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()30test01() 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()39test02() 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()51main() 52 { 53 test01(); 54 test02(); 55 } 56