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=(basic_string_view<charT, traits> sv);
13
14 #include <string>
15 #include <cassert>
16
17 #include "test_macros.h"
18 #include "min_allocator.h"
19
20 template <class S, class SV>
21 void
test(S s1,SV sv)22 test(S s1, SV sv)
23 {
24 typedef typename S::traits_type T;
25 s1 = sv;
26 LIBCPP_ASSERT(s1.__invariants());
27 assert(s1.size() == sv.size());
28 assert(T::compare(s1.data(), sv.data(), s1.size()) == 0);
29 assert(s1.capacity() >= s1.size());
30 }
31
main()32 int main()
33 {
34 {
35 typedef std::string S;
36 typedef std::string_view SV;
37 test(S(), SV(""));
38 test(S("1"), SV(""));
39 test(S(), SV("1"));
40 test(S("1"), SV("2"));
41 test(S("1"), SV("2"));
42
43 test(S(),
44 SV("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
45 test(S("123456789"),
46 SV("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
47 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
48 SV("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
49 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
50 "1234567890123456789012345678901234567890123456789012345678901234567890"),
51 SV("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
52 }
53 #if TEST_STD_VER >= 11
54 {
55 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
56 typedef std::string_view SV;
57 test(S(), SV(""));
58 test(S("1"), SV(""));
59 test(S(), SV("1"));
60 test(S("1"), SV("2"));
61 test(S("1"), SV("2"));
62
63 test(S(),
64 SV("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
65 test(S("123456789"),
66 SV("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
67 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
68 SV("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
69 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
70 "1234567890123456789012345678901234567890123456789012345678901234567890"),
71 SV("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
72 }
73 #endif
74 }
75