1 // { dg-options "-DUSE_FILESYSTEM_TS -lstdc++fs" }
2 // { dg-do run { target c++11 } }
3 // { dg-require-filesystem-ts "" }
4 
5 // Copyright (C) 2014-2019 Free Software Foundation, Inc.
6 //
7 // This file is part of the GNU ISO C++ Library.  This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
11 // any later version.
12 
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 // GNU General Public License for more details.
17 
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3.  If not see
20 // <http://www.gnu.org/licenses/>.
21 
22 // 8.4.9 path decomposition [path.decompose]
23 
24 #include <experimental/filesystem>
25 #include <testsuite_hooks.h>
26 #include <testsuite_fs.h>
27 
28 using std::experimental::filesystem::path;
29 
30 void
test01()31 test01()
32 {
33   path p1 = "foo";
34   VERIFY( p1.relative_path() == p1 );
35   path p2 = "foo/bar";
36   VERIFY( p2.relative_path() == p2 );
37   path p3 = "/foo/bar";
38   VERIFY( p3.relative_path() == p2 );
39 }
40 
41 void
test02()42 test02()
43 {
44   for (const path& p : __gnu_test::test_paths)
45   {
46     bool after_root = false;
47     const path prel = p.relative_path();
48     VERIFY( !prel.has_root_name() );
49     path rel;
50     for (const auto& cmpt : p)
51     {
52       if (!cmpt.has_root_path())
53         after_root = true;
54       if (after_root)
55         rel /= cmpt;
56     }
57     VERIFY( prel == rel );
58   }
59 }
60 
61 int
main()62 main()
63 {
64   test01();
65   test02();
66 }
67