1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <string>
10
11 // basic_string<charT,traits,Allocator>&
12 // append(basic_string_view<charT,traits> sv);
13
14 #include <string>
15 #include <string_view>
16 #include <cassert>
17
18 #include "test_macros.h"
19 #include "min_allocator.h"
20
21 template <class S, class SV>
22 void
test(S s,SV sv,S expected)23 test(S s, SV sv, S expected)
24 {
25 s.append(sv);
26 LIBCPP_ASSERT(s.__invariants());
27 assert(s == expected);
28 }
29
main(int,char **)30 int main(int, char**)
31 {
32 {
33 typedef std::string S;
34 typedef std::string_view SV;
35 test(S(), SV(), S());
36 test(S(), SV("12345"), S("12345"));
37 test(S(), SV("1234567890"), S("1234567890"));
38 test(S(), SV("12345678901234567890"), S("12345678901234567890"));
39
40 test(S("12345"), SV(), S("12345"));
41 test(S("12345"), SV("12345"), S("1234512345"));
42 test(S("12345"), SV("1234567890"), S("123451234567890"));
43 test(S("12345"), SV("12345678901234567890"), S("1234512345678901234567890"));
44
45 test(S("1234567890"), SV(), S("1234567890"));
46 test(S("1234567890"), SV("12345"), S("123456789012345"));
47 test(S("1234567890"), SV("1234567890"), S("12345678901234567890"));
48 test(S("1234567890"), SV("12345678901234567890"), S("123456789012345678901234567890"));
49
50 test(S("12345678901234567890"), SV(), S("12345678901234567890"));
51 test(S("12345678901234567890"), SV("12345"), S("1234567890123456789012345"));
52 test(S("12345678901234567890"), SV("1234567890"), S("123456789012345678901234567890"));
53 test(S("12345678901234567890"), SV("12345678901234567890"),
54 S("1234567890123456789012345678901234567890"));
55 }
56 #if TEST_STD_VER >= 11
57 {
58 typedef std::basic_string <char, std::char_traits<char>, min_allocator<char>> S;
59 typedef std::basic_string_view<char, std::char_traits<char> > SV;
60 test(S(), SV(), S());
61 test(S(), SV("12345"), S("12345"));
62 test(S(), SV("1234567890"), S("1234567890"));
63 test(S(), SV("12345678901234567890"), S("12345678901234567890"));
64
65 test(S("12345"), SV(), S("12345"));
66 test(S("12345"), SV("12345"), S("1234512345"));
67 test(S("12345"), SV("1234567890"), S("123451234567890"));
68 test(S("12345"), SV("12345678901234567890"), S("1234512345678901234567890"));
69
70 test(S("1234567890"), SV(), S("1234567890"));
71 test(S("1234567890"), SV("12345"), S("123456789012345"));
72 test(S("1234567890"), SV("1234567890"), S("12345678901234567890"));
73 test(S("1234567890"), SV("12345678901234567890"), S("123456789012345678901234567890"));
74
75 test(S("12345678901234567890"), SV(), S("12345678901234567890"));
76 test(S("12345678901234567890"), SV("12345"), S("1234567890123456789012345"));
77 test(S("12345678901234567890"), SV("1234567890"), S("123456789012345678901234567890"));
78 test(S("12345678901234567890"), SV("12345678901234567890"),
79 S("1234567890123456789012345678901234567890"));
80 }
81 #endif
82
83 return 0;
84 }
85