title: What does "wrapping" mean in programming?
body: <p>In programming literature and on internet in general I noticed frequent use of term <em>"wrapping"</em>.</p>
  
  <p>For example "to wrap library in classes" or to "wrap database". Is that official in programming or just a slang ? And what is the best way to describe it ?</p>
  
  <p>Thanks</p>