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 // <string_view>
10 
11 // template<class Allocator>
12 // basic_string_view(const basic_string<_CharT, _Traits, Allocator>& _str) noexcept
13 
14 #include <string_view>
15 #include <string>
16 #include <cassert>
17 
18 struct dummy_char_traits : public std::char_traits<char> {};
19 
20 int main(int, char**) {
21     using string_view = std::basic_string_view<char>;
22     using string      = std::              basic_string     <char, dummy_char_traits>;
23 
24     {
25     string s{"QBCDE"};
26     string_view sv1 ( s );
27     assert ( sv1.size() == s.size());
28     assert ( sv1.data() == s.data());
29     }
30 
31   return 0;
32 }
33