Mercurial > hg > CbC > CbC_gcc
view libstdc++-v3/testsuite/ext/malloc_allocator/overaligned.cc @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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// Copyright (C) 2016-2020 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 "-faligned-new" } // { dg-do run { target c++11 } } // { dg-require-cstdint "" } #include <ext/malloc_allocator.h> #include <cstddef> #include <cstdint> #include <testsuite_hooks.h> constexpr std::size_t align = alignof(std::max_align_t) * 2; struct X { alignas(align) char c; }; void test01() { __gnu_cxx::malloc_allocator<X> a; #if __cplusplus > 201402L && _GLIBCXX_HAVE_ALIGNED_ALLOC X* p1 = a.allocate(1); VERIFY( (reinterpret_cast<std::uintptr_t>(p1) % align) == 0 ); a.deallocate(p1, 1); X* p2 = a.allocate(20); VERIFY( (reinterpret_cast<std::uintptr_t>(p2) % align) == 0 ); a.deallocate(p2, 20); #else // Allocating for extended alignment is unreliable without aligned_alloc() try { X* p1 = a.allocate(1); VERIFY( (reinterpret_cast<std::uintptr_t>(p1) % align) == 0 ); a.deallocate(p1, 1); } catch (const std::bad_alloc&) { } try { X* p2 = a.allocate(20); VERIFY( (reinterpret_cast<std::uintptr_t>(p2) % align) == 0 ); a.deallocate(p2, 20); } catch (const std::bad_alloc&) { } #endif } int main() { test01(); }