70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
// Copyright (C) 2016-2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-faligned-new" }
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// { dg-do run { target c++11 } }
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// { dg-require-cstdint "" }
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#include <ext/malloc_allocator.h>
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#include <cstddef>
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#include <cstdint>
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#include <testsuite_hooks.h>
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constexpr std::size_t align = alignof(std::max_align_t) * 2;
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struct X {
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alignas(align) char c;
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};
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void
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test01()
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{
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__gnu_cxx::malloc_allocator<X> a;
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#if __cplusplus > 201402L && _GLIBCXX_HAVE_ALIGNED_ALLOC
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X* p1 = a.allocate(1);
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VERIFY( (reinterpret_cast<std::uintptr_t>(p1) % align) == 0 );
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a.deallocate(p1, 1);
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X* p2 = a.allocate(20);
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VERIFY( (reinterpret_cast<std::uintptr_t>(p2) % align) == 0 );
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a.deallocate(p2, 20);
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#else
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// Allocating for extended alignment is unreliable without aligned_alloc()
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try
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{
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X* p1 = a.allocate(1);
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VERIFY( (reinterpret_cast<std::uintptr_t>(p1) % align) == 0 );
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a.deallocate(p1, 1);
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}
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catch (const std::bad_alloc&)
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{ }
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try
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{
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X* p2 = a.allocate(20);
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VERIFY( (reinterpret_cast<std::uintptr_t>(p2) % align) == 0 );
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a.deallocate(p2, 20);
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}
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catch (const std::bad_alloc&)
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{ }
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#endif
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}
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int
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main()
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{
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test01();
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}
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