00001 /* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*- 00002 * vim:expandtab:shiftwidth=2:tabstop=2:smarttab: 00003 * 00004 * Copyright (C) 2010 Brian Aker 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; either version 2 of the License, or 00009 * (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #pragma once 00022 00023 #include <drizzled/function/math/int.h> 00024 00025 namespace drizzled { 00026 namespace function { 00027 namespace cast { 00028 00029 class Signed : public Item_int_func 00030 { 00031 public: 00032 Signed(Item *a) : 00033 Item_int_func(a) 00034 {} 00035 00036 const char *func_name() const { return "cast_as_signed"; } 00037 00038 int64_t val_int(); 00039 00040 void fix_length_and_dec() 00041 { 00042 fix_char_length(args[0]->max_char_length()); 00043 unsigned_flag= false; 00044 } 00045 00046 void print(String *str); 00047 00048 uint32_t decimal_precision() const 00049 { 00050 return args[0]->decimal_precision(); 00051 } 00052 }; 00053 00054 } // namespace cast 00055 } // namespace function 00056 } // namespace drizzled 00057