title: std::uniform_real_distribution inclusive range
body: <p>C++11 std::uniform_real_distribution( -1, 1 ) gives numbers in the range [-1,1).</p>
  
  <p>How would you get a uniform real distribution in the range [-1,1]?</p>
  
  <p>Practically it probably doesn't matter but logically I'm trying to select a value in the inclusive range.</p>