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 // <regex>
11
12 // class regex_iterator<BidirectionalIterator, charT, traits>
13
14 // regex_iterator operator++(int);
15
16 #include <regex>
17 #include <cassert>
18 #include "test_macros.h"
19
main()20 int main()
21 {
22 {
23 std::regex phone_numbers("\\d{3}-\\d{4}");
24 const char phone_book[] = "555-1234, 555-2345, 555-3456";
25 std::cregex_iterator i(std::begin(phone_book), std::end(phone_book), phone_numbers);
26 std::cregex_iterator i2 = i;
27 assert(i != std::cregex_iterator());
28 assert(i2!= std::cregex_iterator());
29 assert((*i).size() == 1);
30 assert((*i).position() == 0);
31 assert((*i).str() == "555-1234");
32 assert((*i2).size() == 1);
33 assert((*i2).position() == 0);
34 assert((*i2).str() == "555-1234");
35 i++;
36 assert(i != std::cregex_iterator());
37 assert(i2!= std::cregex_iterator());
38 assert((*i).size() == 1);
39 assert((*i).position() == 10);
40 assert((*i).str() == "555-2345");
41 assert((*i2).size() == 1);
42 assert((*i2).position() == 0);
43 assert((*i2).str() == "555-1234");
44 i++;
45 assert(i != std::cregex_iterator());
46 assert(i2!= std::cregex_iterator());
47 assert((*i).size() == 1);
48 assert((*i).position() == 20);
49 assert((*i).str() == "555-3456");
50 assert((*i2).size() == 1);
51 assert((*i2).position() == 0);
52 assert((*i2).str() == "555-1234");
53 i++;
54 assert(i == std::cregex_iterator());
55 assert(i2!= std::cregex_iterator());
56 assert((*i2).size() == 1);
57 assert((*i2).position() == 0);
58 assert((*i2).str() == "555-1234");
59 }
60 {
61 std::regex phone_numbers("\\d{3}-\\d{4}");
62 const char phone_book[] = "555-1234, 555-2345, 555-3456";
63 std::cregex_iterator i(std::begin(phone_book), std::end(phone_book), phone_numbers);
64 std::cregex_iterator i2 = i;
65 assert(i != std::cregex_iterator());
66 assert(i2!= std::cregex_iterator());
67 assert((*i).size() == 1);
68 assert((*i).position() == 0);
69 assert((*i).str() == "555-1234");
70 assert((*i2).size() == 1);
71 assert((*i2).position() == 0);
72 assert((*i2).str() == "555-1234");
73 ++i;
74 assert(i != std::cregex_iterator());
75 assert(i2!= std::cregex_iterator());
76 assert((*i).size() == 1);
77 assert((*i).position() == 10);
78 assert((*i).str() == "555-2345");
79 assert((*i2).size() == 1);
80 assert((*i2).position() == 0);
81 assert((*i2).str() == "555-1234");
82 ++i;
83 assert(i != std::cregex_iterator());
84 assert(i2!= std::cregex_iterator());
85 assert((*i).size() == 1);
86 assert((*i).position() == 20);
87 assert((*i).str() == "555-3456");
88 assert((*i2).size() == 1);
89 assert((*i2).position() == 0);
90 assert((*i2).str() == "555-1234");
91 ++i;
92 assert(i == std::cregex_iterator());
93 assert(i2!= std::cregex_iterator());
94 assert((*i2).size() == 1);
95 assert((*i2).position() == 0);
96 assert((*i2).str() == "555-1234");
97 }
98 { // https://bugs.llvm.org/show_bug.cgi?id=33681
99 std::regex rex(".*");
100 const char foo[] = "foo";
101 // The -1 is because we don't want the implicit null from the array.
102 std::cregex_iterator i(std::begin(foo), std::end(foo) - 1, rex);
103 std::cregex_iterator e;
104 assert(i != e);
105 assert((*i).size() == 1);
106 assert((*i).str() == "foo");
107
108 ++i;
109 assert(i != e);
110 assert((*i).size() == 1);
111 assert((*i).str() == "");
112
113 ++i;
114 assert(i == e);
115 }
116 }
117