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+=(const charT* s);
13
14 #include <string>
15 #include <cassert>
16
17 #include "min_allocator.h"
18
19 template <class S>
20 void
test(S s,const typename S::value_type * str,S expected)21 test(S s, const 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(), "", S());
33 test(S(), "12345", S("12345"));
34 test(S(), "1234567890", S("1234567890"));
35 test(S(), "12345678901234567890", S("12345678901234567890"));
36
37 test(S("12345"), "", S("12345"));
38 test(S("12345"), "12345", S("1234512345"));
39 test(S("12345"), "1234567890", S("123451234567890"));
40 test(S("12345"), "12345678901234567890", S("1234512345678901234567890"));
41
42 test(S("1234567890"), "", S("1234567890"));
43 test(S("1234567890"), "12345", S("123456789012345"));
44 test(S("1234567890"), "1234567890", S("12345678901234567890"));
45 test(S("1234567890"), "12345678901234567890", S("123456789012345678901234567890"));
46
47 test(S("12345678901234567890"), "", S("12345678901234567890"));
48 test(S("12345678901234567890"), "12345", S("1234567890123456789012345"));
49 test(S("12345678901234567890"), "1234567890", S("123456789012345678901234567890"));
50 test(S("12345678901234567890"), "12345678901234567890",
51 S("1234567890123456789012345678901234567890"));
52 }
53 #if __cplusplus >= 201103L
54 {
55 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
56 test(S(), "", S());
57 test(S(), "12345", S("12345"));
58 test(S(), "1234567890", S("1234567890"));
59 test(S(), "12345678901234567890", S("12345678901234567890"));
60
61 test(S("12345"), "", S("12345"));
62 test(S("12345"), "12345", S("1234512345"));
63 test(S("12345"), "1234567890", S("123451234567890"));
64 test(S("12345"), "12345678901234567890", S("1234512345678901234567890"));
65
66 test(S("1234567890"), "", S("1234567890"));
67 test(S("1234567890"), "12345", S("123456789012345"));
68 test(S("1234567890"), "1234567890", S("12345678901234567890"));
69 test(S("1234567890"), "12345678901234567890", S("123456789012345678901234567890"));
70
71 test(S("12345678901234567890"), "", S("12345678901234567890"));
72 test(S("12345678901234567890"), "12345", S("1234567890123456789012345"));
73 test(S("12345678901234567890"), "1234567890", S("123456789012345678901234567890"));
74 test(S("12345678901234567890"), "12345678901234567890",
75 S("1234567890123456789012345678901234567890"));
76 }
77 #endif
78 }
79