libstdc++-v3/testsuite/27_io/filesystem/path/decompose/root_directory.cc

   1 // { dg-do run { target c++17 } }
   2
   3 // Copyright (C) 2014-2022 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 30.10.7.4.9 path decomposition [fs.path.decompose]
  21
  22 #include <filesystem>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_fs.h>
  25
  26 using std::filesystem::path;
  27
  28 void
  29 test01()
  30 {
  31   path p1 = "foo/bar";
  32   VERIFY( p1.root_directory() == path() );
  33   path p2 = "/foo/bar";
  34   VERIFY( p2.root_directory() == path("/") );
  35   path p3 = "//foo";
  36 #ifdef __CYGWIN__
  37   VERIFY( p3.root_directory() == path() );
  38 #else
  39   VERIFY( p3.root_directory() == path("/") );
  40 #endif
  41   path p4 = "///foo";
  42   VERIFY( p4.root_directory() == path("/") );
  43 }
  44
  45 void
  46 test02()
  47 {
  48   for (const path p : __gnu_test::test_paths)
  49   {
  50     path rootdir = p.root_directory();
  51     VERIFY( !rootdir.has_relative_path() );
  52     if (!rootdir.empty())
  53 #if defined(__MINGW32__) || defined(__MINGW64__)
  54       VERIFY( rootdir.string() == "/" || rootdir.string() == "\\" );
  55 #else
  56       VERIFY( rootdir.string() == "/" );
  57 #endif
  58   }
  59 }
  60
  61 int
  62 main()
  63 {
  64   test01();
  65   test02();
  66 }