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 // void pop_back();
13
14 #include <string>
15 #include <cassert>
16
17 #include "test_macros.h"
18 #include "min_allocator.h"
19
20 template <class S>
21 void
test(S s,S expected)22 test(S s, S expected)
23 {
24 s.pop_back();
25 LIBCPP_ASSERT(s.__invariants());
26 assert(s[s.size()] == typename S::value_type());
27 assert(s == expected);
28 }
29
main()30 int main()
31 {
32 {
33 typedef std::string S;
34 test(S("abcde"), S("abcd"));
35 test(S("abcdefghij"), S("abcdefghi"));
36 test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrs"));
37 }
38 #if TEST_STD_VER >= 11
39 {
40 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
41 test(S("abcde"), S("abcd"));
42 test(S("abcdefghij"), S("abcdefghi"));
43 test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrs"));
44 }
45 #endif
46 }
47