ceph/src/boost/libs/numeric/ublas/doc/samples/vector_slice.cpp

   1 //
   2 //  Copyright (c) 2000-2002
   3 //  Joerg Walter, Mathias Koch
   4 //
   5 //  Distributed under the Boost Software License, Version 1.0. (See
   6 //  accompanying file LICENSE_1_0.txt or copy at
   7 //  http://www.boost.org/LICENSE_1_0.txt)
   8 //
   9 //  The authors gratefully acknowledge the support of
  10 //  GeNeSys mbH & Co. KG in producing this work.
  11 //
  12
  13 #include <boost/numeric/ublas/vector.hpp>
  14 #include <boost/numeric/ublas/vector_proxy.hpp>
  15 #include <boost/numeric/ublas/io.hpp>
  16
  17 int main () {
  18     using namespace boost::numeric::ublas;
  19     vector<double> v (3);
  20     vector_slice<vector<double> > vs (v, slice (0, 1, 3));
  21     for (unsigned i = 0; i < vs.size (); ++ i)
  22         vs (i) = i;
  23     std::cout << vs << std::endl;
  24 }
  25