title: Bison grammar for collecting arguments
body: <p>I have a bison grammar for collecting arguments of a function. This is what it is so far:</p>
  
  <pre><code>args: arg               {$$ = intArray($1);} //pseudo-code function
      | args arg          {$$ = $1 + $2;}       //pseudo-code array addition
  arg : NUM               {$$ = $1;}
      | exp               {$$ = $1;}
  </code></pre>
  
  <p>How can I create an array of integers without a fixed length that can be used like a normal C array in Bison?</p>