title: how to format specify a const char * in C?
body: <p>I have this loop:</p>
  
  <pre><code>while (fscanf(file, "%s", word) != EOF)
  </code></pre>
  
  <p>but <code>word</code> here is a <code>const char *</code> not <code>char *</code>
  so how should I change <code>%s</code>?</p>