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====== Hello World on the Robotino ======

This tutorial details how to create a cpp hello world program directly on the robotino.

===== Prerequisites =====

This tutorial assumes you have ccmake installed on your robotino.

You will also need an ssh connection to your robotino.

**recommended:** complete the [[robotino_api2_setup|Robotino API2 Setup]] tutorial before attempting this one

===== Hello World =====

ssh into your robotino as user robotino (pass: robotino)

go to your home directory by entering 

  cd

now create a director to store your files

  mkdir dasl_tutorials/hello

{{dylanw:ccmake.png}}

make it your current directory

  cd dasl_tutorials/hello

use vim to create a new file 

  vim main.cpp

and enter the following code

<code c++ helloWorldRobotino.cpp>
#include <stdio.h>

int main() 
{
    printf("hello world.\n");
    return 0;
}
</code>

save by entering
  <esc> :w

and quit vim

  <esc> :q

{{dylanw:vim_cpp.png}}

create another file called CMakeLists.txt with the same method.  The body of the file should be:

    cmake_minimum_required(VERSION 2.6)
    project(MyProject)
    add_executable(hello main.cpp)

Note: you may want to change the version to your current version of ccmake

now create your make file by entering

  ccmake ./

press '''c''' to configure '''c''' again then '''g''' to generate

{{dylanw:ccmake.png}}

now your makefile is create and you can actually compile your program using

  make

type

  ls

to see the files in the current directory.  you should see main.cpp CMakeLists.txt and hello

try to run your program by 

  ./hello

{{dylanw:success.png}}