string_size.pass.cpp revision 4bd6cc9f30fb15f61d1e3f2df0bf11d633c04ebe 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <string>
11
12// size_type rfind(const basic_string& str, size_type pos = npos) const;
13
14#include <string>
15#include <cassert>
16
17template <class S>
18void
19test(const S& s, const S& str, typename S::size_type pos, typename S::size_type x)
20{
21    assert(s.rfind(str, pos) == x);
22    if (x != S::npos)
23        assert(x <= pos && x + str.size() <= s.size());
24}
25
26template <class S>
27void
28test(const S& s, const S& str, typename S::size_type x)
29{
30    assert(s.rfind(str) == x);
31    if (x != S::npos)
32        assert(0 <= x && x + str.size() <= s.size());
33}
34
35typedef std::string S;
36
37void test0()
38{
39    test(S(""), S(""), 0, 0);
40    test(S(""), S("abcde"), 0, S::npos);
41    test(S(""), S("abcdeabcde"), 0, S::npos);
42    test(S(""), S("abcdeabcdeabcdeabcde"), 0, S::npos);
43    test(S(""), S(""), 1, 0);
44    test(S(""), S("abcde"), 1, S::npos);
45    test(S(""), S("abcdeabcde"), 1, S::npos);
46    test(S(""), S("abcdeabcdeabcdeabcde"), 1, S::npos);
47    test(S("abcde"), S(""), 0, 0);
48    test(S("abcde"), S("abcde"), 0, 0);
49    test(S("abcde"), S("abcdeabcde"), 0, S::npos);
50    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 0, S::npos);
51    test(S("abcde"), S(""), 1, 1);
52    test(S("abcde"), S("abcde"), 1, 0);
53    test(S("abcde"), S("abcdeabcde"), 1, S::npos);
54    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
55    test(S("abcde"), S(""), 2, 2);
56    test(S("abcde"), S("abcde"), 2, 0);
57    test(S("abcde"), S("abcdeabcde"), 2, S::npos);
58    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 2, S::npos);
59    test(S("abcde"), S(""), 4, 4);
60    test(S("abcde"), S("abcde"), 4, 0);
61    test(S("abcde"), S("abcdeabcde"), 4, S::npos);
62    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 4, S::npos);
63    test(S("abcde"), S(""), 5, 5);
64    test(S("abcde"), S("abcde"), 5, 0);
65    test(S("abcde"), S("abcdeabcde"), 5, S::npos);
66    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 5, S::npos);
67    test(S("abcde"), S(""), 6, 5);
68    test(S("abcde"), S("abcde"), 6, 0);
69    test(S("abcde"), S("abcdeabcde"), 6, S::npos);
70    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 6, S::npos);
71    test(S("abcdeabcde"), S(""), 0, 0);
72    test(S("abcdeabcde"), S("abcde"), 0, 0);
73    test(S("abcdeabcde"), S("abcdeabcde"), 0, 0);
74    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 0, S::npos);
75    test(S("abcdeabcde"), S(""), 1, 1);
76    test(S("abcdeabcde"), S("abcde"), 1, 0);
77    test(S("abcdeabcde"), S("abcdeabcde"), 1, 0);
78    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
79    test(S("abcdeabcde"), S(""), 5, 5);
80    test(S("abcdeabcde"), S("abcde"), 5, 5);
81    test(S("abcdeabcde"), S("abcdeabcde"), 5, 0);
82    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 5, S::npos);
83    test(S("abcdeabcde"), S(""), 9, 9);
84    test(S("abcdeabcde"), S("abcde"), 9, 5);
85    test(S("abcdeabcde"), S("abcdeabcde"), 9, 0);
86    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 9, S::npos);
87    test(S("abcdeabcde"), S(""), 10, 10);
88    test(S("abcdeabcde"), S("abcde"), 10, 5);
89    test(S("abcdeabcde"), S("abcdeabcde"), 10, 0);
90    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 10, S::npos);
91    test(S("abcdeabcde"), S(""), 11, 10);
92    test(S("abcdeabcde"), S("abcde"), 11, 5);
93    test(S("abcdeabcde"), S("abcdeabcde"), 11, 0);
94    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 11, S::npos);
95    test(S("abcdeabcdeabcdeabcde"), S(""), 0, 0);
96    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 0, 0);
97    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 0, 0);
98    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 0, 0);
99    test(S("abcdeabcdeabcdeabcde"), S(""), 1, 1);
100    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 1, 0);
101    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 1, 0);
102    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 1, 0);
103    test(S("abcdeabcdeabcdeabcde"), S(""), 10, 10);
104    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 10, 10);
105    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 10, 10);
106    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 10, 0);
107    test(S("abcdeabcdeabcdeabcde"), S(""), 19, 19);
108    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 19, 15);
109    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 19, 10);
110    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 19, 0);
111    test(S("abcdeabcdeabcdeabcde"), S(""), 20, 20);
112    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 20, 15);
113    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 20, 10);
114    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 20, 0);
115    test(S("abcdeabcdeabcdeabcde"), S(""), 21, 20);
116    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 21, 15);
117    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 21, 10);
118    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 21, 0);
119}
120
121void test1()
122{
123    test(S(""), S(""), 0);
124    test(S(""), S("abcde"), S::npos);
125    test(S(""), S("abcdeabcde"), S::npos);
126    test(S(""), S("abcdeabcdeabcdeabcde"), S::npos);
127    test(S("abcde"), S(""), 5);
128    test(S("abcde"), S("abcde"), 0);
129    test(S("abcde"), S("abcdeabcde"), S::npos);
130    test(S("abcde"), S("abcdeabcdeabcdeabcde"), S::npos);
131    test(S("abcdeabcde"), S(""), 10);
132    test(S("abcdeabcde"), S("abcde"), 5);
133    test(S("abcdeabcde"), S("abcdeabcde"), 0);
134    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), S::npos);
135    test(S("abcdeabcdeabcdeabcde"), S(""), 20);
136    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 15);
137    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 10);
138    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 0);
139}
140
141int main()
142{
143    test0();
144    test1();
145}
146