~drizzle-trunk/drizzle/development : contents of drizzled/function/numhybrid.cc at revision 1994.5.31

~drizzle-trunk/drizzle/development : (revision 1994.5.31)

/* -*- 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
 */

#include "config.h"
#include <math.h>
#include <drizzled/function/numhybrid.h>

namespace drizzled
{

void Item_func_numhybrid::fix_num_length_and_dec()
{}

void Item_func_numhybrid::fix_length_and_dec()
{
  fix_num_length_and_dec();
  find_num_type();
}

String *Item_func_numhybrid::val_str(String *str)
{
  assert(fixed == 1);
  switch (hybrid_type) {
  case DECIMAL_RESULT:
    {
      type::Decimal decimal_value, *val;
      if (!(val= decimal_op(&decimal_value)))
        return 0;                                 // null is set
      class_decimal_round(E_DEC_FATAL_ERROR, val, decimals, false, val);
      class_decimal2string(E_DEC_FATAL_ERROR, val, 0, 0, 0, str);
      break;
    }
  case INT_RESULT:
    {
      int64_t nr= int_op();
      if (null_value)
        return 0;
      str->set_int(nr, unsigned_flag, &my_charset_bin);
      break;
    }
  case REAL_RESULT:
    {
      double nr= real_op();
      if (null_value)
        return 0;
      str->set_real(nr,decimals,&my_charset_bin);
      break;
    }
  case STRING_RESULT:
    return str_op(&str_value);
  case ROW_RESULT:
    assert(0);
  }
  return str;
}


double Item_func_numhybrid::val_real()
{
  assert(fixed == 1);
  switch (hybrid_type) {
  case DECIMAL_RESULT:
    {
      type::Decimal decimal_value, *val;
      double result;
      if (!(val= decimal_op(&decimal_value)))
        return 0.0;                               // null is set
      class_decimal2double(E_DEC_FATAL_ERROR, val, &result);
      return result;
    }
  case INT_RESULT:
    {
      int64_t result= int_op();
      return unsigned_flag ? (double) ((uint64_t) result) : (double) result;
    }
  case REAL_RESULT:
    return real_op();
  case STRING_RESULT:
    {
      char *end_not_used;
      int err_not_used;
      String *res= str_op(&str_value);
      return (res ? my_strntod(res->charset(), (char*) res->ptr(), res->length(),
                               &end_not_used, &err_not_used) : 0.0);
    }
  case ROW_RESULT:
    assert(0);
  }

  return 0.0;
}


int64_t Item_func_numhybrid::val_int()
{
  assert(fixed == 1);
  switch (hybrid_type) {
  case DECIMAL_RESULT:
    {
      type::Decimal decimal_value, *val;
      if (!(val= decimal_op(&decimal_value)))
        return 0;                                 // null is set
      int64_t result;
      val->val_int32(E_DEC_FATAL_ERROR, unsigned_flag, &result);
      return result;
    }
  case INT_RESULT:
    return int_op();
  case REAL_RESULT:
    return (int64_t) rint(real_op());
  case STRING_RESULT:
    {
      int err_not_used;
      String *res;
      if (!(res= str_op(&str_value)))
        return 0;

      char *end= (char*) res->ptr() + res->length();
      const CHARSET_INFO * const cs= str_value.charset();
      return (*(cs->cset->strtoll10))(cs, res->ptr(), &end, &err_not_used);
    }
  case ROW_RESULT:
    assert(0);
  }
  return 0;
}


type::Decimal *Item_func_numhybrid::val_decimal(type::Decimal *decimal_value)
{
  type::Decimal *val= decimal_value;
  assert(fixed == 1);

  switch (hybrid_type) {
  case DECIMAL_RESULT:
    val= decimal_op(decimal_value);
    break;
  case INT_RESULT:
    {
      int64_t result= int_op();
      int2_class_decimal(E_DEC_FATAL_ERROR, result, unsigned_flag, decimal_value);
      break;
    }
  case REAL_RESULT:
    {
      double result= (double)real_op();
      double2_class_decimal(E_DEC_FATAL_ERROR, result, decimal_value);
      break;
    }
  case STRING_RESULT:
    {
      String *res;
      if (!(res= str_op(&str_value)))
        return NULL;

      decimal_value->store(E_DEC_FATAL_ERROR, (char*) res->ptr(),
                           res->length(), res->charset());
      break;
    }
  case ROW_RESULT:
    assert(0);
  }

  return val;
}

} /* namespace drizzled */

492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	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.
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	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
1241.9.36 by Monty Taylor ZOMG. I deleted drizzled/server_includes.h.	20	#include "config.h"
1241.9.1 by Monty Taylor Removed global.h. Fixed all the headers.	21	#include <math.h>
670.1.20 by Monty Taylor Renamed functions to function... everything else is singular.	22	#include <drizzled/function/numhybrid.h>
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	23
1280.1.10 by Monty Taylor Put everything in drizzled into drizzled namespace.	24	namespace drizzled
	25	{
	26
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	27	void Item_func_numhybrid::fix_num_length_and_dec()
	28	{}
	29
	30	void Item_func_numhybrid::fix_length_and_dec()
	31	{
	32	fix_num_length_and_dec();
	33	find_num_type();
	34	}
	35
	36	String Item_func_numhybrid::val_str(String str)
	37	{
	38	assert(fixed == 1);
	39	switch (hybrid_type) {
	40	case DECIMAL_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	41	{
2030.1.4 by Brian Aker Change my_decimal to Decimal	42	type::Decimal decimal_value, *val;
2008 by Brian Aker Formatting + remove default from switch/case.	43	if (!(val= decimal_op(&decimal_value)))
	44	return 0; // null is set
2030.1.2 by Brian Aker First pass in refactoring of the name of my_decimal.	45	class_decimal_round(E_DEC_FATAL_ERROR, val, decimals, false, val);
2030.1.3 by Brian Aker Second pass through function names.	46	class_decimal2string(E_DEC_FATAL_ERROR, val, 0, 0, 0, str);
2008 by Brian Aker Formatting + remove default from switch/case.	47	break;
	48	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	49	case INT_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	50	{
	51	int64_t nr= int_op();
	52	if (null_value)
	53	return 0;
	54	str->set_int(nr, unsigned_flag, &my_charset_bin);
	55	break;
	56	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	57	case REAL_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	58	{
	59	double nr= real_op();
	60	if (null_value)
	61	return 0;
	62	str->set_real(nr,decimals,&my_charset_bin);
	63	break;
	64	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	65	case STRING_RESULT:
	66	return str_op(&str_value);
2008 by Brian Aker Formatting + remove default from switch/case.	67	case ROW_RESULT:
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	68	assert(0);
	69	}
	70	return str;
	71	}
	72
	73
	74	double Item_func_numhybrid::val_real()
	75	{
	76	assert(fixed == 1);
	77	switch (hybrid_type) {
	78	case DECIMAL_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	79	{
2030.1.4 by Brian Aker Change my_decimal to Decimal	80	type::Decimal decimal_value, *val;
2008 by Brian Aker Formatting + remove default from switch/case.	81	double result;
	82	if (!(val= decimal_op(&decimal_value)))
	83	return 0.0; // null is set
2030.1.3 by Brian Aker Second pass through function names.	84	class_decimal2double(E_DEC_FATAL_ERROR, val, &result);
2008 by Brian Aker Formatting + remove default from switch/case.	85	return result;
	86	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	87	case INT_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	88	{
	89	int64_t result= int_op();
	90	return unsigned_flag ? (double) ((uint64_t) result) : (double) result;
	91	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	92	case REAL_RESULT:
	93	return real_op();
	94	case STRING_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	95	{
	96	char *end_not_used;
	97	int err_not_used;
	98	String *res= str_op(&str_value);
	99	return (res ? my_strntod(res->charset(), (char*) res->ptr(), res->length(),
	100	&end_not_used, &err_not_used) : 0.0);
	101	}
	102	case ROW_RESULT:
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	103	assert(0);
	104	}
2008 by Brian Aker Formatting + remove default from switch/case.	105
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	106	return 0.0;
	107	}
	108
	109
	110	int64_t Item_func_numhybrid::val_int()
	111	{
	112	assert(fixed == 1);
	113	switch (hybrid_type) {
	114	case DECIMAL_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	115	{
2030.1.4 by Brian Aker Change my_decimal to Decimal	116	type::Decimal decimal_value, *val;
2008 by Brian Aker Formatting + remove default from switch/case.	117	if (!(val= decimal_op(&decimal_value)))
	118	return 0; // null is set
	119	int64_t result;
2034.2.1 by Brian Aker Move class_decimal2int to a method on Decimal.	120	val->val_int32(E_DEC_FATAL_ERROR, unsigned_flag, &result);
2008 by Brian Aker Formatting + remove default from switch/case.	121	return result;
	122	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	123	case INT_RESULT:
	124	return int_op();
	125	case REAL_RESULT:
	126	return (int64_t) rint(real_op());
	127	case STRING_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	128	{
	129	int err_not_used;
	130	String *res;
	131	if (!(res= str_op(&str_value)))
	132	return 0;
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	133
2008 by Brian Aker Formatting + remove default from switch/case.	134	char end= (char) res->ptr() + res->length();
	135	const CHARSET_INFO * const cs= str_value.charset();
	136	return (*(cs->cset->strtoll10))(cs, res->ptr(), &end, &err_not_used);
	137	}
	138	case ROW_RESULT:
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	139	assert(0);
	140	}
	141	return 0;
	142	}
	143
	144
2030.1.4 by Brian Aker Change my_decimal to Decimal	145	type::Decimal Item_func_numhybrid::val_decimal(type::Decimal decimal_value)
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	146	{
2030.1.4 by Brian Aker Change my_decimal to Decimal	147	type::Decimal *val= decimal_value;
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	148	assert(fixed == 1);
2008 by Brian Aker Formatting + remove default from switch/case.	149
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	150	switch (hybrid_type) {
	151	case DECIMAL_RESULT:
	152	val= decimal_op(decimal_value);
	153	break;
	154	case INT_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	155	{
	156	int64_t result= int_op();
2030.1.3 by Brian Aker Second pass through function names.	157	int2_class_decimal(E_DEC_FATAL_ERROR, result, unsigned_flag, decimal_value);
2008 by Brian Aker Formatting + remove default from switch/case.	158	break;
	159	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	160	case REAL_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	161	{
	162	double result= (double)real_op();
2030.1.3 by Brian Aker Second pass through function names.	163	double2_class_decimal(E_DEC_FATAL_ERROR, result, decimal_value);
2008 by Brian Aker Formatting + remove default from switch/case.	164	break;
	165	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	166	case STRING_RESULT:
2008 by Brian Aker Formatting + remove default from switch/case.	167	{
	168	String *res;
	169	if (!(res= str_op(&str_value)))
	170	return NULL;
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	171
2034.2.5 by Brian Aker Improvement for decimal in encapsulation.	172	decimal_value->store(E_DEC_FATAL_ERROR, (char*) res->ptr(),
	173	res->length(), res->charset());
2008 by Brian Aker Formatting + remove default from switch/case.	174	break;
	175	}
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	176	case ROW_RESULT:
	177	assert(0);
	178	}
2008 by Brian Aker Formatting + remove default from switch/case.	179
492.3.2 by Lee code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid	180	return val;
	181	}
1280.1.10 by Monty Taylor Put everything in drizzled into drizzled namespace.	182
	183	} /* namespace drizzled */