1 /*=============================================================================
2 Copyright (c) 2001-2015 Joel de Guzman
3 Copyright (c) 2001-2011 Hartmut Kaiser
4 Copyright (c) 2011 Bryce Lelbach
5
6 Use, modification and distribution is subject to the Boost Software
7 License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
8 http://www.boost.org/LICENSE_1_0.txt)
9 =============================================================================*/
10
11 #include "real.hpp"
12
13 template <typename T, typename P>
basic_real_parser_test(P parser)14 void basic_real_parser_test(P parser)
15 {
16 using spirit_test::test;
17 using spirit_test::test_attr;
18
19 T attr;
20
21 BOOST_TEST(test("-1234", parser));
22 BOOST_TEST(test_attr("-1234", parser, attr) && compare(attr, T(-1234l)));
23
24 BOOST_TEST(test("-1.2e3", parser));
25 BOOST_TEST(test_attr("-1.2e3", parser, attr) && compare(attr, T(-1.2e3l)));
26
27 BOOST_TEST(test("+1.2e3", parser));
28 BOOST_TEST(test_attr("+1.2e3", parser, attr) && compare(attr, T(1.2e3l)));
29
30 BOOST_TEST(test("-0.1", parser));
31 BOOST_TEST(test_attr("-0.1", parser, attr) && compare(attr, T(-0.1l)));
32
33 BOOST_TEST(test("-1.2e-3", parser));
34 BOOST_TEST(test_attr("-1.2e-3", parser, attr) && compare(attr, T(-1.2e-3l)));
35
36 BOOST_TEST(test("-1.e2", parser));
37 BOOST_TEST(test_attr("-1.e2", parser, attr) && compare(attr, T(-1.e2l)));
38
39 BOOST_TEST(test("-.2e3", parser));
40 BOOST_TEST(test_attr("-.2e3", parser, attr) && compare(attr, T(-.2e3l)));
41
42 BOOST_TEST(test("-2e3", parser));
43 BOOST_TEST(test_attr("-2e3", parser, attr) && compare(attr, T(-2e3l)));
44
45 BOOST_TEST(!test("-e3", parser));
46 BOOST_TEST(!test_attr("-e3", parser, attr));
47
48 BOOST_TEST(!test("-1.2e", parser));
49 BOOST_TEST(!test_attr("-1.2e", parser, attr));
50 }
51
52 int
main()53 main()
54 {
55 using spirit_test::test;
56 using spirit_test::test_attr;
57
58 BOOST_SPIRIT_ASSERT_CONSTEXPR_CTORS(boost::spirit::x3::float_);
59 BOOST_SPIRIT_ASSERT_CONSTEXPR_CTORS(boost::spirit::x3::double_);
60 BOOST_SPIRIT_ASSERT_CONSTEXPR_CTORS(boost::spirit::x3::long_double);
61
62 ///////////////////////////////////////////////////////////////////////////
63 // signed real number tests
64 ///////////////////////////////////////////////////////////////////////////
65 {
66 basic_real_parser_test<float>(boost::spirit::x3::float_);
67 basic_real_parser_test<double>(boost::spirit::x3::double_);
68 basic_real_parser_test<long double>(boost::spirit::x3::long_double);
69 }
70
71 {
72 using boost::spirit::x3::double_;
73 double d;
74
75 #if defined(BOOST_SPIRIT_TEST_REAL_PRECISION)
76 BOOST_TEST(test_attr("-5.7222349715140557e+307", double_, d));
77 BOOST_TEST(d == -5.7222349715140557e+307); // exact!
78
79 BOOST_TEST(test_attr("2.0332938517515416e-308", double_, d));
80 BOOST_TEST(d == 2.0332938517515416e-308); // exact!
81
82 BOOST_TEST(test_attr("20332938517515416e291", double_, d));
83 BOOST_TEST(d == 20332938517515416e291); // exact!
84
85 BOOST_TEST(test_attr("2.0332938517515416e307", double_, d));
86 BOOST_TEST(d == 2.0332938517515416e307); // exact!
87 #endif
88
89 using boost::math::fpclassify;
90 using boost::spirit::x3::signbit; // Boost version is broken
91
92 BOOST_TEST(test("-inf", double_));
93 BOOST_TEST(test("-infinity", double_));
94 BOOST_TEST(test_attr("-inf", double_, d) &&
95 FP_INFINITE == fpclassify(d) && signbit(d));
96 BOOST_TEST(test_attr("-infinity", double_, d) &&
97 FP_INFINITE == fpclassify(d) && signbit(d));
98 BOOST_TEST(test("-INF", double_));
99 BOOST_TEST(test("-INFINITY", double_));
100 BOOST_TEST(test_attr("-INF", double_, d) &&
101 FP_INFINITE == fpclassify(d) && signbit(d));
102 BOOST_TEST(test_attr("-INFINITY", double_, d) &&
103 FP_INFINITE == fpclassify(d) && signbit(d));
104
105 BOOST_TEST(test("-nan", double_));
106 BOOST_TEST(test_attr("-nan", double_, d) &&
107 FP_NAN == fpclassify(d) && signbit(d));
108 BOOST_TEST(test("-NAN", double_));
109 BOOST_TEST(test_attr("-NAN", double_, d) &&
110 FP_NAN == fpclassify(d) && signbit(d));
111
112 BOOST_TEST(test("-nan(...)", double_));
113 BOOST_TEST(test_attr("-nan(...)", double_, d) &&
114 FP_NAN == fpclassify(d) && signbit(d));
115 BOOST_TEST(test("-NAN(...)", double_));
116 BOOST_TEST(test_attr("-NAN(...)", double_, d) &&
117 FP_NAN == fpclassify(d) && signbit(d));
118
119 BOOST_TEST(!test("1e999", double_));
120 BOOST_TEST(!test("1e-999", double_));
121 BOOST_TEST(test_attr("2.1111111e-303", double_, d) &&
122 compare(d, 2.1111111e-303));
123 BOOST_TEST(!test_attr("1.1234e", double_, d) && compare(d, 1.1234));
124
125 // https://svn.boost.org/trac10/ticket/11608
126 BOOST_TEST(test_attr("1267650600228229401496703205376", double_, d) &&
127 compare(d, 1.2676506002282291E+30)); // Note Qi has better precision
128
129 BOOST_TEST(test_attr("12676506.00228229401496703205376", double_, d) &&
130 compare(d, 1.2676506002282292E7)); // Note Qi has better precision
131
132 BOOST_TEST(test_attr("12676506.00228229401496703205376E6", double_, d) &&
133 compare(d, 1.2676506002282291016E13)); // Note Qi has better precision
134 }
135
136 return boost::report_errors();
137 }
138