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// Call front() on empty container.
13
14#if _LIBCPP_DEBUG >= 1
15
16#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
17
18#include <string>
19#include <cassert>
20#include <iterator>
21#include <exception>
22#include <cstdlib>
23
24#include "min_allocator.h"
25
26int main()
27{
28    {
29    typedef std::string S;
30    S s(1, '\0');
31    assert(s.front() == 0);
32    s.clear();
33    assert(s.front() == 0);
34    assert(false);
35    }
36#if __cplusplus >= 201103L
37    {
38    typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
39    S s(1, '\0');
40    assert(s.front() == 0);
41    s.clear();
42    assert(s.front() == 0);
43    assert(false);
44    }
45#endif
46}
47
48#else
49
50int main()
51{
52}
53
54#endif
55