Zephyr cpp demo

main.c

/*
 * Copyright (c) 2012-2014 Wind River Systems, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr.h>
#include <misc/printk.h>
#include "test.hpp"

void main(void)
{
	printk("Hello World! %s\n", CONFIG_ARCH);
	hi_from_cpp();
}

test.cpp

#include "test.hpp"
#include <misc/printk.h>

Demo::say_hi(void){
  printk("Hello from C++!\n");
};

void hi_from_cpp(void){
  Demo d;
  d.say_hi();
}

test.hpp

#ifndef _TEST_HPP
#define _TEST_HPP

class Demo{
public:
  void say_hi(void);
};

void hi_from_cpp(void);

#endif