libstdc++-v3/testsuite/20_util/any/cons/nontrivial.cc

   1 // Copyright (C) 2015-2018 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
  20 #include <any>
  21 #include <testsuite_hooks.h>
  22
  23 struct LocationAware
  24 {
  25   LocationAware() { }
  26   ~LocationAware() { VERIFY(self == this); }
  27   LocationAware(const LocationAware&) { }
  28   LocationAware& operator=(const LocationAware&) { return *this; }
  29   LocationAware(LocationAware&&) noexcept { }
  30   LocationAware& operator=(LocationAware&&) noexcept { return *this; }
  31
  32   void* const self = this;
  33 };
  34 static_assert(std::is_nothrow_move_constructible<LocationAware>::value, "");
  35 static_assert(!std::is_trivially_copyable<LocationAware>::value, "");
  36
  37 using std::any;
  38
  39 void
  40 test01()
  41 {
  42
  43   LocationAware l;
  44   any a = l;
  45 }
  46
  47 void
  48 test02()
  49 {
  50   LocationAware l;
  51   any a = l;
  52   any b = a;
  53   {
  54     any tmp = std::move(a);
  55     a = std::move(b);
  56     b = std::move(tmp);
  57   }
  58 }
  59
  60 void
  61 test03()
  62 {
  63   LocationAware l;
  64   any a = l;
  65   any b = a;
  66   swap(a, b);
  67 }
  68
  69 int
  70 main()
  71 {
  72   test01();
  73   test02();
  74   test03();
  75 }