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 // size_type rfind(const charT* s, size_type pos = npos) const;
13
14 #include <string>
15 #include <cassert>
16
17 #include "min_allocator.h"
18
19 template <class S>
20 void
test(const S & s,const typename S::value_type * str,typename S::size_type pos,typename S::size_type x)21 test(const S& s, const typename S::value_type* str, typename S::size_type pos,
22 typename S::size_type x)
23 {
24 assert(s.rfind(str, pos) == x);
25 if (x != S::npos)
26 {
27 typename S::size_type n = S::traits_type::length(str);
28 assert(x <= pos && x + n <= s.size());
29 }
30 }
31
32 template <class S>
33 void
test(const S & s,const typename S::value_type * str,typename S::size_type x)34 test(const S& s, const typename S::value_type* str, typename S::size_type x)
35 {
36 assert(s.rfind(str) == x);
37 if (x != S::npos)
38 {
39 typename S::size_type pos = s.size();
40 typename S::size_type n = S::traits_type::length(str);
41 assert(x <= pos && x + n <= s.size());
42 }
43 }
44
45 template <class S>
test0()46 void test0()
47 {
48 test(S(""), "", 0, 0);
49 test(S(""), "abcde", 0, S::npos);
50 test(S(""), "abcdeabcde", 0, S::npos);
51 test(S(""), "abcdeabcdeabcdeabcde", 0, S::npos);
52 test(S(""), "", 1, 0);
53 test(S(""), "abcde", 1, S::npos);
54 test(S(""), "abcdeabcde", 1, S::npos);
55 test(S(""), "abcdeabcdeabcdeabcde", 1, S::npos);
56 test(S("abcde"), "", 0, 0);
57 test(S("abcde"), "abcde", 0, 0);
58 test(S("abcde"), "abcdeabcde", 0, S::npos);
59 test(S("abcde"), "abcdeabcdeabcdeabcde", 0, S::npos);
60 test(S("abcde"), "", 1, 1);
61 test(S("abcde"), "abcde", 1, 0);
62 test(S("abcde"), "abcdeabcde", 1, S::npos);
63 test(S("abcde"), "abcdeabcdeabcdeabcde", 1, S::npos);
64 test(S("abcde"), "", 2, 2);
65 test(S("abcde"), "abcde", 2, 0);
66 test(S("abcde"), "abcdeabcde", 2, S::npos);
67 test(S("abcde"), "abcdeabcdeabcdeabcde", 2, S::npos);
68 test(S("abcde"), "", 4, 4);
69 test(S("abcde"), "abcde", 4, 0);
70 test(S("abcde"), "abcdeabcde", 4, S::npos);
71 test(S("abcde"), "abcdeabcdeabcdeabcde", 4, S::npos);
72 test(S("abcde"), "", 5, 5);
73 test(S("abcde"), "abcde", 5, 0);
74 test(S("abcde"), "abcdeabcde", 5, S::npos);
75 test(S("abcde"), "abcdeabcdeabcdeabcde", 5, S::npos);
76 test(S("abcde"), "", 6, 5);
77 test(S("abcde"), "abcde", 6, 0);
78 test(S("abcde"), "abcdeabcde", 6, S::npos);
79 test(S("abcde"), "abcdeabcdeabcdeabcde", 6, S::npos);
80 test(S("abcdeabcde"), "", 0, 0);
81 test(S("abcdeabcde"), "abcde", 0, 0);
82 test(S("abcdeabcde"), "abcdeabcde", 0, 0);
83 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, S::npos);
84 test(S("abcdeabcde"), "", 1, 1);
85 test(S("abcdeabcde"), "abcde", 1, 0);
86 test(S("abcdeabcde"), "abcdeabcde", 1, 0);
87 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, S::npos);
88 test(S("abcdeabcde"), "", 5, 5);
89 test(S("abcdeabcde"), "abcde", 5, 5);
90 test(S("abcdeabcde"), "abcdeabcde", 5, 0);
91 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, S::npos);
92 test(S("abcdeabcde"), "", 9, 9);
93 test(S("abcdeabcde"), "abcde", 9, 5);
94 test(S("abcdeabcde"), "abcdeabcde", 9, 0);
95 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, S::npos);
96 test(S("abcdeabcde"), "", 10, 10);
97 test(S("abcdeabcde"), "abcde", 10, 5);
98 test(S("abcdeabcde"), "abcdeabcde", 10, 0);
99 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, S::npos);
100 test(S("abcdeabcde"), "", 11, 10);
101 test(S("abcdeabcde"), "abcde", 11, 5);
102 test(S("abcdeabcde"), "abcdeabcde", 11, 0);
103 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, S::npos);
104 test(S("abcdeabcdeabcdeabcde"), "", 0, 0);
105 test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 0);
106 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 0);
107 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0);
108 test(S("abcdeabcdeabcdeabcde"), "", 1, 1);
109 test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 0);
110 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 0);
111 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 0);
112 test(S("abcdeabcdeabcdeabcde"), "", 10, 10);
113 test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 10);
114 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 10);
115 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 0);
116 test(S("abcdeabcdeabcdeabcde"), "", 19, 19);
117 test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 15);
118 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 10);
119 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 0);
120 test(S("abcdeabcdeabcdeabcde"), "", 20, 20);
121 test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 15);
122 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 10);
123 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 0);
124 test(S("abcdeabcdeabcdeabcde"), "", 21, 20);
125 test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 15);
126 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 10);
127 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 0);
128 }
129
130 template <class S>
test1()131 void test1()
132 {
133 test(S(""), "", 0);
134 test(S(""), "abcde", S::npos);
135 test(S(""), "abcdeabcde", S::npos);
136 test(S(""), "abcdeabcdeabcdeabcde", S::npos);
137 test(S("abcde"), "", 5);
138 test(S("abcde"), "abcde", 0);
139 test(S("abcde"), "abcdeabcde", S::npos);
140 test(S("abcde"), "abcdeabcdeabcdeabcde", S::npos);
141 test(S("abcdeabcde"), "", 10);
142 test(S("abcdeabcde"), "abcde", 5);
143 test(S("abcdeabcde"), "abcdeabcde", 0);
144 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", S::npos);
145 test(S("abcdeabcdeabcdeabcde"), "", 20);
146 test(S("abcdeabcdeabcdeabcde"), "abcde", 15);
147 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10);
148 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0);
149 }
150
main()151 int main()
152 {
153 {
154 typedef std::string S;
155 test0<S>();
156 test1<S>();
157 }
158 #if __cplusplus >= 201103L
159 {
160 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
161 test0<S>();
162 test1<S>();
163 }
164 #endif
165 }
166