ceph/src/boost/libs/functional/factory/test/value_factory_move.cpp

   1 /*
   2 Copyright 2019 Glen Joseph Fernandes
   3 (glenjofe@gmail.com)
   4
   5 Distributed under the Boost Software License, Version 1.0.
   6 (http://www.boost.org/LICENSE_1_0.txt)
   7 */
   8 #include <boost/config.hpp>
   9 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
  10     !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
  11 #include <boost/functional/value_factory.hpp>
  12 #include <boost/core/lightweight_test.hpp>
  13
  14 class arg {
  15 public:
  16     explicit arg(int n)
  17         : value_(n) { }
  18
  19     arg(arg&& a)
  20         : value_(a.value_) { }
  21
  22     int get() const {
  23         return value_;
  24     }
  25
  26 private:
  27     int value_;
  28 };
  29
  30 class sum {
  31 public:
  32     explicit sum(arg&& a1, arg&& a2)
  33         : value_(a1.get() + a2.get()) { }
  34
  35     int get() const {
  36         return value_;
  37     }
  38
  39 private:
  40     int value_;
  41 };
  42
  43 int main()
  44 {
  45     sum s(boost::value_factory<sum>()(arg(1), arg(2)));
  46     BOOST_TEST(s.get() == 3);
  47     return boost::report_errors();
  48 }
  49 #else
  50 int main()
  51 {
  52     return 0;
  53 }
  54 #endif