Seperate files?

[Ch1156]

I want to put my functions in seperate files but i dont know what it goes in, do i put it in a blank file, file, custom file? what extension can it have? is there a certain one? can i just name it any extension?

[sbonnalc]

Hello,

file A.cpp (where you use the function).

#include "MyFunctions.h"

using namespace std;

int main() {
    ...
    mySampleFunction();
    return 0;
}

File Myfunctions.h

#ifndef __MyFunctions__
#define __MyFunctions__

void mySampleFunction();

#endif 

File MyFunctions.cpp

#include "MyFunctions.h"
#include <iostream>

using namespace std;

void mySampleFunction() {
    int i=0;
    i++;
    cout << "i=" << i << endl;
}

with g++ compiler, you just run: g++ A.cpp MyFunctions.cpp A

Hope it answers your question.