/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 *
 *  Copyright (C) 2008 Sun Microsystems, Inc.
 *
 *  This program 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; version 2 of the License.
 *
 *  This program 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 program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef PLUGIN_MATH_FUNCTIONS_LOG_H
#define PLUGIN_MATH_FUNCTIONS_LOG_H

#include <drizzled/function/func.h>
#include <drizzled/function/math/dec.h>

namespace drizzled
{

class Item_func_log :public Item_dec_func
{
public:
  Item_func_log() :Item_dec_func() {}
  double val_real();
  const char *func_name() const { return "log"; }
  bool check_argument_count(int n) { return n == 1 || n == 2; }
};

class Item_func_log2 :public Item_dec_func
{
public:
  Item_func_log2() :Item_dec_func() {}
  double val_real();
  const char *func_name() const { return "log2"; }
  bool check_argument_count(int n) { return n == 1; }
};


class Item_func_log10 :public Item_dec_func
{
public:
  Item_func_log10() :Item_dec_func() {}
  double val_real();
  const char *func_name() const { return "log10"; }
  bool check_argument_count(int n) { return n == 1; }
};

} /* namespace drizzled */

#endif /* PLUGIN_MATH_FUNCTIONS_LOG_H */