stod.pass.cpp (3779B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <string> 11 12 // double stod(const string& str, size_t *idx = 0); 13 // double stod(const wstring& str, size_t *idx = 0); 14 15 #include <string> 16 #include <cmath> 17 #include <cassert> 18 #include <stdexcept> 19 20 #include "test_macros.h" 21 22 int main() 23 { 24 assert(std::stod("0") == 0); 25 assert(std::stod(L"0") == 0); 26 assert(std::stod("-0") == 0); 27 assert(std::stod(L"-0") == 0); 28 assert(std::stod("-10") == -10); 29 assert(std::stod(L"-10.5") == -10.5); 30 assert(std::stod(" 10") == 10); 31 assert(std::stod(L" 10") == 10); 32 size_t idx = 0; 33 assert(std::stod("10g", &idx) == 10); 34 assert(idx == 2); 35 idx = 0; 36 assert(std::stod(L"10g", &idx) == 10); 37 assert(idx == 2); 38 #ifndef TEST_HAS_NO_EXCEPTIONS 39 try 40 #endif 41 { 42 assert(std::stod("1.e60", &idx) == 1.e60); 43 assert(idx == 5); 44 } 45 #ifndef TEST_HAS_NO_EXCEPTIONS 46 catch (const std::out_of_range&) 47 { 48 assert(false); 49 } 50 try 51 #endif 52 { 53 assert(std::stod(L"1.e60", &idx) == 1.e60); 54 assert(idx == 5); 55 } 56 #ifndef TEST_HAS_NO_EXCEPTIONS 57 catch (const std::out_of_range&) 58 { 59 assert(false); 60 } 61 idx = 0; 62 try 63 { 64 assert(std::stod("1.e360", &idx) == INFINITY); 65 assert(false); 66 } 67 catch (const std::out_of_range&) 68 { 69 assert(idx == 0); 70 } 71 try 72 { 73 assert(std::stod(L"1.e360", &idx) == INFINITY); 74 assert(false); 75 } 76 catch (const std::out_of_range&) 77 { 78 assert(idx == 0); 79 } 80 try 81 #endif 82 { 83 assert(std::stod("INF", &idx) == INFINITY); 84 assert(idx == 3); 85 } 86 #ifndef TEST_HAS_NO_EXCEPTIONS 87 catch (const std::out_of_range&) 88 { 89 assert(false); 90 } 91 #endif 92 idx = 0; 93 #ifndef TEST_HAS_NO_EXCEPTIONS 94 try 95 #endif 96 { 97 assert(std::stod(L"INF", &idx) == INFINITY); 98 assert(idx == 3); 99 } 100 #ifndef TEST_HAS_NO_EXCEPTIONS 101 catch (const std::out_of_range&) 102 { 103 assert(false); 104 } 105 #endif 106 idx = 0; 107 #ifndef TEST_HAS_NO_EXCEPTIONS 108 try 109 #endif 110 { 111 assert(std::isnan(std::stod("NAN", &idx))); 112 assert(idx == 3); 113 } 114 #ifndef TEST_HAS_NO_EXCEPTIONS 115 catch (const std::out_of_range&) 116 { 117 assert(false); 118 } 119 #endif 120 idx = 0; 121 #ifndef TEST_HAS_NO_EXCEPTIONS 122 try 123 #endif 124 { 125 assert(std::isnan(std::stod(L"NAN", &idx))); 126 assert(idx == 3); 127 } 128 #ifndef TEST_HAS_NO_EXCEPTIONS 129 catch (const std::out_of_range&) 130 { 131 assert(false); 132 } 133 idx = 0; 134 try 135 { 136 std::stod("", &idx); 137 assert(false); 138 } 139 catch (const std::invalid_argument&) 140 { 141 assert(idx == 0); 142 } 143 try 144 { 145 std::stod(L"", &idx); 146 assert(false); 147 } 148 catch (const std::invalid_argument&) 149 { 150 assert(idx == 0); 151 } 152 try 153 { 154 std::stod(" - 8", &idx); 155 assert(false); 156 } 157 catch (const std::invalid_argument&) 158 { 159 assert(idx == 0); 160 } 161 try 162 { 163 std::stod(L" - 8", &idx); 164 assert(false); 165 } 166 catch (const std::invalid_argument&) 167 { 168 assert(idx == 0); 169 } 170 try 171 { 172 std::stod("a1", &idx); 173 assert(false); 174 } 175 catch (const std::invalid_argument&) 176 { 177 assert(idx == 0); 178 } 179 try 180 { 181 std::stod(L"a1", &idx); 182 assert(false); 183 } 184 catch (const std::invalid_argument&) 185 { 186 assert(idx == 0); 187 } 188 #endif 189 }