Help with a missing ';' error

Hello,
I'm having a problem with a line of code that doesn't seem to be working right. I have no idea why it keeps telling me I have a missing ';' before '-'. Any help would be appreciated. Here's the error in Visual Studio:


: error C2143: syntax error : missing ';' before '-'
: error C2433: 'Point::Vector' : 'inline' not permitted on data declarations
: error C2501: 'Point::Vector' : missing storage-class or type specifiers

Code:

#include <iostream>
#include <GL/glut.h>

using namespace std;

class Point{
public: 
	float  x, y, z; 
	inline Point  (){};
	inline Point  (float, float, float);              // initialization of vectors
	inline Point  operator+ (const Point &p) const;   // addition of points
	inline Vector operator- (const Point &p) const;   // subtraction of points (returns vector)	<-- ERROR
}; 
 
class Vector{
public:
	float x, y, z, w;
	inline Vector (){};
	inline Vector (float, float, float);             // initialization of vectors
	inline Vector operator+ (const Vector &v) const; // addition of vectors
	inline Vector operator- (const Vector &v) const; // subtraction of vectors
	inline Vector operator* (const Vector &v) const; // multiplication of vectors
	inline Vector operator* (const Point &p)  const; // multiplication of vector and scalar
	inline Vector operator! () const;                // negation of vectors
};

int main(int argc, char **argv)
{
	return 0;
}// end main

Try moving your Vector related code so that it comes before your Point related code.

Originally Posted by hk_mp5kpdw

Try moving your Vector related code so that it comes before your Point related code.

That will not work because Vector also uses the then undefined class Point. You have the same problem no matter the order.

Leave your code the way it is and above your Point class just forward declare the Vector class like this:

Code:

class Vector;

class Point{
  //etc

Originally Posted by MrWizard

That will not work because Vector also uses the then undefined class Point. You have the same problem no matter the order.

Leave your code the way it is and above your Point class just forward declare the Vector class like this:

Code:

class Vector;

class Point{
  //etc

Oops... yeah I didn't see that reference to the Point object in the Vector class.

Thanks! It worked.