llvm-gcc-4.2/libstdc++-v3/testsuite/util/regression/rand/assoc/detail/get_set_loads_fn_imps.hpp

// -*- C++ -*-

// Copyright (C) 2005, 2006 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 2, 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 COPYING.  If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
// MA 02111-1307, USA.

// As a special exception, you may use this file as part of a free
// software library without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
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// Public License.

// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.

// Permission to use, copy, modify, sell, and distribute this software
// is hereby granted without fee, provided that the above copyright
// notice appears in all copies, and that both that copyright notice
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/**
 * @file get_set_loads_fn_imps.hpp
 * Containsert a random regression test for a specific container type.
 */

PB_DS_CLASS_T_DEC
bool
PB_DS_CLASS_C_DEC::
get_set_loads()
{
  typedef
    pb_ds::detail::integral_constant<int,
    test_traits::get_set_loads>
    get_set_loads_ind;

  return (get_set_loads_imp(get_set_loads_ind()));
}

PB_DS_CLASS_T_DEC
bool
PB_DS_CLASS_C_DEC::
get_set_loads_imp(pb_ds::detail::false_type)
{
  return (true);
}

PB_DS_CLASS_T_DEC
bool
PB_DS_CLASS_C_DEC::
get_set_loads_imp(pb_ds::detail::true_type)
{
  PB_DS_TRACE("get_set_loads");

  bool done = true;

  PB_DS_SET_DESTRUCT_PRINT

    const std::pair<float, float> old_loads =
    m_p_c->get_loads();

  try
    {
      m_alloc.set_throw_prob(m_tp);

      typename alloc_t::group_throw_prob_adjustor adjust(
							 m_p_c->size());

      const float min_min_load = static_cast<float>(0.05);
      const float max_min_load = static_cast<float>(0.2);

      const float new_min_load =
	static_cast<float>(
			   m_g.get_prob()*  (max_min_load - min_min_load) +
			   min_min_load);

      const float new_max_load = static_cast<float>(new_min_load*  2.5);

      PB_DS_THROW_IF_FAILED(            new_max_load < 1, new_max_load, m_p_c, & m_native_c);

      m_p_c->set_loads(
		       std::make_pair(                new_min_load,  new_max_load));
    }
  catch(...)
    {
      PB_DS_THROW_IF_FAILED(
			    old_loads == m_p_c->get_loads(),
			    old_loads.first << " " << old_loads.second << " " <<
			    m_p_c->get_loads().first << " " <<
			    m_p_c->get_loads().second,
			    m_p_c,
			    & m_native_c);

      done = false;
    }

  PB_DS_COND_COMPARE(*m_p_c, m_native_c);

  PB_DS_CANCEL_DESTRUCT_PRINT

    return (done);
}