stdio.h fonksiyonlarıyla class serileştirmek

#include<iostream>
usingnamespace std;
classsinif{
public:
 char *isim, *soyisim;
 sinif(char* p,char *c){
 isim = p;
 soyisim = c;
 }
 sinif(){}
 }x;
int main(){
 char a[55], b[55]; cin >> a >> b;
 sinif nesne(a, b);
 FILE *k = fopen("deneme.dat", "a+");
 fwrite(&nesne, sizeof(sinif), 1, k);
 fflush(k);
 fclose(k);
 k = fopen("deneme.dat", "r");
 fread(&x, sizeof(sinif), 1, k);
 cout << x.isim << " " << x.soyisim << endl;
 char y; cin >> y;
 return 0;
 }