Can I have two .h files that #include each other?

[mrjohn]

I've got two classes, and each one has a pointer to another. However, I'm having trouble with one of them. Actor.h is acting like the other class doesn't exist.

[code="C++"]//---------------------------------------------------------------------------
// A map tile
//---------------------------------------------------------------------------
#ifndef TILE_H
#define TILE_H

#include <string>
#include "Actor.h"
using namespace std;

class Tile
{
public:
//-----------------------------------------------------------------------
// Default Constructor
Tile();

//-----------------------------------------------------------------------
// Copy Constructor
Tile(const Tile&);

//-----------------------------------------------------------------------
// Destructor
~Tile();

//-----------------------------------------------------------------------
// Assignment Operator
const Tile& operator=(const Tile&);

//-----------------------------------------------------------------------
// Getters/Setters
string getName() const;
void setName(const string);

int getX() const;
void setX(const int);
int getY() const;
void setY(const int);

int getImgX() const;
void setImgX(const int);
int getImgY() const;
void setImgY(const int);

Actor* getOccupant() const;
void setOccupant(Act or*);

private:
//The name, or index of the tile
string name;

//The coordinates of the tile on the map
int x;
int y;

//The coordinates of the tile image within the graphics file
int imgX;
int imgY;

Actor* occupant;
//ArrayList Items
};

#endif[/code]

[code="c++"]//---------------------------------------------------------------------------
// The basic building block for players and monsters
//---------------------------------------------------------------------------
#ifndef ACTOR_H
#define ACTOR_H

#include <string>
#include "Tile.h"
using namespace std;

class Actor
{
public:
Actor();
Actor(Actor&);
~Actor();

protected:
Tile* position;
int health;
int maxHealth;
int strength;
int dexterity;
string name;
int imgX;
int imgY;
string imageName;
};

#endif[/code]

For some reason, I get the error:

1>c:\c++\tilequ est\tilequest\a ctor.h(19) : error C2143: syntax error : missing ';' before '*'
1>c:\c++\tilequ est\tilequest\a ctor.h(19) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\c++\tilequ est\tilequest\a ctor.h(19) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

However, there is no error if I change "Tile* position" to "int* position". It almost seems as if it doesn't recognize Tile as a class. Could this be because they're both #including each other? What am I doing wrong?

[Bala kumar]

Give a forward declaration of one of the class in other file and include the header in *.cpp file.

This should solve ur issue.

[mrjohn]

That worked like a charm. Thanks.

[Scott D Bowen]

You could, and probably should, consider:

#ifndef
#define <something>

...

#endif