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// int128u - integer 8 bytes
// Copyright (C) 2007-2010 MediaArea.net SARL, Info@MediaArea.net
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//
// based on http://Tringi.Mx-3.cz
// Only adapted for ZenLib:
// - .hpp --> .h
// - Namespace
// - int128u alias
//
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
#ifndef UINT128_HPP
#define UINT128_HPP
/*
Name: uint128.hpp
Copyright: Copyright (C) 2005, Jan Ringos
Author: Jan Ringos, http://Tringi.Mx-3.cz
Version: 1.1
*/
#include <exception>
#include <cstdlib>
#include <cstdio>
#include <new>
#include "ZenLib/Conf.h"
// CLASS
namespace ZenLib
{
class uint128 {
public://private:
// Binary correct representation of signed 128bit integer
int64u lo;
int64u hi;
protected:
// Some global operator functions must be friends
friend bool operator < (const uint128 &, const uint128 &) throw ();
friend bool operator == (const uint128 &, const uint128 &) throw ();
friend bool operator || (const uint128 &, const uint128 &) throw ();
friend bool operator && (const uint128 &, const uint128 &) throw ();
public:
// Constructors
inline uint128 () throw () {};
inline uint128 (const uint128 & a) throw () : lo (a.lo), hi (a.hi) {};
inline uint128 (const int & a) throw () : lo (a), hi (0ull) {};
inline uint128 (const unsigned int & a) throw () : lo (a), hi (0ull) {};
inline uint128 (const int64u & a) throw () : lo (a), hi (0ull) {};
uint128 (const float a) throw ();
uint128 (const double & a) throw ();
uint128 (const long double & a) throw ();
uint128 (const char * sz) throw ();
// TODO: Consider creation of operator= to eliminate
// the need of intermediate objects during assignments.
private:
// Special internal constructors
uint128 (const int64u & a, const int64u & b) throw ()
: lo (a), hi (b) {};
public:
// Operators
bool operator ! () const throw ();
uint128 operator - () const throw ();
uint128 operator ~ () const throw ();
uint128 & operator ++ ();
uint128 & operator -- ();
uint128 operator ++ (int);
uint128 operator -- (int);
uint128 & operator += (const uint128 & b) throw ();
uint128 & operator *= (const uint128 & b) throw ();
uint128 & operator >>= (unsigned int n) throw ();
uint128 & operator <<= (unsigned int n) throw ();
uint128 & operator |= (const uint128 & b) throw ();
uint128 & operator &= (const uint128 & b) throw ();
uint128 & operator ^= (const uint128 & b) throw ();
// Inline simple operators
inline const uint128 & operator + () const throw () { return *this; };
// Rest of inline operators
inline uint128 & operator -= (const uint128 & b) throw () {
return *this += (-b);
};
inline uint128 & operator /= (const uint128 & b) throw () {
uint128 dummy;
*this = this->div (b, dummy);
return *this;
};
inline uint128 & operator %= (const uint128 & b) throw () {
this->div (b, *this);
return *this;
};
// Common methods
unsigned int toUint () const throw () {
return (unsigned int) this->lo; };
int64u toUint64 () const throw () {
return (int64u) this->lo; };
const char * toString (unsigned int radix = 10) const throw ();
float toFloat () const throw ();
double toDouble () const throw ();
long double toLongDouble () const throw ();
// Arithmetic methods
uint128 div (const uint128 &, uint128 &) const throw ();
// Bit operations
bool bit (unsigned int n) const throw ();
void bit (unsigned int n, bool val) throw ();
}
#ifdef __GNUC__
__attribute__ ((__aligned__ (16), __packed__))
#endif
;
// GLOBAL OPERATORS
bool operator < (const uint128 & a, const uint128 & b) throw ();
bool operator == (const uint128 & a, const uint128 & b) throw ();
bool operator || (const uint128 & a, const uint128 & b) throw ();
bool operator && (const uint128 & a, const uint128 & b) throw ();
// GLOBAL OPERATOR INLINES
inline uint128 operator + (const uint128 & a, const uint128 & b) throw () {
return uint128 (a) += b; };
inline uint128 operator - (const uint128 & a, const uint128 & b) throw () {
return uint128 (a) -= b; };
inline uint128 operator * (const uint128 & a, const uint128 & b) throw () {
return uint128 (a) *= b; };
inline uint128 operator / (const uint128 & a, const uint128 & b) throw () {
return uint128 (a) /= b; };
inline uint128 operator % (const uint128 & a, const uint128 & b) throw () {
return uint128 (a) %= b; };
inline uint128 operator >> (const uint128 & a, unsigned int n) throw () {
return uint128 (a) >>= n; };
inline uint128 operator << (const uint128 & a, unsigned int n) throw () {
return uint128 (a) <<= n; };
inline uint128 operator & (const uint128 & a, const uint128 & b) throw () {
return uint128 (a) &= b; };
inline uint128 operator | (const uint128 & a, const uint128 & b) throw () {
return uint128 (a) |= b; };
inline uint128 operator ^ (const uint128 & a, const uint128 & b) throw () {
return uint128 (a) ^= b; };
inline bool operator > (const uint128 & a, const uint128 & b) throw () {
return b < a; };
inline bool operator <= (const uint128 & a, const uint128 & b) throw () {
return !(b < a); };
inline bool operator >= (const uint128 & a, const uint128 & b) throw () {
return !(a < b); };
inline bool operator != (const uint128 & a, const uint128 & b) throw () {
return !(a == b); };
// MISC
typedef uint128 __uint128;
typedef uint128 int128u;
} //NameSpace
#endif
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