diamond inheritance problem

[gaurav shinde]

hello everyone.

i'm trying to do a diamond inheritance problem.

#include<iostream.h>
#include<string.h>
#include<conio.h>

class STUDENT
{
	protected :

		char *name;
		int age;

	public :

		STUDENT()
		{
			name=new char[strlen("No Name")];
			strcpy(name,"NO Name");
			age=5;
		}

		STUDENT(char *str,int no)
		{			
			name=new char(strlen(str));
			strcpy(name,str);
			age=no;
		}

		virtual void getDetails()
		{
			cout<<"Name : "<<name<<"\nAge : "<<age;
		}

		virtual char * getName()
		{
			return name;
		}

		virtual int getAge()
		{
		return age;
	}
};

class SSC : virtual public STUDENT
{
	protected :

		int ssc_marks;

	public :

		SSC() : STUDENT()
		{
			ssc_marks=1;
		}

		SSC(char * str, int n1, int n2) : STUDENT(str,n1)
		{
			ssc_marks=n2;
		}

		void getDetails()
		{
			STUDENT :: getDetails();
			cout<<"\nSSC Marks : "<<ssc_marks;
		}

		int getSSCMarks()
		{
			return ssc_marks;
		}

};

class HSC : virtual public SSC
{
	protected :

		int hsc_marks;

	public :

		HSC() : SSC()
		{
			hsc_marks=1;
		}

		HSC(char * str, int n1, int n2, int n3) : SSC(str,n1,n2)
		{
			hsc_marks=n3;
		}

		void getDetails()
		{
			SSC :: getDetails();
			cout<<"\nHSC Marks : "<<hsc_marks;
		}

		int getHSCMarks()
		{
			return hsc_marks;
		}
};

class CET : virtual public SSC
{
	protected :

		int cet_marks;

	public :

		CET() : SSC()
		{
			cet_marks=1;
		}

		CET(char * str, int n1, int n2, int n3) : SSC(str,n1,n2)
		{
			cet_marks=n3;
		}

		void getDetails()
		{
			SSC :: getDetails();
			cout<<"\nCET Marks : "<<cet_marks;
		}

		int getCETMarks()
		{
			return cet_marks;
		}
};

class ENGINEERING : public HSC, public CET
{
	protected :
	
		double cpi;

	public :
	
		ENGINEERING() : HSC(),CET()
		{
			cpi=1.0;
		}

		ENGINEERING(char * str, int n1, int n2, int n3, int n4, double n5) : HSC(str,n1,n2,n3), CET(str,n1,n2,n4)
		{
			cpi=n5;
		}

		void getDetails()
		{
			HSC :: getDetails();
			cout<<"\nCET Marks : "<<CET :: getCETMarks()<<"\nCPI : "<<cpi;
		}

		int getCPI()
		{
			return cpi;
		}
};

int main()
{
	clrscr();
	ENGINEERING s2("gaurav",19,85,72,135,8.5);
	s2.getDetails();

	getch();

	return 0;
}

i get output :

*********************************
Name : NO Name
Age : 5
SSC Marks : 1
HSC Marks : 72
CET Marks : 135
CPI : 8.5
*********************************

the values in the bold are for the default constructor which i'm not expecting. I think i'm missing the concept. please help me.

P.S. : I used turbo c++ compiler if it matters in this case.

thanks in advance.

[manasij7479]

Don't Cross post , it feels rather annoying .
http://cboard.cprogramming.com/cplusplus-programming/140214-diamond-inheritance-problem.html

[Disch]

That's not crossposting. That's posting a question on multiple venues. There's nothing wrong with that.

Crossposting would be if he posted in the beginners section and the general section or something.

[manasij7479]

That's not crossposting. That's posting a question on multiple venues. There's nothing wrong with that.

Crossposting would be if he posted in the beginners section and the general section or something.

http://en.wikipedia.org/wiki/Crossposting

You have the inverted information !