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 // template <class charT, class traits = regex_traits<charT>> class basic_regex;
13
14 // template <class ForwardIterator>
15 // basic_regex(ForwardIterator first, ForwardIterator last);
16
17 #include <regex>
18 #include <cassert>
19
20 #include "test_iterators.h"
21 #include "test_macros.h"
22
23 template <class Iter>
24 void
test(Iter first,Iter last,unsigned mc)25 test(Iter first, Iter last, unsigned mc)
26 {
27 std::basic_regex<typename std::iterator_traits<Iter>::value_type> r(first, last);
28 assert(r.flags() == std::regex_constants::ECMAScript);
29 assert(r.mark_count() == mc);
30 }
31
main()32 int main()
33 {
34 typedef forward_iterator<std::string::const_iterator> F;
35 std::string s1("\\(a\\)");
36 std::string s2("\\(a[bc]\\)");
37 std::string s3("\\(a\\([bc]\\)\\)");
38 std::string s4("(a([bc]))");
39
40 test(F(s1.begin()), F(s1.end()), 0);
41 test(F(s2.begin()), F(s2.end()), 0);
42 test(F(s3.begin()), F(s3.end()), 0);
43 test(F(s4.begin()), F(s4.end()), 2);
44 }
45