libstdc++-v3/testsuite/20_util/any/modifiers/83658.cc

   1 // Copyright (C) 2018-2020 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 <any>
  22 #include <new>
  23 #include <testsuite_hooks.h>
  24
  25 struct E : std::bad_alloc { };
  26
  27 struct X
  28 {
  29     X() = default;
  30     X(std::initializer_list<int>) { }
  31
  32     // Prevents small-object optimization:
  33     X(const X&) noexcept(false) { }
  34
  35     static void* operator new(std::size_t) { throw E{}; }
  36     static void operator delete(void*, std::size_t) noexcept { }
  37 };
  38
  39 void
  40 test01()
  41 {
  42   std::any a;
  43   try
  44   {
  45     a.emplace<X>();
  46     VERIFY(false);
  47   }
  48   catch (const E&)
  49   {
  50     VERIFY( !a.has_value() );
  51   }
  52 }
  53
  54 void
  55 test02()
  56 {
  57   std::any a;
  58   try
  59   {
  60     a.emplace<X>(std::initializer_list<int>{});
  61     VERIFY(false);
  62   }
  63   catch (const E&)
  64   {
  65     VERIFY( !a.has_value() );
  66   }
  67 }
  68
  69 int
  70 main()
  71 {
  72   test01();
  73   test02();
  74 }