~drizzle-trunk/drizzle/development : contents of plugin/math

~drizzle-trunk/drizzle/development : (revision 2242)

/* -*- 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
 */

#pragma once

#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 */


492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	1	/* -- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; --
	2	* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
	3	*
1999.6.1 by kalebral at gmail update Copyright strings to a more common format to help with creating the master debian copyright file	4	* Copyright (C) 2008 Sun Microsystems, Inc.
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; version 2 of the License.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18	*/
	19
2234 by Brian Aker Mass removal of ifdef/endif in favor of pragma once.	20	#pragma once
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	21
670.1.20 by Monty Taylor Renamed functions to function... everything else is singular.	22	#include <drizzled/function/func.h>
642.1.30 by Lee move math functions to drizzled/function/math directory	23	#include <drizzled/function/math/dec.h>
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	24
1280.1.10 by Monty Taylor Put everything in drizzled into drizzled namespace.	25	namespace drizzled
	26	{
	27
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	28	class Item_func_log :public Item_dec_func
	29	{
	30	public:
1759.3.6 by Stewart Smith move LOG(), LOG2() and LOG10() functions into math_functions plugin	31	Item_func_log() :Item_dec_func() {}
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	32	double val_real();
	33	const char *func_name() const { return "log"; }
1759.3.6 by Stewart Smith move LOG(), LOG2() and LOG10() functions into math_functions plugin	34	bool check_argument_count(int n) { return n == 1 \|\| n == 2; }
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	35	};
	36
	37	class Item_func_log2 :public Item_dec_func
	38	{
	39	public:
1759.3.6 by Stewart Smith move LOG(), LOG2() and LOG10() functions into math_functions plugin	40	Item_func_log2() :Item_dec_func() {}
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	41	double val_real();
	42	const char *func_name() const { return "log2"; }
1759.3.6 by Stewart Smith move LOG(), LOG2() and LOG10() functions into math_functions plugin	43	bool check_argument_count(int n) { return n == 1; }
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	44	};
	45
	46
	47	class Item_func_log10 :public Item_dec_func
	48	{
	49	public:
1759.3.6 by Stewart Smith move LOG(), LOG2() and LOG10() functions into math_functions plugin	50	Item_func_log10() :Item_dec_func() {}
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	51	double val_real();
	52	const char *func_name() const { return "log10"; }
1759.3.6 by Stewart Smith move LOG(), LOG2() and LOG10() functions into math_functions plugin	53	bool check_argument_count(int n) { return n == 1; }
492.3.9 by Lee code clean move Item_func_abs, Item_func_int_exp, Item_func_ln, Item_func_log to functions directory	54	};
	55
1280.1.10 by Monty Taylor Put everything in drizzled into drizzled namespace.	56	} /* namespace drizzled */
	57