ceph/src/boost/libs/type_traits/doc/conditional.qbk

   1 [/
   2   Copyright 2010 John Maddock.
   3   Distributed under the Boost Software License, Version 1.0.
   4   (See accompanying file LICENSE_1_0.txt or copy at
   5   http://www.boost.org/LICENSE_1_0.txt).
   6 ]
   7
   8 [/===================================================================]
   9 [section:conditional conditional]
  10 [/===================================================================]
  11
  12
  13 __header ` #include <boost/type_traits/conditional.hpp>` or ` #include <boost/type_traits.hpp>`
  14
  15     namespace boost {
  16       template <bool B, class T, class U>  struct __conditional;
  17     }
  18
  19 If B is true, the member typedef type shall equal T. If B is false, the member typedef type shall equal U.
  20
  21 [endsect]
  22