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>&
13 // append(basic_string_view<charT,traits> sv);
14
15 #include <string>
16 #include <string_view>
17 #include <cassert>
18
19 #include "test_macros.h"
20 #include "min_allocator.h"
21
22 template <class S, class SV>
23 void
test(S s,SV sv,S expected)24 test(S s, SV sv, S expected)
25 {
26 s.append(sv);
27 LIBCPP_ASSERT(s.__invariants());
28 assert(s == expected);
29 }
30
main()31 int main()
32 {
33 {
34 typedef std::string S;
35 typedef std::string_view SV;
36 test(S(), SV(), S());
37 test(S(), SV("12345"), S("12345"));
38 test(S(), SV("1234567890"), S("1234567890"));
39 test(S(), SV("12345678901234567890"), S("12345678901234567890"));
40
41 test(S("12345"), SV(), S("12345"));
42 test(S("12345"), SV("12345"), S("1234512345"));
43 test(S("12345"), SV("1234567890"), S("123451234567890"));
44 test(S("12345"), SV("12345678901234567890"), S("1234512345678901234567890"));
45
46 test(S("1234567890"), SV(), S("1234567890"));
47 test(S("1234567890"), SV("12345"), S("123456789012345"));
48 test(S("1234567890"), SV("1234567890"), S("12345678901234567890"));
49 test(S("1234567890"), SV("12345678901234567890"), S("123456789012345678901234567890"));
50
51 test(S("12345678901234567890"), SV(), S("12345678901234567890"));
52 test(S("12345678901234567890"), SV("12345"), S("1234567890123456789012345"));
53 test(S("12345678901234567890"), SV("1234567890"), S("123456789012345678901234567890"));
54 test(S("12345678901234567890"), SV("12345678901234567890"),
55 S("1234567890123456789012345678901234567890"));
56 }
57 #if TEST_STD_VER >= 11
58 {
59 typedef std::basic_string <char, std::char_traits<char>, min_allocator<char>> S;
60 typedef std::basic_string_view<char, std::char_traits<char> > SV;
61 test(S(), SV(), S());
62 test(S(), SV("12345"), S("12345"));
63 test(S(), SV("1234567890"), S("1234567890"));
64 test(S(), SV("12345678901234567890"), S("12345678901234567890"));
65
66 test(S("12345"), SV(), S("12345"));
67 test(S("12345"), SV("12345"), S("1234512345"));
68 test(S("12345"), SV("1234567890"), S("123451234567890"));
69 test(S("12345"), SV("12345678901234567890"), S("1234512345678901234567890"));
70
71 test(S("1234567890"), SV(), S("1234567890"));
72 test(S("1234567890"), SV("12345"), S("123456789012345"));
73 test(S("1234567890"), SV("1234567890"), S("12345678901234567890"));
74 test(S("1234567890"), SV("12345678901234567890"), S("123456789012345678901234567890"));
75
76 test(S("12345678901234567890"), SV(), S("12345678901234567890"));
77 test(S("12345678901234567890"), SV("12345"), S("1234567890123456789012345"));
78 test(S("12345678901234567890"), SV("1234567890"), S("123456789012345678901234567890"));
79 test(S("12345678901234567890"), SV("12345678901234567890"),
80 S("1234567890123456789012345678901234567890"));
81 }
82 #endif
83 }
84