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 
00027 void Item_cache_decimal::store(Item *item)
00028 {
00029   type::Decimal *val= item->val_decimal_result(&decimal_value);
00030   if (!(null_value= item->null_value) && val != &decimal_value)
00031     class_decimal2decimal(val, &decimal_value);
00032 }
00033 
00034 double Item_cache_decimal::val_real()
00035 {
00036   assert(fixed);
00037   double res;
00038   class_decimal2double(E_DEC_FATAL_ERROR, &decimal_value, &res);
00039   return res;
00040 }
00041 
00042 int64_t Item_cache_decimal::val_int()
00043 {
00044   assert(fixed);
00045   int64_t res;
00046   decimal_value.val_int32(E_DEC_FATAL_ERROR, unsigned_flag, &res);
00047   return res;
00048 }
00049 
00050 String* Item_cache_decimal::val_str(String *str)
00051 {
00052   assert(fixed);
00053   class_decimal_round(E_DEC_FATAL_ERROR, &decimal_value, decimals, false,
00054                    &decimal_value);
00055   class_decimal2string(&decimal_value, 0, str);
00056   return str;
00057 }
00058 
00059 type::Decimal *Item_cache_decimal::val_decimal(type::Decimal *)
00060 {
00061   assert(fixed);
00062   return &decimal_value;
00063 }
00064 
00065 
00066 } /* namespace drizzled */