[RESOLVED] Derived class: hot to get mad!!!!

[jubstuff]

Hi all! I'm trying to get this (i must admit: stupid) program to function properly..but i can't. This is what i get:

persona.h:12: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
persona.h:12: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
persona.h: In constructor ‘Persona::Persona(char, char, int)’:
persona.h:13: error: invalid conversion from ‘const char’ to ‘const char*’
persona.h:13: error:   initializing argument 1 of ‘size_t strlen(const char*)’
persona.h:13: error: invalid conversion from ‘char*’ to ‘char’
persona.h:14: error: invalid conversion from ‘char’ to ‘char*’
persona.h:14: error:   initializing argument 1 of ‘char* strcpy(char*, const char*)’
persona.h:14: error: invalid conversion from ‘const char’ to ‘const char*’
persona.h:14: error:   initializing argument 2 of ‘char* strcpy(char*, const char*)’
persona.h: In destructor ‘Persona::~Persona()’:
persona.h:20: error: type ‘char’ argument given to ‘delete’, expected pointer
studente.h: At global scope:
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
studente.h: In constructor ‘Studente::Studente(char, int, char, int, int, char)’:
studente.h:11: error: invalid conversion from ‘const char’ to ‘const char*’
studente.h:11: error:   initializing argument 1 of ‘size_t strlen(const char*)’
studente.h:12: error: invalid conversion from ‘const char’ to ‘const char*’
studente.h:12: error:   initializing argument 2 of ‘char* strcpy(char*, const char*)’
borsista.h: At global scope:
borsista.h:9: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
borsista.h:9: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
borsista.h:9: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
personamain.cpp: In function ‘int main()’:
personamain.cpp:7: error: invalid conversion from ‘const char*’ to ‘char’
personamain.cpp:7: error:   initializing argument 1 of ‘Persona::Persona(char, char, int)’
personamain.cpp:7: error: invalid conversion from ‘const char*’ to ‘char’
personamain.cpp:7: error:   initializing argument 2 of ‘Persona::Persona(char, char, int)’
personamain.cpp:8: error: invalid conversion from ‘const char*’ to ‘char’
personamain.cpp:8: error:   initializing argument 1 of ‘Studente::Studente(char, int, char, int, int, char)’
personamain.cpp:8: error: invalid conversion from ‘const char*’ to ‘int’
personamain.cpp:8: error:   initializing argument 2 of ‘Studente::Studente(char, int, char, int, int, char)’
personamain.cpp:8: error: invalid conversion from ‘const char*’ to ‘char’
personamain.cpp:8: error:   initializing argument 6 of ‘Studente::Studente(char, int, char, int, int, char)’
personamain.cpp:9: error: invalid conversion from ‘const char*’ to ‘char’
personamain.cpp:9: error:   initializing argument 1 of ‘Borsista::Borsista(char, int, char, int, int, char, long int)’
personamain.cpp:9: error: invalid conversion from ‘const char*’ to ‘int’
personamain.cpp:9: error:   initializing argument 2 of ‘Borsista::Borsista(char, int, char, int, int, char, long int)’
personamain.cpp:9: error: invalid conversion from ‘const char*’ to ‘char’
personamain.cpp:9: error:   initializing argument 6 of ‘Borsista::Borsista(char, int, char, int, int, char, long int)’
persona.h:12: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
persona.h:12: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
persona.h: In constructor ‘Persona::Persona(char, char, int)’:
persona.h:13: error: invalid conversion from ‘const char’ to ‘const char*’
persona.h:13: error:   initializing argument 1 of ‘size_t strlen(const char*)’
persona.h:13: error: invalid conversion from ‘char*’ to ‘char’
persona.h:14: error: invalid conversion from ‘char’ to ‘char*’
persona.h:14: error:   initializing argument 1 of ‘char* strcpy(char*, const char*)’
persona.h:14: error: invalid conversion from ‘const char’ to ‘const char*’
persona.h:14: error:   initializing argument 2 of ‘char* strcpy(char*, const char*)’
persona.h: In destructor ‘Persona::~Persona()’:
persona.h:20: error: type ‘char’ argument given to ‘delete’, expected pointer
persona.h:12: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
persona.h:12: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
persona.h: In constructor ‘Persona::Persona(char, char, int)’:
persona.h:13: error: invalid conversion from ‘const char’ to ‘const char*’
persona.h:13: error:   initializing argument 1 of ‘size_t strlen(const char*)’
persona.h:13: error: invalid conversion from ‘char*’ to ‘char’
persona.h:14: error: invalid conversion from ‘char’ to ‘char*’
persona.h:14: error:   initializing argument 1 of ‘char* strcpy(char*, const char*)’
persona.h:14: error: invalid conversion from ‘const char’ to ‘const char*’
persona.h:14: error:   initializing argument 2 of ‘char* strcpy(char*, const char*)’
persona.h: In destructor ‘Persona::~Persona()’:
persona.h:20: error: type ‘char’ argument given to ‘delete’, expected pointer
studente.h: At global scope:
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
studente.h: In constructor ‘Studente::Studente(char, int, char, int, int, char)’:
studente.h:11: error: invalid conversion from ‘const char’ to ‘const char*’
studente.h:11: error:   initializing argument 1 of ‘size_t strlen(const char*)’
studente.h:12: error: invalid conversion from ‘const char’ to ‘const char*’
studente.h:12: error:   initializing argument 2 of ‘char* strcpy(char*, const char*)’
persona.h:12: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
persona.h:12: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
persona.h: In constructor ‘Persona::Persona(char, char, int)’:
persona.h:13: error: invalid conversion from ‘const char’ to ‘const char*’
persona.h:13: error:   initializing argument 1 of ‘size_t strlen(const char*)’
persona.h:13: error: invalid conversion from ‘char*’ to ‘char’
persona.h:14: error: invalid conversion from ‘char’ to ‘char*’
persona.h:14: error:   initializing argument 1 of ‘char* strcpy(char*, const char*)’
persona.h:14: error: invalid conversion from ‘const char’ to ‘const char*’
persona.h:14: error:   initializing argument 2 of ‘char* strcpy(char*, const char*)’
persona.h: In destructor ‘Persona::~Persona()’:
persona.h:20: error: type ‘char’ argument given to ‘delete’, expected pointer
studente.h: At global scope:
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
studente.h:10: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
studente.h: In constructor ‘Studente::Studente(char, int, char, int, int, char)’:
studente.h:11: error: invalid conversion from ‘const char’ to ‘const char*’
studente.h:11: error:   initializing argument 1 of ‘size_t strlen(const char*)’
studente.h:12: error: invalid conversion from ‘const char’ to ‘const char*’
studente.h:12: error:   initializing argument 2 of ‘char* strcpy(char*, const char*)’
borsista.h: At global scope:
borsista.h:9: error: default argument for parameter of type ‘char’ has type ‘const char [1]’
borsista.h:9: error: default argument for parameter of type ‘char’ has type ‘const char [2]’
borsista.h:9: error: default argument for parameter of type ‘char’ has type ‘const char [1]’

The program files are:

persona.h

//file: persona.h

#ifndef PERSONA_h
#define PERSONA_h
#include<iostream>
#include<string>

using namespace std;

class Persona{
	public:
		Persona(const char NAME="", char SEX="M",int AGE=0){
			nome = new char[strlen(NAME)+1];
			strcpy(nome,NAME);
			sesso = SEX;
			eta = AGE;
		}
		~Persona() {
			cout << "distruttore Persona invocato\n";
			delete[] nome;
		}
		void chisei() {
			cout << "sono una Persona di nome " << nome << " ho " << eta << " anni e sono " << sesso << endl;
		}
	protected:
		char *nome;
		char sesso;
		int eta;
};


#endif

studente.h

//file studente.h 

#ifndef STUDENTE_H
#define STUDENTE_H

#include "persona.h"

class Studente:public Persona{
	public:
		Studente(const char NAME="", int SEX=0, char AGE="M", int EXAM=0, int MATR=1111111,const char FACULTY=""):Persona(NAME,SEX,AGE){
		facolta = new char[strlen(FACULTY)+1];
		strcpy(facolta,FACULTY);
		esami = EXAM;
		matricola = MATR;
		}
		~Studente() {
			cout << "Dealloco Studente...\n";
			delete []facolta;
		}
		void chisei(){
			Persona::chisei();
			cout << "In più sono uno studente di " << facolta << " matricola " << matricola << " e " << esami << " esami\n";
		}
	protected:
		int esami;
		int matricola;
		char *facolta;
};


#endif

borsista.h

//file borsista.h

#ifndef BORSISTA_H
#define BORSISTA_H
#include "studente.h"

class Borsista:public Studente{
	public:
		Borsista(const char NAME="", int SEX=0, char AGE="M", int EXAM=0, int MATR=1111111,const char FACULTY="", long BAG=0):Studente(NAME,FACULTY,AGE,SEX,EXAM,MATR){
			borsa = BAG;
		}
		~Borsista(){
			cout << "dealloco borsista\n";
		}
		void chisei(){
			Studente::chisei();
			cout << " e sono anche un borsista, con una borsa di " << borsa << endl;
		}
	protected:
		long borsa;
};



#endif

personamain.cpp

#include <iostream>
#include "borsista.h"

using namespace std;

int main() {
	Persona primo("Giorgio","M",15);
	Studente secondo("Valeria","F",20,5,121232,"Storia");
	Borsista terzo("giustino","M",22,9,123424,"Ingegneria");
	primo.chisei();
	secondo.chisei();
	terzo.chisei();
	return 0;
}

Please help me!!!!! :AAAAAAAAAAAAA