ceph/src/boost/libs/mpl/test/single_view.cpp

   1
   2 // Copyright Aleksey Gurtovoy 2001-2004
   3 //
   4 // Distributed under the Boost Software License,Version 1.0.
   5 // (See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8 // See http://www.boost.org/libs/mpl for documentation.
   9
  10 // $Id$
  11 // $Date$
  12 // $Revision$
  13
  14 #include <boost/mpl/single_view.hpp>
  15 #include <boost/mpl/advance.hpp>
  16 #include <boost/mpl/size.hpp>
  17 #include <boost/mpl/begin_end.hpp>
  18 #include <boost/mpl/equal.hpp>
  19 #include <boost/mpl/aux_/test.hpp>
  20
  21 MPL_TEST_CASE()
  22 {
  23     typedef single_view<int> view;
  24     typedef begin<view>::type first;
  25     typedef end<view>::type last;
  26
  27     MPL_ASSERT(( is_same< deref<first>::type, int > ));
  28     MPL_ASSERT(( is_same< next<first>::type, last > ));
  29     MPL_ASSERT(( is_same< prior<last>::type, first > ));
  30
  31     MPL_ASSERT(( is_same< mpl::advance<first, int_<0> >::type, first > ));
  32     MPL_ASSERT(( is_same< mpl::advance<first, int_<1> >::type, last > ));
  33     MPL_ASSERT(( is_same< mpl::advance<last, int_<0> >::type, last > ));
  34     MPL_ASSERT(( is_same< mpl::advance<last, int_<-1> >::type, first > ));
  35
  36     MPL_ASSERT_RELATION( (mpl::distance<first,first>::value), ==, 0 );
  37     MPL_ASSERT_RELATION( (mpl::distance<first,last>::value), ==, 1 );
  38     MPL_ASSERT_RELATION( (mpl::distance<last,last>::value), ==, 0 );
  39
  40     MPL_ASSERT_RELATION( size<view>::value, ==, 1 );
  41
  42     MPL_ASSERT(( equal< view, view::type > ));
  43 }