Return an string array from a function C++

[hfbroady]

I'm trying to return a string array from a function. Within this function the user will define the legnth of the array and then populate the array. I need the array return to the call so that I can send it to a print function when the time comes. I have include the code that I have, thanks for the help

#include <stdio.h>
#include <iostream>
#include <fstream>
#include "windows.h"
#include <dos.h>

using namespace std;
//int get_Num_Units( );
void output(string& s1);
void get_pressure(double p);
void nuclear();
void industrial();
string *Seri_Num();
int get_Unit_Num();
int get_chameber_Num();

int main()
{

//string unit_one,unit_two,unit_three;
int unit_type;
//double pressure;
//int check=0;

//cout << "Enter the max pressure:" << endl;
//cin >> pressure;
cout << " 1. Nuclear units press 1 " << endl;
cout << " 2. Industrial nuits press 2 " << endl;
cin >> unit_type;


if (unit_type == 1)
{

nuclear();
}
else if (unit_type == 2)
{
void industrial();
}


//cout <<"Your name is: "<< myname << endl;

return 0;
}

//
void nuclear()
{

int units,chamber;
string Seri = "";

chamber = get_chameber_Num();
//units = get_Unit_Num();
Seri = Seri_Num();



}
//This is uesd to get the chamber number
int get_chameber_Num()
{
system("CLS");
int chamber;
char check = 'y';
do
{


cout << "Enter the chamber number: " << endl;
cin >> chamber;

cout << "Is this correct?? " << endl;
cin >> check;

}
while( check != 'y');
system("CLS");
return chamber;
}

// This is to get the total number of units from the user
int get_Unit_Num()
{

int unit_num;
do
{
system("CLS");
cout << "Enter number of units:" << endl;
cin >> unit_num;

if(unit_num > 3)
{

cout << "Enter a number no greater than 3: " << endl;

}




}
while(unit_num > 3);
system("CLS");
return unit_num;
}

// this function is used to load the array and get the serial numbers from the user

string *Seri_Num()
{
string serNum;
int unit_num;
string *unit= new string[unit_num];


do
{
system("CLS");
cout << "Enter number of units:" << endl;
cin >> unit_num;

if(unit_num > 3)
{

cout << "Enter a number no greater than 3: " << endl;

}




}
while(unit_num > 3);
system("CLS");

for (int i=0; i< unit_num; i++) // This loads the array
{
cout << "Enter serial number (8 charecter max) \n";
cin >> serNum;
unit[i] = serNum;
}
return unit; // return the array


}