Thread: Arghhhh! LNK 2005 error.

I didn't look at your zip, but those errors are usually either because you accidentally copied the definition of those functions into multiple places, or because you implemented the functions inside of a header file.

Where do you define (not declare) the set_open_back_unrounded(class phone &) function?

Ohmegosh, it worked. Thank you, thank you, thank you.

But I don't get it.

Originally my functions were placed in a namespace of header called "phone_initialize.h".

Code:

namespace pis
{
	void set_whatever_a(argument){body;}
	void set_whatever_b(argument){body;}

	and on and on
}

They compiled before, but I fooled around with the placement of some stuff that used these functions and then it gives me external link errors. What I actually did was, I abstracted some bit of code that I had in main and placed it in some other source file.

So I took your advice and completely removed the functions under the namespace pis and moved it into the source file "phone_initialize.cpp".

It compiled but now I'm worried. I mean, there are no function declarations in the original header but the compiler is still finding the function definition and compiling it. Shouldn't I have at least left the declarations in the header?

Oh, well, I'll save that for a later head-racking.

Again, thank you, merci, danke schoen, gracias, takk, arigato, gamsahabnida, and a thousand other thanks.

The namespace has nothing to do with it. You placed the definitions inside a header file, which is wrong. The solution is to put the definitions inside a namespace in the cpp file:

Code:

//header

namespace pis
{
    // prototype
    void set_whatever_a(argument);
}

Code:

// source

namespace pis
{
    // definition
    void set_whatever_a(argument){body;}
}

You can put things into a namespace from as many different files as you want.