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      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 // unsigned long stoul(const string& str, size_t *idx = 0, int base = 10);
     13 // unsigned long stoul(const wstring& str, size_t *idx = 0, int base = 10);
     14 
     15 #include <string>
     16 #include <cassert>
     17 
     18 int main()
     19 {
     20     assert(std::stoul("0") == 0);
     21     assert(std::stoul(L"0") == 0);
     22     assert(std::stoul("-0") == 0);
     23     assert(std::stoul(L"-0") == 0);
     24     assert(std::stoul(" 10") == 10);
     25     assert(std::stoul(L" 10") == 10);
     26     size_t idx = 0;
     27     assert(std::stoul("10g", &idx, 16) == 16);
     28     assert(idx == 2);
     29     idx = 0;
     30     assert(std::stoul(L"10g", &idx, 16) == 16);
     31     assert(idx == 2);
     32     idx = 0;
     33     try
     34     {
     35         std::stoul("", &idx);
     36         assert(false);
     37     }
     38     catch (const std::invalid_argument&)
     39     {
     40         assert(idx == 0);
     41     }
     42     try
     43     {
     44         std::stoul(L"", &idx);
     45         assert(false);
     46     }
     47     catch (const std::invalid_argument&)
     48     {
     49         assert(idx == 0);
     50     }
     51     try
     52     {
     53         std::stoul("  - 8", &idx);
     54         assert(false);
     55     }
     56     catch (const std::invalid_argument&)
     57     {
     58         assert(idx == 0);
     59     }
     60     try
     61     {
     62         std::stoul(L"  - 8", &idx);
     63         assert(false);
     64     }
     65     catch (const std::invalid_argument&)
     66     {
     67         assert(idx == 0);
     68     }
     69     try
     70     {
     71         std::stoul("a1", &idx);
     72         assert(false);
     73     }
     74     catch (const std::invalid_argument&)
     75     {
     76         assert(idx == 0);
     77     }
     78     try
     79     {
     80         std::stoul(L"a1", &idx);
     81         assert(false);
     82     }
     83     catch (const std::invalid_argument&)
     84     {
     85         assert(idx == 0);
     86     }
     87 }
     88