forbids declaration of QHash with no type

Dear,

I'm trying to solve this error... I cannot understand what is going wrong... please help me to solve it :confused: ! Probably it is only a stupid syntatical error but I cannot see it...

Here is the code:

Code:

---

#ifndef _STA_SCENARIO_MANOEUVREPLAN_H_
#define _STA_SCENARIO_MANOEUVREPLAN_H_
 
#include "scenarioobject.h"
 
enum StaManoeuvreType
{
	STA_MANOEUVRE_DURATION							= 1000,
	STA_MANOEUVRE_DELTAV							= 1001,
	STA_MANOEUVRE_V_POSITION						= 1002,
	STA_MANOEUVRE_R_POSITION						= 1003,
	STA_MANOEUVRE_V_R_POSITION						= 1004,
	STA_MANOEUVRE_V_R_DURATION						= 1005
};
 
class ScenarioManoeuvre;
 
class ScenarioManoeuvrePlan : public ScenarioObject
{
public:
	ScenarioManoeuvrePlan();
    ~ScenarioManoeuvrePlan();
 
    const QList<ScenarioManoeuvre*>& manoeuvres() const { return m_manoeuvres; }
    void setName(QString name){m_name=name;}
    void addManoeuvre(ScenarioManoeuvre* manoeuvre);
 
    QString name()const {return m_name;}
    QList<ScenarioManoeuvre*> manoeuvresList() const{return m_manoeuvres;}
    QHash<QString, StaManoeuvreType>* typeMap()const {return hash;}
    QHash<QString, QString>* nameMap()const {return hashName;}
    QStringList inputsName()const {return inputs;}
 
    virtual QTreeWidgetItem* createItemSelf(QTreeWidgetItem* parent);
    virtual void createItemContents(QTreeWidgetItem* item);    
 
private:
	QString m_name;
	QList<ScenarioManoeuvre*> m_manoeuvres;
	QHash<QString, StaManoeuvreType>* hash;
	QHash<QString, QString>* hashName;
	QStringList inputs;
};
 
#endif // _STA_SCENARIO_MANOEUVREPLAN_H_

---

Thank a lot

:D

Please post the error that you see while compiling.

ok....

I solve the problem including:

Code:

---

#include<QHash>
#include<QStringList>

---

;)

but I have one more question...
Before I added "hash" and "hashName", I had only QString and QList object in my header file. Why I don't have to include this classes? It worked withouth the declaration

Code:

---

#include <QString>
#include <QList>

---

Why QHash and QStringList need it?

Thanks

If you use a (any) Qt-class, in a header you usually need to include its header.

Exceptions are:
* if you only use a pointer or reference or return type, a forward declaration is enough.

Code:

---

class X
{
   QString s; // needs include
   QTreeView *tv; // forward decl "class QTreeView;" is enough
   QHash<QString,QList<int> > hash; // needs includes for QString, QList and QHash
   QString getName() const; // forward declaration enough
};

---

Sometimes you get away without including a header, namely if you include other headers that in turn include the header you would need.
Still, I consider it good practice to explicitly include any header of a class that is explicitly used in a class.

In your case: QStringList inherits QList. Therefore its header must include the QList-header. Thus you do not have to include it.
QString is part of QStringList as well.

HTH

Great!

Now I understand!

Thank you so much!

:D