Little step by step tutorial to use emscriptem

README.md

Little step by step guide to use emscript

git clone https://github.com/kripken/emscripten
sudo apt-get install clang llmv

cd emscripten
./emcc

cd hellocpp
clang -lstdc++ main.cpp Hello.cpp

./a.out #> Hello, nice to meet you!

../emscriptem/emcc main.cpp Hello.cpp
node a.out.js #> Hello, nice to meet you!

Hello.cpp

#include "Hello.h"
#include <iostream>
using namespace std;

void Hello::greeting()
{
  if (formal)
    cout << "Hello, nice to meet you!" << endl;
  else 
    cout << "What's up?" << endl;
}

void Hello::setFormal(bool f)
{
  formal = f;
}

bool Hello::getFormal()
{
  return formal;
}

Hello.h

#ifndef HELLO_H_
#define HELLO_H_

class Hello
{
private:
  bool formal;
public:
  void greeting();
  void setFormal(bool f);
  bool getFormal();
};

#endif /*HELLO_H_*/

main.cpp

#include "Hello.h"

int main()
{
  Hello *h = new Hello();
  h->setFormal(true);
  h->greeting();
  delete h;
  return 0;
}