Simple Question Regarding Functions in Separate Files

I'm borderline embarrassed to be posting a question that I know the answer is probably going to be super-trivial to.

All I'm trying to do is call a function from my main file that I've declared/defined in a separate file, but I'm getting a link error when I try to do it and don't know what the problem is.

hello_world.cpp:

Code:

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#include "stdafx.h"#include <stdio.h>


#include "print.h"


int main() {


    printTest();


    return 0;
}

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print.h:

Code:

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void printTest();

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print.cpp:

Code:

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#include <stdio.h>


void printTest()
{
    cout << "test!" << endl;
}

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If someone could put me out of my misery here I'd be most obliged :redface:

Should have included the error I'm getting obv:

Code:

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Error        1        error LNK2001: unresolved external symbol "void __cdecl printTest(void)" (?printTest@@YAXXZ)        hello_world.obj

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Include the print.h file in print.cpp and see what happens

It looks like you forgot to add print.cpp to your project. Your error message is telling you it can't find the implementation.

Jim

Quote:

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Originally Posted by jimblumberg

It looks like you forgot to add print.cpp to your project. Your error message is telling you it can't find the implementation.

Jim

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Yep, that was it - I had assumed creating a new file and putting it in the directory would do the job, thanks for the help!

obviously you're using visual studio. why not just use the project system that's built into it? it handles compiling the proper files automatically.