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 // template<class charT, class traits, class Allocator>
13 // void swap(basic_string<charT,traits,Allocator>& lhs,
14 // basic_string<charT,traits,Allocator>& rhs);
15
16 #include <string>
17 #include <stdexcept>
18 #include <algorithm>
19 #include <cassert>
20
21 #include "min_allocator.h"
22
23 template <class S>
24 void
test(S s1,S s2)25 test(S s1, S s2)
26 {
27 S s1_ = s1;
28 S s2_ = s2;
29 swap(s1, s2);
30 assert(s1.__invariants());
31 assert(s2.__invariants());
32 assert(s1 == s2_);
33 assert(s2 == s1_);
34 }
35
main()36 int main()
37 {
38 {
39 typedef std::string S;
40 test(S(""), S(""));
41 test(S(""), S("12345"));
42 test(S(""), S("1234567890"));
43 test(S(""), S("12345678901234567890"));
44 test(S("abcde"), S(""));
45 test(S("abcde"), S("12345"));
46 test(S("abcde"), S("1234567890"));
47 test(S("abcde"), S("12345678901234567890"));
48 test(S("abcdefghij"), S(""));
49 test(S("abcdefghij"), S("12345"));
50 test(S("abcdefghij"), S("1234567890"));
51 test(S("abcdefghij"), S("12345678901234567890"));
52 test(S("abcdefghijklmnopqrst"), S(""));
53 test(S("abcdefghijklmnopqrst"), S("12345"));
54 test(S("abcdefghijklmnopqrst"), S("1234567890"));
55 test(S("abcdefghijklmnopqrst"), S("12345678901234567890"));
56 }
57 #if __cplusplus >= 201103L
58 {
59 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
60 test(S(""), S(""));
61 test(S(""), S("12345"));
62 test(S(""), S("1234567890"));
63 test(S(""), S("12345678901234567890"));
64 test(S("abcde"), S(""));
65 test(S("abcde"), S("12345"));
66 test(S("abcde"), S("1234567890"));
67 test(S("abcde"), S("12345678901234567890"));
68 test(S("abcdefghij"), S(""));
69 test(S("abcdefghij"), S("12345"));
70 test(S("abcdefghij"), S("1234567890"));
71 test(S("abcdefghij"), S("12345678901234567890"));
72 test(S("abcdefghijklmnopqrst"), S(""));
73 test(S("abcdefghijklmnopqrst"), S("12345"));
74 test(S("abcdefghijklmnopqrst"), S("1234567890"));
75 test(S("abcdefghijklmnopqrst"), S("12345678901234567890"));
76 }
77 #endif
78 }
79