You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
126 lines
4.8 KiB
126 lines
4.8 KiB
/*==LICENSE==* |
|
|
|
CyanWorlds.com Engine - MMOG client, server and tools |
|
Copyright (C) 2011 Cyan Worlds, Inc. |
|
|
|
This program is free software: you can redistribute it and/or modify |
|
it under the terms of the GNU General Public License as published by |
|
the Free Software Foundation, either version 3 of the License, or |
|
(at your option) any later version. |
|
|
|
This program is distributed in the hope that it will be useful, |
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
GNU General Public License for more details. |
|
|
|
You should have received a copy of the GNU General Public License |
|
along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
|
|
Additional permissions under GNU GPL version 3 section 7 |
|
|
|
If you modify this Program, or any covered work, by linking or |
|
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
|
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
|
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
|
(or a modified version of those libraries), |
|
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
|
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
|
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
|
licensors of this Program grant you additional |
|
permission to convey the resulting work. Corresponding Source for a |
|
non-source form of such a combination shall include the source code for |
|
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
|
work. |
|
|
|
You can contact Cyan Worlds, Inc. by email legal@cyan.com |
|
or by snail mail at: |
|
Cyan Worlds, Inc. |
|
14617 N Newport Hwy |
|
Mead, WA 99021 |
|
|
|
*==LICENSE==*/ |
|
/***************************************************************************** |
|
* |
|
* $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/pnUtBigNum.h |
|
* |
|
***/ |
|
|
|
#ifdef PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNUTILS_PRIVATE_PNUTBIGNUM_H |
|
#error "Header $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/pnUtBigNum.h included more than once" |
|
#endif |
|
#define PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNUTILS_PRIVATE_PNUTBIGNUM_H |
|
|
|
|
|
/***************************************************************************** |
|
* |
|
* BigNum class |
|
* |
|
***/ |
|
|
|
class BigNum : private ARRAY(dword) { |
|
public: |
|
typedef dword Val; // must match base array |
|
typedef qword DVal; // must be twice as large as Val |
|
|
|
private: |
|
bool m_isTemp; |
|
|
|
void DivNormalized (const BigNum & a, const BigNum & b, BigNum * remainder); |
|
void ModNormalized (const BigNum & a, const BigNum & b); |
|
|
|
inline static DVal Mul (Val a, Val b); |
|
|
|
inline void SetVal (unsigned index, Val value); |
|
inline void SetVal (unsigned index, DVal value, Val * carry); |
|
inline void Trim (unsigned count); |
|
inline BigNum * UseTempAlloc (Val * ptr, unsigned count); |
|
|
|
public: |
|
BigNum (); |
|
BigNum (const BigNum & a); |
|
BigNum (unsigned a); |
|
BigNum (unsigned bytes, const void * data); |
|
BigNum (const wchar str[], Val radix); |
|
~BigNum (); |
|
|
|
// Constant parameters need not be distinct from the destination or from |
|
// each other |
|
|
|
void Add (const BigNum & a, Val b); |
|
void Add (const BigNum & a, const BigNum & b); |
|
int Compare (Val a) const; |
|
int Compare (const BigNum & a) const; |
|
void Div (const BigNum & a, Val b, Val * remainder); |
|
void Div (const BigNum & a, const BigNum & b, BigNum * remainder); |
|
void FromData (unsigned bytes, const void * data); |
|
void FromStr (const wchar str[], Val radix); |
|
void Gcd (const BigNum & a, const BigNum & b); |
|
const void * GetData (unsigned * bytes) const; |
|
unsigned HighBitPos () const; |
|
bool InverseMod (const BigNum & a, const BigNum & b); |
|
bool IsMultiple (Val a) const; |
|
bool IsOdd () const; |
|
bool IsPrime () const; |
|
unsigned LowBitPos () const; |
|
void Mod (const BigNum & a, const BigNum & b); |
|
void Mul (const BigNum & a, Val b); |
|
void Mul (const BigNum & a, const BigNum & b); |
|
void MulMod (const BigNum & a, const BigNum & b, const BigNum & c); |
|
void PowMod (Val a, const BigNum & b, const BigNum & c); |
|
void PowMod (const BigNum & a, const BigNum & b, const BigNum & c); |
|
void Rand (const BigNum & a, BigNum * seed); |
|
void Rand (unsigned bits, BigNum * seed); |
|
void RandPrime (unsigned bits, BigNum * seed); |
|
void Set (const BigNum & a); |
|
void Set (unsigned a); |
|
void SetBits (unsigned setBitsOffset, unsigned setBitsCount); |
|
void SetOne (); |
|
void SetZero (); |
|
void Shl (const BigNum & a, unsigned b); |
|
void Shr (const BigNum & a, unsigned b); |
|
void Square (const BigNum & a); |
|
void Sub (const BigNum & a, Val b); |
|
void Sub (const BigNum & a, const BigNum & b); |
|
void ToStr (BigNum * buffer, Val radix) const; |
|
|
|
};
|
|
|