15139af6fb
libstdc++-v3/ChangeLog: * include/bits/align.h (align): Fix overflow handling. * testsuite/20_util/align/3.cc: New test.
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// { dg-do run { target c++11 } }
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// 2020-09-20 Glen Joseph Fernandes <glenjofe@gmail.com>
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// Copyright (C) 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 terms
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// C++11 [ptr.align] (20.6.5): std::align
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#include <memory>
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#include <testsuite_hooks.h>
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void test01()
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{
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void* p1 = reinterpret_cast<void*>(5);
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void* p2 = p1;
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std::size_t s1 = 3072;
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std::size_t s2 = s1;
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VERIFY(std::align(1024, static_cast<std::size_t>(-1), p1, s1) == nullptr);
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VERIFY(p1 == p2);
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VERIFY(s1 == s2);
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}
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void test02()
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{
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void* p1 = reinterpret_cast<void*>(1);
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void* p2 = p1;
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std::size_t s1 = -1;
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std::size_t s2 = s1;
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VERIFY(std::align(2, static_cast<std::size_t>(-1), p1, s1) == nullptr);
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VERIFY(p1 == p2);
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VERIFY(s1 == s2);
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}
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int main()
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{
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test01();
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test02();
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}
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