Creating a class in C++ error

Question

I have a test class, it has nothing in it apart from the bones of a class.

h:

#ifndef TEST_H_
#define TEST_H_


class Test
{
public:
    Test();
};

#endif /* TEST_H_ */

cpp

#include "test.h"

Test::Test()
{
}

And then in my main class I have:

Test *test = new Test();

I also include test.h.

I get the error:

 Undefined reference to Test::Test()

Can anyone tell me where i'm going wrong?

You're not linking your implementation and you're using an unnecessary pointer with unnecessary dynamic memory allocation. C++ also has no main class, it has a `main` function. — chris, Dec 15 '12 at 19:56
In my main class, the class that calls test, it is linked to other classes — panthro, Dec 15 '12 at 20:02
@chris could you elaborate "You're not linking your implementation" — panthro, Dec 15 '12 at 20:04
How do you compile/link it? And again, there's but one class here, and that's `Test`. — chris, Dec 15 '12 at 20:04
Ok, so it's in an IDE. I'd wager you haven't put all three files into a project. — chris, Dec 15 '12 at 20:06
possible duplicate of [gcc linker errors on fedora: undefined reference](http://stackoverflow.com/questions/12376897/gcc-linker-errors-on-fedora-undefined-reference) — Bo Persson, Dec 15 '12 at 20:07

score 0 · Answer 1 · answered Dec 15 '12 at 20:09

0

Figured it out, even after cleaning the project and restarting the IDE it still wouldn't work. I had to manually add in test.h and test.cpp to my config.pri

answered Dec 15 '12 at 20:09

panthro

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Creating a class in C++ error

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