Problem in Include file

I want to write two program(.h and .cpp) with below code and use .h file in .cpp but when i run it in TC occur below error

.h File

#ifndef ADD_H
#define ADD_H

int add(int x, int y)
{
     return x + y;
}

#endif

.cpp file

#include <iostream.h>
#include <conio.h>
#include "Add.h"

开发者_Python百科void main()
{
    clrscr();
    cout << "Sum of 3 and 4 :" << add(3, 4);
    getch();
}

Error

Unable to open include file "Add.h"

---

There's a few things you should look into:

• the location (search path) of header files is implementation dependent, both for the <> and "" variants - make sure your header file is in that path somewhere.
• you may find that you need to use add.h (all lowercase).
• you shouldn't generally include code in header files (you should put it in a separate C file and just use the header file to list declarations (or the prototype in your case).
• if that's Turbo C you're using (and it probably is, given the clrscr and getch), there's really no excuse not to upgrade to a more modern environment.

---

You probably just need to add -I. flag to you compile line.

---

Add.h is not in the includes path of your compiler.

By the way, iostream.h is deprecated, you should include iostream. Also, cout is in the std namespace, so you need a using namespace std; in your .cpp file or, alternatively, use std::cout instead of cout.