 23:46:30 +02:00
tools Disable sqlite for Windows Phone 8 builds 2013-09-15 18:18:46 +02:00
util Doc: Link to external docs in QOpenGLFunctions_* classes 2013-09-09 10:40:37 +02:00
.gitattributes Update the git-archive export options 2012-09-07 15:39:31 +02:00
.gitignore Long live QCommandLineParser! 2013-08-24 21:33:39 +02:00
.qmake.conf Enable -Werror for all of qtbase 2013-09-04 01:50:10 +02:00
.tag Update the git-archive export options 2012-09-07 15:39:31 +02:00
configure Bring back Qt4 X11 session management functionality. 2013-09-13 11:47:06 +02:00
configure.bat get rid of syncqt wrapper scripts 2013-05-13 21:54:48 +02:00
header.BSD Update copyright year in Digia's license headers 2013-01-18 09:07:35 +01:00
header.FDL Update copyright year in Digia's license headers 2013-01-18 09:07:35 +01:00
header.LGPL Update copyright year in Digia's license headers 2013-01-18 09:07:35 +01:00
header.LGPL-ONLY Update copyright year in Digia's license headers 2013-01-18 09:07:35 +01:00
INSTALL INSTALL: Fix URL of Installing Qt documentation 2013-04-11 16:09:07 +02:00
LGPL_EXCEPTION.txt Change copyrights from Nokia to Digia 2012-09-22 19:20:11 +02:00
LICENSE.FDL Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
LICENSE.GPL Add the LICENSE.GPL file to the module referenced from license headers 2012-05-20 22:41:08 +02:00
LICENSE.LGPL Update copyright year in Digia's license headers 2013-01-18 09:07:35 +01:00
LICENSE.PREVIEW.COMMERCIAL Update LICENSE.PREVIEW.COMMERCIAL license 2013-06-03 20:04:26 +02:00
qtbase.pro Merge remote-tracking branch 'origin/stable' into dev 2013-06-27 13:06:38 +02:00
sync.profile put ANGLE includes in a QtANGLE subdir 2013-06-10 21:12:13 +02:00