linking two cpp files whilst using a struct from a header file - c++

Question

I'm having an issue where I am trying to use variables stored in a struct called from a header file. I am able to call to each cpp file ie., call an action from one to another however variables are proving difficult.
Client.cpp
#include <iostream>
#include "Header.h"
#include <vector>;
#include <conio.h>;
#include <string>;
using namespace std;
int main()
{
cout << "Please enter a name: " << flush;
cin >> sNam.sNames;
main2();
return 0;
}
Admin.cpp
#include <iostream>
#include "Header.h"
#include <vector>;
#include <conio.h>;
#include <string>;
using namespace std;
void main2()
{
if (sNam.sNames == sNam1.sNames1)
{
cout << "Correct Entry...\n";
}
else if (sNam.sNames != sNam1.sNames1)
{
cout << "Incorrect Entry...\n";
}
}
Header.h
#pragma once
#include "Admin.cpp"
#include "Client.cpp"
struct Names
{
string sNames;
string sNames1 = "John";
}sNam, sNam1;

Answer 1

don't include cpp files
also sNam and sNam1 are defined in both cpp files, you will have link time error
include Header.h in both Client.cpp and Admin.cpp
then declare what's common in Header.h
#pragma once
// #include "Admin.cpp"
// #include "Client.cpp"
struct Names
{
string sNames;
string sNames1 = "John";
};
extern Names sNam, sNam1;
void main2();
in one of cpp files
#include "Header.h"
Names sNam, sNam1;