title: What are the default character separators for boost::char_separator (for use with boost::tokenizer)?
body: <p>The answer to this question seems like it should be easily obtainable by looking at the Boost documentation for <code>char_separator</code>, or by googling.</p>
  
  <p>However, nowhere can I find the answer to this question: What are the default separators for <code>boost::char_separator</code> (for use with <code>boost::tokenizer</code>)?</p>
  
  <p>Thanks!</p>