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/*
* Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
// Definitions of our util functions
#include <stdexcept>
void *must_malloc(size_t size);
// overflow management
#define OVERFLOW ((size_t) - 1)
#define PSIZE_MAX (OVERFLOW / 2) /* normal size limit */
inline size_t scale_size(size_t size, size_t scale)
{
return (size > PSIZE_MAX / scale) ? OVERFLOW : size * scale;
}
inline size_t add_size(size_t size1, size_t size2)
{
return ((size1 | size2 | (size1 + size2)) > PSIZE_MAX) ? OVERFLOW : size1 + size2;
}
inline size_t add_size(size_t size1, size_t size2, int size3)
{
return add_size(add_size(size1, size2), size3);
}
struct unpacker;
/// This throws an exception!
extern void unpack_abort(const char *msg = nullptr);
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