title: How can I replace percent sign (%) with two %'s?
body: <p>I want to try replace a percentage sign in a char array with two <code>%%</code> signs. Because a <code>%</code> sign causes problems, if I write as output char array. Therefore percentage sign must be replaced with two <code>%%</code> signs without using string.</p>
  
  <pre><code>// This array causes dump because of '%'
  char input[] = "This is a Text with % Charakter";
  //Therefore Percent Sign(%) must be replaced with two %%. 
  </code></pre>