libstdc++-v3/testsuite/27_io/filesystem/path/concat/92853.cc

   1 // Copyright (C) 2019-2021 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
  20 #include <filesystem>
  21 #include <testsuite_fs.h>
  22
  23 void
  24 test01()
  25 {
  26   // PR libstdc++/92853
  27   using std::filesystem::path;
  28   path p1{ "." }, p2{ "/" };
  29   p1 += p2;     // corrupts heap
  30   path p3{ p1 };        // CRASH!
  31   __gnu_test::compare_paths( p3, "./" );
  32 }
  33
  34 void
  35 test02()
  36 {
  37   using std::filesystem::path;
  38   path p1{ "." }, p2{ "////" };
  39   p1 += p2;
  40   path p3{ p1 };
  41   __gnu_test::compare_paths( p3, ".////" );
  42 }
  43
  44 void
  45 test03()
  46 {
  47   using std::filesystem::path;
  48   path p1{ "./" }, p2{ "/" };
  49   p1 += p2;
  50   path p3{ p1 };
  51   __gnu_test::compare_paths( p3, ".//" );
  52 }
  53
  54 int
  55 main()
  56 {
  57   test01();
  58   test02();
  59   test03();
  60 }