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 // operator=(const charT* s);
13
14 #include <string>
15 #include <cassert>
16
17 #include "test_macros.h"
18 #include "min_allocator.h"
19
20 template <class S>
21 void
test(S s1,const typename S::value_type * s2)22 test(S s1, const typename S::value_type* s2)
23 {
24 typedef typename S::traits_type T;
25 s1 = s2;
26 LIBCPP_ASSERT(s1.__invariants());
27 assert(s1.size() == T::length(s2));
28 assert(T::compare(s1.data(), s2, s1.size()) == 0);
29 assert(s1.capacity() >= s1.size());
30 }
31
main(int,char **)32 int main(int, char**)
33 {
34 {
35 typedef std::string S;
36 test(S(), "");
37 test(S("1"), "");
38 test(S(), "1");
39 test(S("1"), "2");
40 test(S("1"), "2");
41
42 test(S(),
43 "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
44 test(S("123456789"),
45 "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
46 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
47 "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
48 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
49 "1234567890123456789012345678901234567890123456789012345678901234567890"),
50 "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
51 }
52 #if TEST_STD_VER >= 11
53 {
54 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
55 test(S(), "");
56 test(S("1"), "");
57 test(S(), "1");
58 test(S("1"), "2");
59 test(S("1"), "2");
60
61 test(S(),
62 "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
63 test(S("123456789"),
64 "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
65 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
66 "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
67 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
68 "1234567890123456789012345678901234567890123456789012345678901234567890"),
69 "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
70 }
71 #endif
72
73 return 0;
74 }
75