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// Copyright (C) 2000 Stephen Cleary
//
// Distributed under the Boost Software License, Version 1.0. (See accompany-
// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org for updates, documentation, and revision history.

// This file was AUTOMATICALLY GENERATED from "stdin"
//  Do NOT include directly!
//  Do NOT edit!

template <typename T0>
element_type * construct(T0 & a0)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0>
element_type * construct(const T0 & a0)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0>
element_type * construct(volatile T0 & a0)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0>
element_type * construct(const volatile T0 & a0)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(T0 & a0, T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(const T0 & a0, T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(volatile T0 & a0, T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(const volatile T0 & a0, T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(T0 & a0, const T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(const T0 & a0, const T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(volatile T0 & a0, const T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(const volatile T0 & a0, const T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(T0 & a0, volatile T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(const T0 & a0, volatile T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(volatile T0 & a0, volatile T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(const volatile T0 & a0, volatile T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(T0 & a0, const volatile T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(const T0 & a0, const volatile T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(volatile T0 & a0, const volatile T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1>
element_type * construct(const volatile T0 & a0, const volatile T1 & a1)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, const T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, const T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, const T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, const T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, volatile T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, volatile T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, volatile T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, volatile T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, const volatile T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, const volatile T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, const volatile T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, const volatile T1 & a1, T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, const T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, const T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, const T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, const T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, volatile T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, volatile T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, volatile T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, volatile T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, const volatile T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, const volatile T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, const volatile T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, const volatile T1 & a1, const T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, const T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, const T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, const T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, const T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, volatile T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, volatile T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, volatile T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, volatile T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, const volatile T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, const volatile T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, const volatile T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, const volatile T1 & a1, volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, const T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, const T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, const T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, const T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, volatile T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, volatile T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, volatile T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, volatile T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(T0 & a0, const volatile T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const T0 & a0, const volatile T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(volatile T0 & a0, const volatile T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}
template <typename T0, typename T1, typename T2>
element_type * construct(const volatile T0 & a0, const volatile T1 & a1, const volatile T2 & a2)
{
  element_type * const ret = (malloc)();
  if (ret == 0)
    return ret;
  try { new (ret) element_type(a0, a1, a2); }
  catch (...) { (free)(ret); throw; }
  return ret;
}