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 const 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 
main()26 int main()
27 {
28     {
29     typedef std::string S;
30     const S s;
31     assert(s.front() == 0);
32     assert(false);
33     }
34 #if TEST_STD_VER >= 11
35     {
36     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
37     const S s;
38     assert(s.front() == 0);
39     assert(false);
40     }
41 #endif
42 }
43 
44 #else
45 
main()46 int main()
47 {
48 }
49 
50 #endif
51