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 // UNSUPPORTED: c++98, c++03, c++11, c++14
12 // UNSUPPORTED: libcpp-no-deduction-guides
13
14
15 // template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
16 // vector(InputIterator, InputIterator, Allocator = Allocator())
17 // -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>;
18 //
19
20
21 #include <regex>
22 #include <string>
23 #include <iterator>
24 #include <cassert>
25 #include <cstddef>
26
27
main()28 int main()
29 {
30 // Test the explicit deduction guides
31 {
32 // basic_regex(ForwardIterator, ForwardIterator)
33 // <int> is not an iterator
34 std::basic_regex re(23, 34); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'basic_regex'}}
35 }
36
37 {
38 // basic_regex(ForwardIterator, ForwardIterator, flag_type)
39 // <double> is not an iterator
40 std::basic_regex re(23.0, 34.0, std::regex_constants::basic); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'basic_regex'}}
41 }
42
43 // Test the implicit deduction guides
44
45 }
46