How To Create Array of Widgets in Qt4?

[vonCZ]

follow-up: if I need to replace the "2" with "getNumber()" like so:

//  ...in  myfile.cpp...
 
  //  QPushButton *pb[2];
 
  QPushButton *pb[    getNumber()   ];
 
  //  or
  //  const int tempNum = getNumber();
  //  QPushButton *pb[tempNum];
 
  for(int a=0; a<2; a++)
  {
    pb[a] = new QPushButton;
    myStack->addWidget(pb[a]);
  }

//  ...in  myfile.cpp...

  //  QPushButton *pb[2];

  QPushButton *pb[    getNumber()   ];

  //  or
  //  const int tempNum = getNumber();
  //  QPushButton *pb[tempNum];

  for(int a=0; a<2; a++)
  {
    pb[a] = new QPushButton;
    myStack->addWidget(pb[a]);
  }

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I get an error: expected constant expression. Is there a way around this?