hi friends,
i try to set the QPushButton() signal clicked() to connect
a slot changeIndex(int)

so i try signal Mapper so i do
mapping .h
Qt Code: 
  1. #include <QSignalMapper>
  2.  
  3. signals:
  4.         void clicked(int value);
  5.  
  6. public Q_SLOTS:
  7.       void changeIndex(int index);
  8.  
  9. private:
  10.         QSignalMapper *signalMapper;
  11.         int mapValue[10];
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in mapping.cpp
Qt Code: 
  1. /* signal Mapper*/
  2.         mapValue[i] = 2;
  3.         connect(cicsButton, SIGNAL(clicked()), signalMapper, SLOT(map()));
  4.         signalMapper->setMapping(cicsButton, mapValue[1]);
  5.  
  6.         connect(signalMapper, SIGNAL(mapped(int)), this, SIGNAL(clicked(int)));
  7.         connect(this, SIGNAL(clicked(int)), this, SLOT(changeIndex(int)));
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it compiled perfectly but when i run core dumped
when i try execute it gives Segmentation fault ....

i dont know where i done the mistake ...it crashes here ..
Qt Code: 
  1. connect(cicsButton, SIGNAL(clicked()), signalMapper, SLOT(map()));
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please help .... why in run time it give seg. fault ....