ceph/src/boost/libs/phoenix/test/scope/lambda_tests3.cpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2007 Joel de Guzman
   3     Copyright (c) 2014      John Fletcher
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 ==============================================================================*/
   8 #include <iostream>
   9 #include <cmath>
  10 #include <algorithm>
  11 #include <vector>
  12
  13 #include <typeinfo>
  14
  15 #include <boost/detail/lightweight_test.hpp>
  16 #include <boost/phoenix/core.hpp>
  17 #include <boost/phoenix/operator.hpp>
  18 #include <boost/phoenix/function.hpp>
  19 #include <boost/phoenix/bind.hpp>
  20 #include <boost/phoenix/scope.hpp>
  21
  22 int
  23 main()
  24 {
  25     using boost::phoenix::lambda;
  26     using boost::phoenix::let;
  27     using boost::phoenix::ref;
  28     using boost::phoenix::val;
  29     using boost::phoenix::arg_names::_1;
  30     using boost::phoenix::arg_names::_2;
  31     using boost::phoenix::local_names::_a;
  32     using boost::phoenix::local_names::_b;
  33     //    using boost::phoenix::placeholders::arg1;
  34
  35
  36     {
  37         int x = 1, y = 10, z = 13;
  38
  39         BOOST_TEST(
  40             lambda(_a = _1, _b = _2)
  41             [
  42                 _1 + _a + _b
  43             ]
  44             (x, z)(y) == x + y + z
  45         );
  46     }
  47
  48     {
  49        {
  50             // $$$ Fixme. This should not be failing $$$
  51             //int x = (let(_a = lambda[val(1)])[_a])()();
  52             //BOOST_TEST(x == 1);
  53        }
  54
  55        {
  56          //   int x = (let(_a = lambda[val(1)])[bind(_a)])();
  57          //   BOOST_TEST(x == 1);
  58          // Take this out too, I am not sure about this.
  59        }
  60     }
  61
  62     {
  63         int i = 0;
  64         int j = 2;
  65         BOOST_TEST(lambda[let(_a = _1)[_a = _2]]()(i, j) == j);
  66         BOOST_TEST(i == j);
  67     }
  68
  69
  70     return boost::report_errors();
  71 }