1 // { dg-options "-std=gnu++17" }
2
3 // Copyright (C) 2014-2019 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
19
20 // basic_string_view::to_string
21
22 #include <string_view>
23 #include <string>
24 #include <algorithm>
25 #include <testsuite_hooks.h>
26 #include <testsuite_allocator.h>
27
28 void
test01()29 test01()
30 {
31 const char str_lit[] = "123456789A";
32 const std::string_view sv(str_lit);
33 char buffer[4] = { 0 };
34
35 std::string s1{sv};
36 VERIFY( s1 == str_lit );
37 using test_alloc = __gnu_test::tracker_allocator<char>;
38 std::basic_string<char, std::char_traits<char>, test_alloc>
39 s2{sv, test_alloc{}};
40 static_assert( std::is_same<decltype(s2)::allocator_type, test_alloc>::value,
41 "to_string() uses custom allocator" );
42 VERIFY( std::equal(s1.begin(), s1.end(), s2.begin(), s2.end()) );
43 auto s3 = static_cast<std::string>(sv);
44 VERIFY( s3 == s1 );
45 }
46
47 int
main()48 main()
49 {
50 test01();
51 }
52