Pass data as code
<p>I'm trying to interpret a formula given as input:</p>

<pre><code>y= y argv[1][s] 5;
</code></pre>

<p>where <code>argv[1][s]</code> can be <code>+ - *</code> for example.<br>
    y= y+5;<br>
    y= y*5;  </p>

<p>I could use a check for specific values, but it's more interesting to find out why this doesn't work.</p>

<blockquote>
  <p>error C2146: syntax error : missing
  ';' before identifier 'argv'</p>
</blockquote>

<p>I think what happens is that <code>+</code> is passed as <code>'+'</code> so no operation results. Is there a way to unquote this?</p>
