Calling functions from different files.

Hi all,

I'm not very sure about linking but I managed to create a project (using VC++ 6) and all my source are in the specific folder which was created for that project.

Can I know how can I do a function call of another .cpp file that will be compiled and put into the same build (.exe)?

Example:

Code:

---

void accessories(void)
{
        int choice;

        do
        {
                system("cls");

                cout << "==================" << endl;
                cout << "1.) Converter" << endl;
                cout << "2.) Back to Main Menu" << endl;
                cout << "==================" << endl;
               
                cout << "Please select: ";
                cin >> choice;
               
                switch (choice)
                {                               
                        case 1 : cout << "Converter" << endl;
                                // Goes to another file which stores other stuff
                                break;
                }

        } while (choice != 3 );

}

---

The comment in bold is what i meant by function call of another file. So, when it does a function call, it'll read from a function in the converter.cpp file.

Thanks in advance :)

Ok, lets say you have a file named "myfunctions.cpp" that contains

Code:

---

#include <iostream.h>
void SayHello()
{
  cout << "Hello";
}

---

Then in your other file you might have

Code:

---

#include "myfunctions.cpp"
void accessories(void)
{
        int choice;

        do
        {
                system("cls");

                cout << "==================" << endl;
                cout << "1.) Converter" << endl;
                cout << "2.) Back to Main Menu" << endl;
                cout << "==================" << endl;
               
                cout << "Please select: ";
                cin >> choice;
               
                switch (choice)
                {                               
                        case '1': sayhello(); // Goes to another file which stores other stuff
                                break;
                }

        } while (choice != 3 );

}

---

You'll notice its the exact same as calling a function inside the file, except you need to "#include """ the file at the start.

~ Paul

Yeh same thing, I myself like to use HPP files and keep my function declarations there, but he said he wanted to use a cpp file.

Hi stovellp,

It didn't work though I did #include filename.cpp

However, I added the files into the same project workspace, and it automatically reference it when I did a function call which is stored in another file.

I'm using Visual C++ 6. However, I'm wondering, why doesn't it work for #include filename.cpp