libstdc++-v3/testsuite/27_io/filesystem/iterators/97731.cc

   1 // Copyright (C) 2020-2024 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-do run { target c++17 } }
  19 // { dg-require-filesystem-ts "" }
  20
  21 #include <filesystem>
  22 #include <cerrno>
  23 #include <testsuite_hooks.h>
  24
  25 bool used_custom_readdir = false;
  26
  27 extern "C" void* readdir(void*)
  28 {
  29   used_custom_readdir = true;
  30   errno = EIO;
  31   return nullptr;
  32 }
  33
  34 void
  35 test01()
  36 {
  37   using std::filesystem::recursive_directory_iterator;
  38   std::error_code ec;
  39   recursive_directory_iterator it(".", ec);
  40   if (used_custom_readdir)
  41     VERIFY( ec.value() == EIO );
  42 }
  43
  44 int
  45 main()
  46 {
  47   test01();
  48 }