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

   1 // Copyright (C) 2019-2020 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 "-std=gnu++17" }
  19 // { dg-do run { target c++17 } }
  20
  21 #include <filesystem>
  22 #include <testsuite_fs.h>
  23
  24 void
  25 test01()
  26 {
  27   // PR libstdc++/92853
  28   using std::filesystem::path;
  29   path p1{ "." }, p2{ "/" };
  30   p1 += p2;     // corrupts heap
  31   path p3{ p1 };        // CRASH!
  32   __gnu_test::compare_paths( p3, "./" );
  33 }
  34
  35 void
  36 test02()
  37 {
  38   using std::filesystem::path;
  39   path p1{ "." }, p2{ "////" };
  40   p1 += p2;
  41   path p3{ p1 };
  42   __gnu_test::compare_paths( p3, ".////" );
  43 }
  44
  45 void
  46 test03()
  47 {
  48   using std::filesystem::path;
  49   path p1{ "./" }, p2{ "/" };
  50   p1 += p2;
  51   path p3{ p1 };
  52   __gnu_test::compare_paths( p3, ".//" );
  53 }
  54
  55 int
  56 main()
  57 {
  58   test01();
  59   test02();
  60   test03();
  61 }