Standard Portable Library: spl/Numeric.h Source File

00001 /*
00002  *   This file is part of the Standard Portable Library (SPL).
00003  *
00004  *   SPL is free software: you can redistribute it and/or modify
00005  *   it under the terms of the GNU General Public License as published by
00006  *   the Free Software Foundation, either version 3 of the License, or
00007  *   (at your option) any later version.
00008  *
00009  *   SPL is distributed in the hope that it will be useful,
00010  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *   GNU General Public License for more details.
00013  *
00014  *   You should have received a copy of the GNU General Public License
00015  *   along with SPL.  If not, see <http://www.gnu.org/licenses/>.
00016  */
00017 #ifndef _numeric_h
00018 #define _numeric_h
00019 
00020 #include <spl/types.h>
00021 #include <spl/Debug.h>
00022 #include <spl/Memory.h>
00023 #include <spl/String.h>
00024 
00034 class Numeric : public IComparable, public IMemoryValidate
00035 {
00036 protected:
00037         Numeric();
00038 
00039 public:
00040         virtual ~Numeric();
00041 
00042         virtual int32 HashCode() const = 0;
00043 
00044         virtual bool Equals(const IComparable *a) const = 0;
00045         virtual int Compare(const IComparable *a) const = 0;
00046         virtual bool Equals( const IComparable& a ) const = 0;
00047         virtual int Compare( const IComparable& a ) const = 0;
00048         virtual int32 MajicNumber() const = 0;
00049 
00050         virtual int ToInt() const = 0;
00051         virtual double ToDouble() const = 0;
00052         virtual StringPtr ToString() const = 0;
00053 
00054 #ifdef DEBUG
00055         virtual void ValidateMem() const = 0;
00056         virtual void CheckMem() const = 0;
00057 #endif
00058 
00059         static bool IsNumeric(const char *cp, const int cplen);
00060         inline static bool IsNumeric(const String& str) { return IsNumeric(str.GetChars(), str.Length()); }
00061         inline static bool IsNumeric(const String *str) { return IsNumeric(str->GetChars(), str->Length()); }
00062 };
00063 
00066 #endif