title: Is there a 128 bit integer in C++?
body: <p>I need to store a 128 bits long <a href="http://en.wikipedia.org/wiki/UUID">UUID</a> in a variable. Is there a 128-bit datatype in C++? I do not need arithmetic operations, I just want to easily store and read the value very fast.</p>
  
  <p>A new feature from C++11 would be fine, too.</p>