title: Getting C++ to compile inside Eclipse
body: <p>Trying to get Eclipse CDT plugin to compile a simple C++ app.  I create a new C++ project, and add 1 file (<code>test.cpp</code>) and code it up like a "Hello, world!" example:</p>
  
  <pre><code>#include &lt;iostream&gt;
  using namespace std;
  
  int main()
  {
      cout &lt;&lt; "Hello, world!";
      return 0;
  }
  </code></pre>
  
  <p>I get highlighted syntax errors on <code>using namespace std</code> and <code>cout</code>, stating (respectively):</p>
  
  <blockquote>
    <p>Symbol 'std' could not be resolved
    Symbol 'cout' could not be resolved</p>
  </blockquote>
  
  <p>I'm sure I didn't install CDT with everything it needed to compile/build a full C++ app. Where could I start looking to figure out what I'm missing?</p>