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
18int 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