libstdc++-v3/testsuite/27_io/filesystem/path/assign/copy.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 #include <filesystem>
  21 #include <testsuite_fs.h>
  22 #include <testsuite_hooks.h>
  23
  24 using std::filesystem::path;
  25 using __gnu_test::compare_paths;
  26
  27 void
  28 test01()
  29 {
  30   for (const path p : __gnu_test::test_paths)
  31   {
  32     path copy;
  33     copy = p;
  34     __gnu_test::compare_paths(p, copy);
  35   }
  36 }
  37
  38 void
  39 test02()
  40 {
  41   for (const path p : __gnu_test::test_paths)
  42   {
  43     path copy = p;
  44     path move;
  45     move = std::move(copy);
  46     __gnu_test::compare_paths(p, move);
  47   }
  48 }
  49
  50 void
  51 test03()
  52 {
  53   // self assignment should have no effect
  54   const path orig = "foo/bar/baz";
  55   path p = orig;
  56   const auto ptr1 = p.c_str();
  57   const auto ptr2 = p.begin()->c_str();
  58   p = std::move(p);
  59   __gnu_test::compare_paths(p, orig);
  60   p = p;
  61   __gnu_test::compare_paths(p, orig);
  62   VERIFY( ptr1 == p.c_str() );
  63   VERIFY( ptr2 == p.begin()->c_str() );
  64 }
  65
  66 void
  67 test04()
  68 {
  69   // PR libstdc++/90557
  70   path p1 = "a/b/c";
  71   const path p2 = "d/e";
  72   const path p3 = p2;
  73   p1.clear();
  74   p1 = p2;
  75   __gnu_test::compare_paths(p1, p2);
  76   __gnu_test::compare_paths(p1, p3);
  77   __gnu_test::compare_paths(p2, p3);
  78 }
  79
  80 int
  81 main()
  82 {
  83   test01();
  84   test02();
  85   test03();
  86   test04();
  87 }