20     assert(std::stoi("0") == 0);  in main()
21     assert(std::stoi(L"0") == 0);  in main()
22     assert(std::stoi("-0") == 0);  in main()
23     assert(std::stoi(L"-0") == 0);  in main()
24     assert(std::stoi("-10") == -10);  in main()
25     assert(std::stoi(L"-10") == -10);  in main()
26     assert(std::stoi(" 10") == 10);  in main()
27     assert(std::stoi(L" 10") == 10);  in main()
29     assert(std::stoi("10g", &idx, 16) == 16);  in main()
32     assert(std::stoi(L"10g", &idx, 16) == 16);  in main()
38             std::stoi("0x100000000", &idx, 16);  in main()
46             std::stoi(L"0x100000000", &idx, 16);  in main()
56         std::stoi("", &idx);  in main()
65         std::stoi(L"", &idx);  in main()
74         std::stoi("  - 8", &idx);  in main()
83         std::stoi(L"  - 8", &idx);  in main()
92         std::stoi("a1", &idx);  in main()
101         std::stoi(L"a1", &idx);  in main()