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 // basic_string<charT,traits,Allocator>& operator+=(charT c);
13
14 #include <string>
15 #include <cassert>
16
17 #include "min_allocator.h"
18
19 template <class S>
20 void
test(S s,typename S::value_type str,S expected)21 test(S s, typename S::value_type str, S expected)
22 {
23 s += str;
24 assert(s.__invariants());
25 assert(s == expected);
26 }
27
main()28 int main()
29 {
30 {
31 typedef std::string S;
32 test(S(), 'a', S("a"));
33 test(S("12345"), 'a', S("12345a"));
34 test(S("1234567890"), 'a', S("1234567890a"));
35 test(S("12345678901234567890"), 'a', S("12345678901234567890a"));
36 }
37 #if __cplusplus >= 201103L
38 {
39 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
40 test(S(), 'a', S("a"));
41 test(S("12345"), 'a', S("12345a"));
42 test(S("1234567890"), 'a', S("1234567890a"));
43 test(S("12345678901234567890"), 'a', S("12345678901234567890a"));
44 }
45 #endif
46 }
47