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// { dg-do run { target c++11 } }
// 2014-04-16 Rüdiger Sonderfeld <ruediger@c-plusplus.de>
// Copyright (C) 2014-2017 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/>.
// C++11 [ptr.align] (20.6.5): std::align
// { dg-require-cstdint "" }
#include <memory>
#include <cstdint>
#include <testsuite_hooks.h>
void
test01()
{
size_t space = 100;
void* ptr = new char[space];
char* const orig_ptr = static_cast<char*>(ptr);
char* old_ptr = orig_ptr;
const size_t orig_space = space;
size_t old_space = space;
const size_t alignment = 16;
const size_t size = 10;
while( void* const r = std::align(alignment, size, ptr, space) )
{
VERIFY( r == ptr );
uintptr_t p = reinterpret_cast<uintptr_t>(ptr);
VERIFY( p % alignment == 0 );
char* const x = static_cast<char*>(ptr);
VERIFY( x - old_ptr == old_space - space );
VERIFY( (void*)x < (void*)(orig_ptr + orig_space) );
VERIFY( (void*)(x + size) < (void*)(orig_ptr + orig_space) );
ptr = x + size;
old_ptr = x;
old_space = space;
space -= size;
}
delete [] orig_ptr;
}
int main()
{
test01();
}
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