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
22template <class Iter>
23void
24test(Iter first, Iter last, unsigned mc)
25{
26    std::basic_regex<typename std::iterator_traits<Iter>::value_type> r(first, last);
27    assert(r.flags() == std::regex_constants::ECMAScript);
28    assert(r.mark_count() == mc);
29}
30
31int main()
32{
33    typedef forward_iterator<std::string::const_iterator> F;
34    std::string s1("\\(a\\)");
35    std::string s2("\\(a[bc]\\)");
36    std::string s3("\\(a\\([bc]\\)\\)");
37    std::string s4("(a([bc]))");
38
39    test(F(s1.begin()), F(s1.end()), 0);
40    test(F(s2.begin()), F(s2.end()), 0);
41    test(F(s3.begin()), F(s3.end()), 0);
42    test(F(s4.begin()), F(s4.end()), 2);
43}
44