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()31test01() 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()42test02() 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()62main() 63 { 64 test01(); 65 test02(); 66 } 67