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 // int compare(const basic_string& str) const
13
14 #include <string>
15 #include <cassert>
16
17 #include "min_allocator.h"
18
sign(int x)19 int sign(int x)
20 {
21 if (x == 0)
22 return 0;
23 if (x < 0)
24 return -1;
25 return 1;
26 }
27
28 template <class S>
29 void
test(const S & s,const S & str,int x)30 test(const S& s, const S& str, int x)
31 {
32 assert(sign(s.compare(str)) == sign(x));
33 }
34
main()35 int main()
36 {
37 {
38 typedef std::string S;
39 test(S(""), S(""), 0);
40 test(S(""), S("abcde"), -5);
41 test(S(""), S("abcdefghij"), -10);
42 test(S(""), S("abcdefghijklmnopqrst"), -20);
43 test(S("abcde"), S(""), 5);
44 test(S("abcde"), S("abcde"), 0);
45 test(S("abcde"), S("abcdefghij"), -5);
46 test(S("abcde"), S("abcdefghijklmnopqrst"), -15);
47 test(S("abcdefghij"), S(""), 10);
48 test(S("abcdefghij"), S("abcde"), 5);
49 test(S("abcdefghij"), S("abcdefghij"), 0);
50 test(S("abcdefghij"), S("abcdefghijklmnopqrst"), -10);
51 test(S("abcdefghijklmnopqrst"), S(""), 20);
52 test(S("abcdefghijklmnopqrst"), S("abcde"), 15);
53 test(S("abcdefghijklmnopqrst"), S("abcdefghij"), 10);
54 test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), 0);
55 }
56 #if __cplusplus >= 201103L
57 {
58 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
59 test(S(""), S(""), 0);
60 test(S(""), S("abcde"), -5);
61 test(S(""), S("abcdefghij"), -10);
62 test(S(""), S("abcdefghijklmnopqrst"), -20);
63 test(S("abcde"), S(""), 5);
64 test(S("abcde"), S("abcde"), 0);
65 test(S("abcde"), S("abcdefghij"), -5);
66 test(S("abcde"), S("abcdefghijklmnopqrst"), -15);
67 test(S("abcdefghij"), S(""), 10);
68 test(S("abcdefghij"), S("abcde"), 5);
69 test(S("abcdefghij"), S("abcdefghij"), 0);
70 test(S("abcdefghij"), S("abcdefghijklmnopqrst"), -10);
71 test(S("abcdefghijklmnopqrst"), S(""), 20);
72 test(S("abcdefghijklmnopqrst"), S("abcde"), 15);
73 test(S("abcdefghijklmnopqrst"), S("abcdefghij"), 10);
74 test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), 0);
75 }
76 #endif
77 }
78