Не могу разобраться как передать корректно передать массив из функции в функцию

//---------------------------------------------------------------------------
 
#pragma hdrstop
 
//---------------------------------------------------------------------------
 
#pragma argsused
#include<stdlib>
#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<iostream.h>
#include <time.h>
using namespace std;
struct MyTDate
{
  unsigned int year;
  unsigned int month;
  unsigned int day;
};
//--------------------------------------------------------------
void init1(MyTDate& date, int year,int month,int day)
{
date.year = year;
date.month = month;
date.day = day;
}
//-------------------------------------------
void init2(MyTDate& date,char *DateStroka){
  date.year = atoi(DateStroka);
  date.month = atoi(DateStroka + 5);
  date.day = atoi(DateStroka + 8);
}
//-------------------------------------------------
void init3(MyTDate& date){
struct tm *theTime;
time_t tim;
time(&tim);
theTime = localtime(&tim);
date.year = (theTime->tm_year + 1900);
date.month = (theTime->tm_mon + 1);
date.day = theTime->tm_mday; ;
}
//---------------------------------------------------
 
char toPChar(MyTDate date){
int year = date.year;
int month = date.month;
int day = date.day;
   int system = 10;
   int system1 = 10;
   int system2 = 10;
   char Lenght[20];
   char Lenght1[20];
   char Lenght2[20];
   char *p ,*q ,*l ;
   p = itoa(year , Lenght , system );
   q = itoa(month , Lenght1 , system1 );
   l = itoa(day , Lenght2 , system2 );
   char str[80];
  strcpy (str,p);
  strcat (str,q);
  strcat (str,l);
  return *str;
 
}
 
 
 
 
void input(struct MyTDate *MyData)
{  int select;
        cout<<"1.Razdelno,2.stroka,3.online?";
        cin>>select;
    int y,m,d;   //for razdelno
    const int max=11 ;      //for lengh
  char DateStroka[max];     //for lengh
 
        switch (select){
   case 1:
   cout<<"write year,month,day razdelno";
   scanf("%d%d%d",&y,&m,&d);
   init1(*MyData,y,m,d);
   break;
        case 2:
        cin.ignore();
        cout<<"pishi year,month,day 4erez tochky";
        cin.get(DateStroka,max);
        init2(*MyData,DateStroka);
        break;
   case 3:
   init3(*MyData);
   break;
 
}
}
 
 
 
void output(struct MyTDate MyData){
char lengh1=toPChar(MyData);
cout<<lengh1;
}
 
int main(int argc, char* argv[])
{          MyTDate Monday;
        input(&Monday);
       
        output(Monday);
      system("PAUSE");
        return 0;
}
//---------------------------------------------------------------------------

char* toPChar(MyTDate date){
int year = date.year;
int month = date.month;
int day = date.day;
   int system = 10;
   int system1 = 10;
   int system2 = 10;
   char Lenght[20];
   char Lenght1[20];
   char Lenght2[20];
   char *p ,*q ,*l ;
   p = itoa(year , Lenght , system );
   q = itoa(month , Lenght1 , system1 );
   l = itoa(day , Lenght2 , system2 );
   char* str = new char[80];
  strcpy (str,p);
  strcat (str,q);
  strcat (str,l);
  return str;
 
}

void output(struct MyTDate MyData){
char* lengh1=toPChar(MyData);
cout<<lengh1;
}

delete [] str;