1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <string>
10
11 // double stod(const string& str, size_t *idx = 0);
12 // double stod(const wstring& str, size_t *idx = 0);
13
14 #include <string>
15 #include <cmath>
16 #include <cassert>
17 #include <stdexcept>
18
19 #include "test_macros.h"
20
main(int,char **)21 int main(int, char**) {
22 // char
23 {
24 assert(std::stod("0") == 0);
25 assert(std::stod("-0") == 0);
26 assert(std::stod("-10") == -10);
27 assert(std::stod(" 10") == 10);
28 {
29 std::size_t idx = 0;
30 assert(std::stod("10g", &idx) == 10);
31 assert(idx == 2);
32 }
33 {
34 std::size_t idx = 0;
35 assert(std::stod("1.e60", &idx) == 1.e60);
36 assert(idx == 5);
37 }
38 {
39 std::size_t idx = 0;
40 assert(std::stod("INF", &idx) == INFINITY);
41 assert(idx == 3);
42 }
43 {
44 std::size_t idx = 0;
45 assert(std::isnan(std::stod("NAN", &idx)));
46 assert(idx == 3);
47 }
48
49 #ifndef TEST_HAS_NO_EXCEPTIONS
50 {
51 std::size_t idx = 0;
52 try {
53 assert(std::stod("1.e360", &idx) == INFINITY);
54 assert(false);
55 } catch (const std::out_of_range&) {
56 assert(idx == 0);
57 }
58 }
59 {
60 std::size_t idx = 0;
61 try {
62 (void)std::stod("", &idx);
63 assert(false);
64 } catch (const std::invalid_argument&) {
65 assert(idx == 0);
66 }
67 }
68 {
69 std::size_t idx = 0;
70 try {
71 (void)std::stod(" - 8", &idx);
72 assert(false);
73 } catch (const std::invalid_argument&) {
74 assert(idx == 0);
75 }
76 }
77 {
78 std::size_t idx = 0;
79 try {
80 (void)std::stod("a1", &idx);
81 assert(false);
82 } catch (const std::invalid_argument&) {
83 assert(idx == 0);
84 }
85 }
86 #endif // TEST_HAS_NO_EXCEPTIONS
87 }
88
89 // wchar_t
90 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
91 {
92 assert(std::stod(L"0") == 0);
93 assert(std::stod(L"-0") == 0);
94 assert(std::stod(L"-10.5") == -10.5);
95 assert(std::stod(L" 10") == 10);
96 {
97 std::size_t idx = 0;
98 assert(std::stod(L"10g", &idx) == 10);
99 assert(idx == 2);
100 }
101 {
102 std::size_t idx = 0;
103 assert(std::stod(L"1.e60", &idx) == 1.e60);
104 assert(idx == 5);
105 }
106 {
107 std::size_t idx = 0;
108 assert(std::stod(L"INF", &idx) == INFINITY);
109 assert(idx == 3);
110 }
111 {
112 std::size_t idx = 0;
113 assert(std::isnan(std::stod(L"NAN", &idx)));
114 assert(idx == 3);
115 }
116 # ifndef TEST_HAS_NO_EXCEPTIONS
117 {
118 std::size_t idx = 0;
119 try {
120 assert(std::stod(L"1.e360", &idx) == INFINITY);
121 assert(false);
122 } catch (const std::out_of_range&) {
123 assert(idx == 0);
124 }
125 }
126 {
127 std::size_t idx = 0;
128 try {
129 (void)std::stod(L"", &idx);
130 assert(false);
131 } catch (const std::invalid_argument&) {
132 assert(idx == 0);
133 }
134 }
135 {
136 std::size_t idx = 0;
137 try {
138 (void)std::stod(L" - 8", &idx);
139 assert(false);
140 } catch (const std::invalid_argument&) {
141 assert(idx == 0);
142 }
143 }
144 {
145 std::size_t idx = 0;
146 try {
147 (void)std::stod(L"a1", &idx);
148 assert(false);
149 } catch (const std::invalid_argument&) {
150 assert(idx == 0);
151 }
152 }
153 # endif // TEST_HAS_NO_EXCEPTIONS
154 }
155 #endif // TEST_HAS_NO_WIDE_CHARACTERS
156
157 return 0;
158 }
159