title: Return makes integer from pointer without a cast (simple for loop)
body: <p>Why does this C code return the warning in the title?</p>
  
  <pre><code>char n_zeroes(int n) {
    char str[n];
  
    int i;
    for (i = 0; i &lt; n; i++) {
      str[i] = '0';
    }
  
    return str;
  }
  </code></pre>