libstdc++-v3/testsuite/experimental/filesystem/operations/read_symlink.cc

   1 // Copyright (C) 2016-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-options "-DUSE_FILESYSTEM_TS -lstdc++fs" }
  19 // { dg-do run { target c++11 } }
  20 // { dg-require-filesystem-ts "" }
  21 // { dg-require-target-fs-symlinks "" }
  22
  23 #include <experimental/filesystem>
  24 #include <testsuite_hooks.h>
  25 #include <testsuite_fs.h>
  26
  27 namespace fs = std::experimental::filesystem;
  28
  29 void
  30 test01()
  31 {
  32   auto p = __gnu_test::nonexistent_path();
  33   std::error_code ec;
  34
  35   (void) read_symlink(p, ec);
  36   VERIFY( ec );
  37
  38   fs::path tgt = ".";
  39   create_symlink(tgt, p);
  40
  41   auto result = read_symlink(p, ec);
  42   VERIFY( !ec );
  43   VERIFY( result == tgt );
  44
  45   remove(p);
  46 }
  47
  48 int
  49 main()
  50 {
  51   test01();
  52 }