// vim: set sts=8 ts=2 sw=2 tw=99 et:
//
// Copyright (C) 2013-2014, David Anderson and AlliedModders LLC
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 
//  * Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//  * Neither the name of AlliedModders LLC nor the names of its contributors
//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
#ifndef _include_amtl_bits_h_
#define _include_amtl_bits_h_

#include <am-algorithm.h>

namespace ke {

static inline bool
TryUint64Multiply(uint64_t left, uint64_t right, uint64_t *out)
{
  uint64_t r = left * right;
  if (r != 0 && ((r / left) != right))
    return false;

  *out = r;
  return true;
}

static inline bool
TryUint32Add(uint32_t left, uint32_t right, uint32_t *out)
{
  if (left + right < Max(left, right))
    return false;
  *out = left + right;
  return true;
}

static inline bool
TryUint64Add(uint64_t left, uint64_t right, uint64_t *out)
{
  if (left + right < Max(left, right))
    return false;
  *out = left + right;
  return true;
}

} // namespace ke

#endif // _include_amtl_bits_h_