1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <regex>
10
11 // template <class charT, class traits = regex_traits<charT>> class basic_regex;
12
13 // template <class ForwardIterator>
14 // basic_regex(ForwardIterator first, ForwardIterator last);
15
16 #include <regex>
17 #include <cassert>
18
19 #include "test_iterators.h"
20 #include "test_macros.h"
21
22 template <class Iter>
23 void
test(Iter first,Iter last,unsigned mc)24 test(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
main(int,char **)31 int main(int, char**)
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 return 0;
45 }
46