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 // 8.4.9 path decomposition [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 VERIFY( path("/foo/bar.txt").extension() == path(".txt") ); 33 VERIFY( path("/foo/bar.baz.txt").extension() == path(".txt") ); 34 VERIFY( path(".bar.baz.txt").extension() == path(".txt") ); 35 36 VERIFY( path(".profile").extension() == path("") ); 37 VERIFY( path(".profile.old").extension() == path(".old") ); 38 VERIFY( path("..abc").extension() == path(".abc") ); 39 VERIFY( path("...abc").extension() == path(".abc") ); 40 VERIFY( path("abc..def").extension() == path(".def") ); 41 VERIFY( path("abc...def").extension() == path(".def") ); 42 VERIFY( path("abc.").extension() == path(".") ); 43 VERIFY( path("abc..").extension() == path(".") ); 44 VERIFY( path("abc.d.").extension() == path(".") ); 45 VERIFY( path("..").extension() == path("") ); 46 VERIFY( path(".").extension() == path("") ); 47 48 VERIFY( path().extension() == path() ); 49 } 50 51 void test02()52test02() 53 { 54 for (const path& p : __gnu_test::test_paths) 55 { 56 auto stem = p.stem(); 57 auto ext = p.extension(); 58 auto file = p.filename(); 59 VERIFY( stem.native() + ext.native() == file.native() ); 60 } 61 } 62 63 int main()64main() 65 { 66 test01(); 67 test02(); 68 } 69