1 // Unit test for boost::lexical_cast.
2 //
3 // See http://www.boost.org for most recent version, including documentation.
4 //
5 // Copyright Antony Polukhin, 2012-2020.
6 //
7 // Distributed under the Boost
8 // Software License, Version 1.0. (See accompanying file
9 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt).
10
11 #include <boost/config.hpp>
12
13 #if defined(__INTEL_COMPILER)
14 #pragma warning(disable: 193 383 488 981 1418 1419)
15 #elif defined(BOOST_MSVC)
16 #pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
17 #endif
18
19 #include <boost/lexical_cast.hpp>
20 #include <boost/test/unit_test.hpp>
21 #include <boost/range/iterator_range.hpp>
22
23 #include "escape_struct.hpp"
24
25 using namespace boost;
26
27 // Testing compilation and some basic usage with BOOST_NO_STD_LOCALE
28 // Tests are mainly copyied from lexical_cast_empty_input_test.cpp (something
29 // new added to test_empty_3)
30
31 #ifndef BOOST_NO_STD_LOCALE
32 #error "This test must be compiled with -DBOOST_NO_STD_LOCALE"
33 #endif
34
35
36 template <class T>
do_test_on_empty_input(T & v)37 void do_test_on_empty_input(T& v)
38 {
39 BOOST_CHECK_THROW(lexical_cast<int>(v), bad_lexical_cast);
40 BOOST_CHECK_THROW(lexical_cast<float>(v), bad_lexical_cast);
41 BOOST_CHECK_THROW(lexical_cast<double>(v), bad_lexical_cast);
42 #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
43 BOOST_CHECK_THROW(lexical_cast<long double>(v), bad_lexical_cast);
44 #endif
45 BOOST_CHECK_THROW(lexical_cast<unsigned int>(v), bad_lexical_cast);
46 BOOST_CHECK_THROW(lexical_cast<unsigned short>(v), bad_lexical_cast);
47 #if defined(BOOST_HAS_LONG_LONG)
48 BOOST_CHECK_THROW(lexical_cast<boost::ulong_long_type>(v), bad_lexical_cast);
49 BOOST_CHECK_THROW(lexical_cast<boost::long_long_type>(v), bad_lexical_cast);
50 #elif defined(BOOST_HAS_MS_INT64)
51 BOOST_CHECK_THROW(lexical_cast<unsigned __int64>(v), bad_lexical_cast);
52 BOOST_CHECK_THROW(lexical_cast<__int64>(v), bad_lexical_cast);
53 #endif
54 }
55
test_empty_1()56 void test_empty_1()
57 {
58 boost::iterator_range<char*> v;
59 do_test_on_empty_input(v);
60 BOOST_CHECK_EQUAL(lexical_cast<std::string>(v), std::string());
61 BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
62 BOOST_CHECK_THROW(lexical_cast<unsigned char>(v), bad_lexical_cast);
63 BOOST_CHECK_THROW(lexical_cast<signed char>(v), bad_lexical_cast);
64
65 boost::iterator_range<const char*> cv;
66 do_test_on_empty_input(cv);
67 BOOST_CHECK_EQUAL(lexical_cast<std::string>(cv), std::string());
68 BOOST_CHECK_THROW(lexical_cast<char>(cv), bad_lexical_cast);
69 BOOST_CHECK_THROW(lexical_cast<unsigned char>(cv), bad_lexical_cast);
70 BOOST_CHECK_THROW(lexical_cast<signed char>(cv), bad_lexical_cast);
71
72 const boost::iterator_range<const char*> ccv;
73 do_test_on_empty_input(ccv);
74 BOOST_CHECK_EQUAL(lexical_cast<std::string>(ccv), std::string());
75 BOOST_CHECK_THROW(lexical_cast<char>(ccv), bad_lexical_cast);
76 BOOST_CHECK_THROW(lexical_cast<unsigned char>(ccv), bad_lexical_cast);
77 BOOST_CHECK_THROW(lexical_cast<signed char>(ccv), bad_lexical_cast);
78 }
79
test_empty_2()80 void test_empty_2()
81 {
82 std::string v;
83 do_test_on_empty_input(v);
84 BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
85 BOOST_CHECK_THROW(lexical_cast<unsigned char>(v), bad_lexical_cast);
86 BOOST_CHECK_THROW(lexical_cast<signed char>(v), bad_lexical_cast);
87 }
88
test_empty_3()89 void test_empty_3()
90 {
91 EscapeStruct v("");
92 do_test_on_empty_input(v);
93
94 BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
95 BOOST_CHECK_THROW(lexical_cast<unsigned char>(v), bad_lexical_cast);
96 BOOST_CHECK_THROW(lexical_cast<signed char>(v), bad_lexical_cast);
97
98 v = lexical_cast<EscapeStruct>(100);
99 BOOST_CHECK_EQUAL(lexical_cast<int>(v), 100);
100 BOOST_CHECK_EQUAL(lexical_cast<unsigned int>(v), 100u);
101
102 v = lexical_cast<EscapeStruct>(0.0);
103 BOOST_CHECK_EQUAL(lexical_cast<double>(v), 0.0);
104 }
105
106 namespace std {
operator <<(std::ostream & out,const std::vector<long> & v)107 inline std::ostream & operator<<(std::ostream & out, const std::vector<long> & v)
108 {
109 std::ostream_iterator<long> it(out);
110 std::copy(v.begin(), v.end(), it);
111 BOOST_CHECK(out);
112 return out;
113 }
114 }
115
test_empty_4()116 void test_empty_4()
117 {
118 std::vector<long> v;
119 do_test_on_empty_input(v);
120 BOOST_CHECK_THROW(lexical_cast<char>(v), bad_lexical_cast);
121 BOOST_CHECK_THROW(lexical_cast<unsigned char>(v), bad_lexical_cast);
122 BOOST_CHECK_THROW(lexical_cast<signed char>(v), bad_lexical_cast);
123 }
124
125
126 struct my_string {
operator <<(std::ostream & sout,my_string const &)127 friend std::ostream &operator<<(std::ostream& sout, my_string const&/* st*/) {
128 return sout << "";
129 }
130 };
131
test_empty_5()132 void test_empty_5()
133 {
134 my_string st;
135 BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(st), std::string());;
136 }
137
init_unit_test_suite(int,char * [])138 unit_test::test_suite *init_unit_test_suite(int, char *[])
139 {
140 unit_test::test_suite *suite =
141 BOOST_TEST_SUITE("lexical_cast. Testing with BOOST_NO_STD_LOCALE");
142 suite->add(BOOST_TEST_CASE(&test_empty_1));
143 suite->add(BOOST_TEST_CASE(&test_empty_2));
144 suite->add(BOOST_TEST_CASE(&test_empty_3));
145 suite->add(BOOST_TEST_CASE(&test_empty_4));
146 suite->add(BOOST_TEST_CASE(&test_empty_5));
147
148 return suite;
149 }
150
151