QWidget *wid = 0;

delete wid;

is legal c++ code.
So make sure when freeing we obey c++ but take into
account that free(NULL) is not legal.

1 files changed, 8 insertions, 4 deletions

diff --git a/library/qpeapplication.cpp b/library/qpeapplication.cpp
index 43a9be5..af00f49 100644
--- a/library/qpeapplication.cpp
+++ b/library/qpeapplication.cpp
@@ -2242,77 +2242,81 @@ void QPEApplication::hideOrQuit()
 #if (__GNUC__ > 2 )
 extern "C" void __cxa_pure_virtual();
 
 void __cxa_pure_virtual()
 {
     fprintf( stderr, "Pure virtual called\n");
     abort();
 
 }
 
 #endif
 
 
 #if defined(OPIE_NEW_MALLOC)
 
 // The libraries with the skiff package (and possibly others) have
 // completely useless implementations of builtin new and delete that
 // use about 50% of your CPU. Here we revert to the simple libc
 // functions.
 
 void* operator new[]( size_t size )
 {
     return malloc( size );
 }
 
 void* operator new( size_t size )
 {
     return malloc( size );
 }
 
 void operator delete[]( void* p )
 {
-    free( p );
+    if ( p )
+        free( p );
 }
 
 void operator delete[]( void* p, size_t /*size*/ )
 {
-    free( p );
+    if ( p )
+        free( p );
 }
 
 
 void operator delete( void* p )
 {
-    free( p );
+    if ( p )
+        free( p );
 }
 
 void operator delete( void* p, size_t /*size*/ )
 {
-    free( p );
+    if ( p )
+        free( p );
 }
 
 #endif
 
 #if ( QT_VERSION <= 230 ) && !defined(SINGLE_APP)
 #include <qwidgetlist.h>
 #ifdef QWS
 #include <qgfx_qws.h>
 extern QRect qt_maxWindowRect;
 void qt_setMaxWindowRect(const QRect& r )
 {
     qt_maxWindowRect = qt_screen->mapFromDevice( r,
                        qt_screen->mapToDevice( QSize( qt_screen->width(), qt_screen->height() ) ) );
     // Re-resize any maximized windows
     QWidgetList* l = QApplication::topLevelWidgets();
     if ( l ) {
         QWidget * w = l->first();
         while ( w ) {
             if ( w->isVisible() && w->isMaximized() ) {
                 w->showMaximized();
             }
             w = l->next();
         }
         delete l;
     }
 }
 #endif
 #endif