Drizzled Public API Documentation

cache_decimal.cc
00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2008 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; version 2 of the License.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018  */
00019 
00020 #include <config.h>
00021 
00022 #include <drizzled/item/cache_decimal.h>
00023 
00024 namespace drizzled {
00025 
00026 void Item_cache_decimal::store(Item *item)
00027 {
00028   type::Decimal *val= item->val_decimal_result(&decimal_value);
00029   if (!(null_value= item->null_value) && val != &decimal_value)
00030     class_decimal2decimal(val, &decimal_value);
00031 }
00032 
00033 double Item_cache_decimal::val_real()
00034 {
00035   assert(fixed);
00036   double res;
00037   class_decimal2double(E_DEC_FATAL_ERROR, &decimal_value, &res);
00038   return res;
00039 }
00040 
00041 int64_t Item_cache_decimal::val_int()
00042 {
00043   assert(fixed);
00044   int64_t res;
00045   decimal_value.val_int32(E_DEC_FATAL_ERROR, unsigned_flag, &res);
00046   return res;
00047 }
00048 
00049 String* Item_cache_decimal::val_str(String *str)
00050 {
00051   assert(fixed);
00052   class_decimal_round(E_DEC_FATAL_ERROR, &decimal_value, decimals, false, &decimal_value);
00053   class_decimal2string(&decimal_value, 0, str);
00054   return str;
00055 }
00056 
00057 type::Decimal *Item_cache_decimal::val_decimal(type::Decimal *)
00058 {
00059   assert(fixed);
00060   return &decimal_value;
00061 }
00062 
00063 
00064 } /* namespace drizzled */