libstdc++-v3/testsuite/20_util/any/cons/2.cc

   1 // { dg-options "-std=gnu++17" }
   2 // { dg-do run { target c++17 } }
   3
   4 // Copyright (C) 2014-2020 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 <any>
  22 #include <testsuite_hooks.h>
  23
  24 using std::any;
  25 using std::any_cast;
  26
  27 bool moved = false;
  28 bool copied = false;
  29
  30 struct X
  31 {
  32   X() = default;
  33   X(const X&) { copied = true; }
  34   X(X&& x) { moved = true; }
  35 };
  36
  37 struct X2
  38 {
  39   X2() = default;
  40   X2(const X2&) { copied = true; }
  41   X2(X2&& x) noexcept { moved = true; }
  42 };
  43
  44 void test01()
  45 {
  46   moved = false;
  47   X x;
  48   any a1(x);
  49   VERIFY(moved == false);
  50   any a2(std::move(x));
  51   VERIFY(moved == true);
  52 }
  53
  54 void test02()
  55 {
  56   moved = false;
  57   X x;
  58   any a1(x);
  59   VERIFY(moved == false);
  60   copied = false;
  61   any a2(std::move(a1));
  62   VERIFY(copied == false);
  63 }
  64
  65 void test03()
  66 {
  67   moved = false;
  68   X2 x;
  69   any a1(x);
  70   VERIFY(moved == false);
  71   copied = false;
  72   any a2(std::move(a1));
  73   VERIFY(copied == false);
  74   VERIFY(moved == true);
  75 }
  76
  77 int main()
  78 {
  79   test01();
  80   test02();
  81   test03();
  82 }