gcc/libstdc++-v3/testsuite/18_support/destroying_delete.cc
Jonathan Wakely 6bdbf0f37b libstdc++: Break header cycle between <new> and <exception>
The <new> and <exception> headers each include each other, which makes
building them as header-units "exciting". The <new> header only needs
the definition of std::exception (in order to derive from it) which is
already in its own header, so just include that.

libstdc++-v3/ChangeLog:

	* include/bits/stl_iterator.h: Include <bits/exception_defines.h>
	for definitions of __try, __catch and __throw_exception_again.
	(counted_iterator::operator++(int)): Use __throw_exception_again
	instead of throw.
	* libsupc++/new: Include <bits/exception.h> not <exception>.
	* libsupc++/new_opvnt.cc: Include <bits/exception_defines.h>.
	* testsuite/18_support/destroying_delete.cc: Include
	<type_traits> for std::is_same_v definition.
	* testsuite/20_util/variant/index_type.cc: Qualify size_t.
2020-09-02 13:56:32 +01:00

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// Copyright (C) 2019-2020 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++2a" }
// { dg-do run { target c++2a } }
#include <new>
#include <type_traits>
#include <testsuite_hooks.h>
#ifndef __cpp_lib_destroying_delete
# error "Feature-test macro for destroying_delete missing"
#elif __cpp_lib_destroying_delete != 201806L
# error "Feature-test macro for destroying_delete has wrong value"
#endif
const std::destroying_delete_t d{};
static_assert(std::is_same_v<decltype(d), decltype(std::destroying_delete)>);
struct X
{
static bool called;
void operator delete(X* p, std::destroying_delete_t)
{
called = true;
p->~X();
::operator delete(p);
}
};
bool X::called = false;
void
test01()
{
X* x = new X;
delete x;
VERIFY( X::called );
}
int main()
{
test01();
}