1 // { dg-options "-std=gnu++17" }
2 // { dg-do run { target c++17 } }
3 
4 // Copyright (C) 2014-2020 Free Software Foundation, Inc.
5 //
6 // This file is part of the GNU ISO C++ Library.  This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
10 // any later version.
11 
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 // GNU General Public License for more details.
16 
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3.  If not see
19 // <http://www.gnu.org/licenses/>.
20 
21 // C++17 30.10.7.4.9 path decomposition [fs.path.decompose]
22 
23 #include <filesystem>
24 #include <testsuite_hooks.h>
25 #include <testsuite_fs.h>
26 
27 using std::filesystem::path;
28 
29 void
test01()30 test01()
31 {
32   path p1 = "foo/bar";
33   VERIFY( p1.root_path() == path() );
34   path p2 = "/foo/bar";
35   VERIFY( p2.root_path() == path("/") );
36 }
37 
38 void
test02()39 test02()
40 {
41   for (const path& p : __gnu_test::test_paths)
42   {
43     path rootp = p.root_path();
44     path rootn = p.root_name();
45     path rootd = p.root_directory();
46     VERIFY( rootp == (rootn / rootd) );
47   }
48 }
49 
50 int
main()51 main()
52 {
53   test01();
54   test02();
55 }
56