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// Copyright (C) 2015-2019 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=gnu++17" }
// { dg-require-cstdint "" }
#include <any>
#include <cstdint>
#include <testsuite_hooks.h>
// Alignment requiremnts of this type prevent it being stored in 'any'
struct alignas(2 * alignof(void*)) X { };
bool
stored_internally(void* obj, const std::any& a)
{
std::uintptr_t a_addr = reinterpret_cast<std::uintptr_t>(&a);
std::uintptr_t a_end = a_addr + sizeof(a);
std::uintptr_t obj_addr = reinterpret_cast<std::uintptr_t>(obj);
return (a_addr <= obj_addr) && (obj_addr < a_end);
}
void
test01()
{
std::any a = X{};
X& x = std::any_cast<X&>(a);
VERIFY( !stored_internally(&x, a) );
a = 'X';
char& c = std::any_cast<char&>(a);
VERIFY( stored_internally(&c, a) );
}
int
main()
{
test01();
}
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