ceph/src/boost/libs/parameter/test/compose.cpp

   1 //~ Copyright Rene Rivera 2006.
   2 //~ Use, modification and distribution is subject to the Boost Software License,
   3 //~ Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   4 //~ http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include <boost/parameter.hpp>
   7
   8 namespace param
   9 {
  10     BOOST_PARAMETER_KEYWORD(Tag,a0)
  11     BOOST_PARAMETER_KEYWORD(Tag,a1)
  12     BOOST_PARAMETER_KEYWORD(Tag,a2)
  13 }
  14
  15 namespace test
  16 {
  17     struct A
  18     {
  19         int i;
  20         int j;
  21
  22         template <typename ArgPack> A(ArgPack const & args)
  23         {
  24             i = args[param::a0];
  25             j = args[param::a1];
  26         }
  27     };
  28
  29     struct B : A
  30     {
  31         template <typename ArgPack> B(ArgPack const & args)
  32             : A((args, param::a0 = 1))
  33         {
  34         }
  35     };
  36 }
  37
  38 int main()
  39 {
  40     test::A a((param::a0 = 1, param::a1 = 13, param::a2 = 6));
  41     test::B b0((param::a1 = 13));
  42     test::B b1((param::a1 = 13, param::a2 = 6));
  43 }