libstdc++-v3/testsuite/27_io/filesystem/path/assign/copy.cc

   1 // { dg-do run { target c++17 } }
   2 // { dg-options "-Wno-self-move" }
   3
   4 // Copyright (C) 2014-2025 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <filesystem>
  22 #include <testsuite_fs.h>
  23 #include <testsuite_hooks.h>
  24
  25 using std::filesystem::path;
  26 using __gnu_test::compare_paths;
  27
  28 void
  29 test01()
  30 {
  31   for (const path p : __gnu_test::test_paths)
  32   {
  33     path copy;
  34     copy = p;
  35     __gnu_test::compare_paths(p, copy);
  36   }
  37 }
  38
  39 void
  40 test02()
  41 {
  42   for (const path p : __gnu_test::test_paths)
  43   {
  44     path copy = p;
  45     path move;
  46     move = std::move(copy);
  47     __gnu_test::compare_paths(p, move);
  48   }
  49 }
  50
  51 void
  52 test03()
  53 {
  54   // self assignment should have no effect
  55   const path orig = "foo/bar/baz";
  56   path p = orig;
  57   const auto ptr1 = p.c_str();
  58   const auto ptr2 = p.begin()->c_str();
  59   p = std::move(p);
  60   __gnu_test::compare_paths(p, orig);
  61   p = p;
  62   __gnu_test::compare_paths(p, orig);
  63   VERIFY( ptr1 == p.c_str() );
  64   VERIFY( ptr2 == p.begin()->c_str() );
  65 }
  66
  67 void
  68 test04()
  69 {
  70   // PR libstdc++/90557
  71   path p1 = "a/b/c";
  72   const path p2 = "d/e";
  73   const path p3 = p2;
  74   p1.clear();
  75   p1 = p2;
  76   __gnu_test::compare_paths(p1, p2);
  77   __gnu_test::compare_paths(p1, p3);
  78   __gnu_test::compare_paths(p2, p3);
  79 }
  80
  81 int
  82 main()
  83 {
  84   test01();
  85   test02();
  86   test03();
  87   test04();
  88 }