c++ - QMutableStringListIterator's QStringList "not a type"? -

i have qmutablestringlistiterator want use iterate through qstringlist, keep getting error in .h file says qstringlist not type. why?

myclass.h

#ifndef myclass_h #define myclass_h  #include <qdockwidget> #include <qlist> #include <qstringlist> #include <qmutablestringlistiterator>  namespace ui { class myclass; }  class myclass: public qdockwidget {   q_object  public:   explicit myclass(qwidget* parent = 0);   void somefunc(qstring message);   ~myclass();  private:   ui::messages* ui;   qstringlist mylist;   qmutablestringlistiterator iterator(mylist); // errors here. "mylist not type" };  #endif // myclass_h 

myclass.cpp

#include "myclass.h" #include <qstring> #include <qdebug> #include <qcoreapplication>  myclass::myclass(qwidget* parent) :   qdockwidget(parent),   ui(new ui::myclass),   iterator(mylist) {   ui->setupui(this); }  myclass::~myclass() {   delete ui; }  void myclass::somefunc(qstring message) {    mylist.append(message);   qdebug() << mylist.length();  } 

i fixed it. here's .h file should like:

private:   ui::messages* ui;   qstringlist mylist;   qmutablestringlistiterator iterator; // not give mylist here };