Making classes in openframeworks in 2015 vs

Please try like this:

ofClass.h:

class ofClass {
public:
	ofClass();
	~ofClass();
	float x;
	void test();
};

ofClass.cpp

#include "ofClass.h"

ofClass::ofClass() {

}

ofClass::~ofClass() {

}
void ofClass::test() {
	std::cout << "works";
};

ofApp.h

#pragma once
#include "ofMain.h"
#include "ofClass.h"

class ofApp : public ofBaseApp {

public:
	...

	ofClass MyClass;
};

ofApp.cpp

void ofApp::setup(){
	MyClass.test();
}

You will see works on console window.
Please use markdown syntax for your code.^^