1 | // Boost.Convert test and usage example |
2 | // Copyright (c) 2009-2014 Vladimir Batov. |
3 | // Use, modification and distribution are subject to the Boost Software License, |
4 | // Version 1.0. See http://www.boost.org/LICENSE_1_0.txt. |
5 | |
6 | #include "./test.hpp" |
7 | |
8 | #ifdef BOOST_CONVERT_INTEL_SFINAE_BROKEN |
9 | int main(int, char const* []) { return 0; } |
10 | #else |
11 | |
12 | #include <boost/convert.hpp> |
13 | #include <boost/convert/stream.hpp> |
14 | #include <boost/detail/lightweight_test.hpp> |
15 | #include <boost/function.hpp> |
16 | #include <boost/bind.hpp> |
17 | |
18 | namespace { namespace local |
19 | { |
20 | bool called_functor_int; |
21 | bool called_functor_double; |
22 | bool called_functor_foo; |
23 | bool called_function_int; |
24 | bool called_function_long; |
25 | }} |
26 | |
27 | struct functor_int { int operator() () const { local:: called_functor_int = true; return INT_MAX; }}; |
28 | struct functor_double { double operator() () const { local::called_functor_double = true; return INT_MAX; }}; |
29 | struct functor_foo { int func (int) const { local:: called_functor_foo = true; return INT_MAX; }}; |
30 | |
31 | int function_int () { local:: called_function_int = true; return INT_MAX; } |
32 | long function_long () { local::called_function_long = true; return INT_MAX; } |
33 | |
34 | int |
35 | main(int, char const* []) |
36 | { |
37 | boost::cnv::cstream cnv; |
38 | functor_foo foo; |
39 | |
40 | int i01 = boost::convert<int>(value_in: "uhm" , converter: cnv).value_or_eval(f: functor_int()); |
41 | int i02 = boost::convert<int>(value_in: "uhm" , converter: cnv).value_or_eval(f: functor_double()); |
42 | int i03 = boost::convert<int>(value_in: "uhm" , converter: cnv).value_or_eval(f: boost::bind(f: &functor_foo::func, a1: foo, a2: 0)); |
43 | int i04 = boost::convert<int>(value_in: "uhm" , converter: cnv).value_or_eval(f: function_int); |
44 | int i05 = boost::convert<int>(value_in: "uhm" , converter: cnv).value_or_eval(f: function_long); |
45 | |
46 | BOOST_TEST(local:: called_functor_int && i01 == INT_MAX); |
47 | BOOST_TEST(local::called_functor_double && i02 == INT_MAX); |
48 | BOOST_TEST(local:: called_functor_foo && i03 == INT_MAX); |
49 | BOOST_TEST(local:: called_function_int && i04 == INT_MAX); |
50 | BOOST_TEST(local:: called_function_long && i05 == INT_MAX); |
51 | |
52 | local:: called_functor_int = false; |
53 | local::called_functor_double = false; |
54 | local:: called_functor_foo = false; |
55 | local:: called_function_int = false; |
56 | local:: called_function_long = false; |
57 | |
58 | boost::convert<int>(value_in: "uhm" , converter: cnv, fallback: functor_int()); |
59 | boost::convert<int>(value_in: "uhm" , converter: cnv, fallback: functor_double()); |
60 | boost::convert<int>(value_in: "uhm" , converter: cnv, fallback: boost::bind(f: &functor_foo::func, a1: foo, a2: 0)); |
61 | boost::convert<int>(value_in: "uhm" , converter: cnv, fallback: function_int); |
62 | boost::convert<int>(value_in: "uhm" , converter: cnv, fallback: function_long); |
63 | |
64 | BOOST_TEST(local:: called_functor_int && i01 == INT_MAX); |
65 | BOOST_TEST(local::called_functor_double && i02 == INT_MAX); |
66 | BOOST_TEST(local:: called_functor_foo && i03 == INT_MAX); |
67 | BOOST_TEST(local:: called_function_int && i04 == INT_MAX); |
68 | BOOST_TEST(local:: called_function_long && i05 == INT_MAX); |
69 | |
70 | try |
71 | { |
72 | boost::convert<int>(value_in: "uhm" , converter: cnv, boost::throw_on_failure); |
73 | BOOST_TEST(0); |
74 | } |
75 | catch (boost::bad_optional_access const&) |
76 | { |
77 | } |
78 | return boost::report_errors(); |
79 | } |
80 | |
81 | #endif |
82 | |