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Limit.h

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00001 //------------------------------------------------------------------------------
00002 // Lamp : Open source game middleware
00003 // Copyright (C) 2004  Junpei Ohtani ( Email : junpee@users.sourceforge.jp )
00004 //
00005 // This library is free software; you can redistribute it and/or
00006 // modify it under the terms of the GNU Lesser General Public
00007 // License as published by the Free Software Foundation; either
00008 // version 2.1 of the License, or (at your option) any later version.
00009 //
00010 // This library 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 GNU
00013 // Lesser General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU Lesser General Public
00016 // License along with this library; if not, write to the Free Software
00017 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00018 //------------------------------------------------------------------------------
00019 
00020 /** @file
00021  * 限界値ヘッダ
00022  * @author Junpee
00023  */
00024 
00025 #ifndef LIMIT_H_
00026 #define LIMIT_H_
00027 
00028 namespace Lamp{
00029 
00030 //------------------------------------------------------------------------------
00031 /**
00032  * 限界値
00033  */
00034 class Limit{
00035 public:
00036     /// char最小値
00037     static const char charMin = (-128);
00038     /// char最大値
00039     static const char charMax = (127);
00040     /// u_char最小値
00041     static const u_char uCharMin = (0);
00042     /// u_char最大値
00043     static const u_char uCharMax = (0xff);
00044 
00045     /// short最小値
00046     static const short shortMin = (-32768);
00047     /// short最大値
00048     static const short shortMax = (32767);
00049     /// u_short最小値
00050     static const u_short uShortMin = (0);
00051     /// u_short最大値
00052     static const u_short uShortMax = (0xffff);
00053 
00054     /// int最小値
00055     static const int intMin = (-2147483647 - 1);
00056     /// int最大値
00057     static const int intMax = (2147483647);
00058     /// u_int最小値
00059     static const u_int uIntMin = (0);
00060     /// u_int最大値
00061     static const u_int uIntMax = (0xffffffff);
00062 
00063     /// float最小の正数
00064     static const float floatPositiveMin;
00065     /// float最大値
00066     static const float floatMax;
00067     /// float最大値平方根
00068     static const float floatMaxSqrt;
00069 
00070     /// double最小値
00071     static const double doubleMin;
00072     /// double最大値
00073     static const double doubleMax;
00074 
00075     //--------------------------------------------------------------------------
00076     /**
00077      * charの範囲内か
00078      * @param value チェックする値
00079      */
00080     static bool inCharRange(int value){
00081         return ((value >= charMin) && (value <= charMax));
00082     }
00083 
00084     /**
00085      * u_charの範囲内か
00086      * @param value チェックする値
00087      */
00088     static bool inUCharRange(int value){
00089         return ((value >= uCharMin) && (value <= uCharMax));
00090     }
00091 
00092     //--------------------------------------------------------------------------
00093     /**
00094      * shortの範囲内か
00095      * @param value チェックする値
00096      */
00097     static bool inShortRange(int value){
00098         return ((value >= shortMin) && (value <= shortMax));
00099     }
00100 
00101     /**
00102      * u_shortの範囲内か
00103      * @param value チェックする値
00104      */
00105     static bool inUShortRange(int value){
00106         return ((value >= uShortMin) && (value <= uShortMax));
00107     }
00108 
00109 private:
00110     //--------------------------------------------------------------------------
00111     // コンストラクタの隠蔽
00112     Limit();
00113 
00114 };
00115 
00116 //------------------------------------------------------------------------------
00117 } // End of namespace Lamp
00118 #endif // End of _H_
00119 //------------------------------------------------------------------------------

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