Bug 102382

Stack trace:

Using host libthread_db library "/lib/tls/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -174471488 (LWP 15887)]
[New Thread -178676816 (LWP 15888)]
[Thread debugging using libthread_db enabled]
[New Thread -174471488 (LWP 15887)]
[New Thread -178676816 (LWP 15888)]
[Thread debugging using libthread_db enabled]
[New Thread -174471488 (LWP 15887)]
[New Thread -178676816 (LWP 15888)]
[KCrash handler]
#4  0xf6fe97a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#5  0xf5b0e955 in raise () from /lib/tls/libc.so.6
#6  0xf5b10319 in abort () from /lib/tls/libc.so.6
#7  0x081ab028 in KstHistogram::setNBins (this=0x9671b88, in_n_bins=185)
    at ksthistogram.cpp:306
#8  0x0810497e in KstHsDialogI::edit_I (this=0x957ae90) at kstsharedptr.h:132
#9  0x081068dd in KstHsDialogI::OK (this=0x957ae90) at dataobjectdialog.h:95
#10 0x081069de in KstHsDialogI::qt_invoke (this=0x957ae90, _id=60, 
    _o=0xfef33970) at ksthsdialog_i.moc:121
#11 0xf60bbda0 in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#12 0xf60bc47a in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#13 0xf63f3fc0 in QButton::clicked () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#14 0xf614b9f7 in QButton::mouseReleaseEvent ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#15 0xf60f1cfa in QWidget::event () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#16 0xf605d249 in QApplication::internalNotify ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#17 0xf605d489 in QApplication::notify ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#18 0xf66a54c8 in KApplication::notify () from /usr/lib/libkdecore.so.4
#19 0xf5ffc3de in QETWidget::translateMouseEvent ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#20 0xf5ffac78 in QApplication::x11ProcessEvent ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#21 0xf600d086 in QEventLoop::processEvents ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#22 0xf6072875 in QEventLoop::enterLoop ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#23 0xf60727ce in QEventLoop::exec () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#24 0xf605c44b in QApplication::exec () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#25 0x0814ec96 in main (argc=1, argv=0xfef34e94) at main.cpp:747

That's an abort() and was placed in there on purpose.  It's incomplete code.  (only crashes on debug compiles)

CVS commit by staikos: 

Finish the code here
BUG: 102382
BUG: 102386


  M +8 -8      ksthistogram.cpp   1.56


--- kdeextragear-2/kst/kst/ksthistogram.cpp  #1.55:1.56
@@ -138,4 +138,6 @@ void KstHistogram::commonConstructor(con
   v->setProvider(this);
   _hVector = _outputVectors.insert(HIST, v);
+
+  setDirty();
 }
 
@@ -187,7 +189,5 @@ KstObject::UpdateType KstHistogram::upda
   _W = (_MaxX - _MinX)/double(_NBins);
 
-  for (i_bin = 0; i_bin < _NBins; i_bin++) {
-    Bins[i_bin] = 0;
-  }
+  memset(Bins, 0, _NBins*sizeof(*Bins));
 
   ns = _inputVectors[RAWVECTOR]->length();
@@ -292,5 +293,6 @@ void KstHistogram::internalSetNBins(int 
   }
   Bins = new unsigned long[_NBins];
-  _W = (_MaxX - _MinX)/(double)_NBins;
+  memset(Bins, 0, _NBins*sizeof(*Bins));
+  _W = (_MaxX - _MinX)/double(_NBins);
   _NS = 3 * _NBins + 1;
 
@@ -304,6 +306,4 @@ void KstHistogram::setNBins(int in_n_bin
   internalSetNBins(in_n_bins);
   setDirty();
-  abort(); // FIXME
-  update(); // Have to update here otherwise Bins[] is invalid!
 }