header file of class...there is smth i dont Know what!!

[ARWA]

hi,am faceing smth that i didnt figure out whats the problem !!!
im realy mad :( becaus my code is prety fine...
this is the code:

//this is the specification of the code
#ifdef c_H
#define c_H
class c{
private:
	struct student{
		int ID,TCRD;
		float GPA;
		string departement,collage;
	};
	student arr[50];
public:
	c(student[]);
	void add(student[]);
	void search(student[]);
	void show(student[]);
	void stat(student[]);
};
#endif  

it didnt appear here but

#define c_H
class c{
private:
	struct student{
		int ID,TCRD;
		float GPA;
		string departement,collage;
	};
	student arr[50];
public:
	c(student[]);
	void add(student[]);
	void search(student[]);
	void show(student[]);
	void stat(student[]);
};

all of this terns to be gray immedaitly when i finish
wrighting #endif
can any one tell me whats the problem and how to avoid it...
thank you in advance.

[Bazzy]

You need #ifndef, otherwise:

#ifdef c_H  // if c_H is already defined
#define c_H // define it again
  //...
#endif  

[ARWA]

what amistake thank you Bazzy verey much :)
ill not do it again....stupet me!