1 /*=============================================================================
2     Copyright (c) 2001-2007 Joel de Guzman
3 
4     Distributed under the Boost Software License, Version 1.0. (See accompanying
5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 ==============================================================================*/
7 #include <iostream>
8 #include <string>
9 
10 #include <boost/phoenix/core/argument.hpp>
11 #include <boost/phoenix/core/reference.hpp>
12 #include <boost/phoenix/core/value.hpp>
13 #include <boost/detail/lightweight_test.hpp>
14 
15 using boost::phoenix::cref;
16 using boost::phoenix::ref;
17 using boost::phoenix::val;
18 
19 
20 int
main()21 main()
22 {
23 #ifndef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
24     using boost::phoenix::arg_names::_1;
25     using boost::phoenix::arg_names::arg1;
26     using boost::phoenix::arg_names::arg2;
27 #else
28     boost::phoenix::arg_names::_1_type _1;
29     boost::phoenix::arg_names::arg1_type arg1;
30     boost::phoenix::arg_names::arg2_type arg2;
31 #endif
32     char c1 = '1';
33     int i1 = 1, i2 = 2, i = 4;
34     const char* s2 = "2";
35 
36 
37 
38     ///////////////////////////////////////////////////////////////////////////
39     //
40     //  Values, references and arguments
41     //
42     ///////////////////////////////////////////////////////////////////////////
43 
44     //  argument
45     BOOST_TEST(arg1(c1) == c1);
46     BOOST_TEST(arg1(i1, i2) == i1);
47     BOOST_TEST(arg2(i1, s2) == s2);
48     BOOST_TEST(&(arg1(c1)) == &c1); // must be an lvalue
49 
50     //  value
51     val(' ')();
52     val(" ")();
53     std::cout << val("Hello,")() << val(' ')() << val("World")() << std::endl;
54     BOOST_TEST(val(3)() == 3);
55     BOOST_TEST(val("Hello, world")() == std::string("Hello, world"));
56     BOOST_TEST(val(_1)(i1) == i1);
57 
58     //  should not compile:
59 #ifdef PHOENIX_SHOULD_NOT_COMPILE_TEST
60     &val(_1)(i1); // should return an rvalue
61 #endif
62 
63     //  reference
64     BOOST_TEST(cref(i)() == ref(i)());
65     BOOST_TEST(cref(i)() == 4);
66     BOOST_TEST(i == 4);
67     BOOST_TEST(ref(++i)() == 5);
68     BOOST_TEST(i == 5);
69 
70     //  should not compile:
71 #ifdef PHOENIX_SHOULD_NOT_COMPILE_TEST
72     ref(arg1);
73 #endif
74 
75     // testing consts
76     int const ic = 123;
77     BOOST_TEST(arg1(ic) == 123);
78 
79     //  should not compile:
80 #ifdef PHOENIX_SHOULD_NOT_COMPILE_TEST
81     arg1();
82 #endif
83 
84     return boost::report_errors();
85 }
86