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 // test underflow_error
11 
12 #include <stdexcept>
13 #include <type_traits>
14 #include <cstring>
15 #include <string>
16 #include <cassert>
17 
main()18 int main()
19 {
20     static_assert((std::is_base_of<std::runtime_error, std::underflow_error>::value),
21                  "std::is_base_of<std::runtime_error, std::underflow_error>::value");
22     static_assert(std::is_polymorphic<std::underflow_error>::value,
23                  "std::is_polymorphic<std::underflow_error>::value");
24     {
25     const char* msg = "underflow_error message";
26     std::underflow_error e(msg);
27     assert(std::strcmp(e.what(), msg) == 0);
28     std::underflow_error e2(e);
29     assert(std::strcmp(e2.what(), msg) == 0);
30     e2 = e;
31     assert(std::strcmp(e2.what(), msg) == 0);
32     }
33     {
34     std::string msg("another underflow_error message");
35     std::underflow_error e(msg);
36     assert(e.what() == msg);
37     std::underflow_error e2(e);
38     assert(e2.what() == msg);
39     e2 = e;
40     assert(e2.what() == msg);
41     }
42 }
43