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.
114 lines
3.9 KiB
114 lines
3.9 KiB
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: $RCSfile: vtkLargeInteger.h,v $
|
|
|
|
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
|
|
All rights reserved.
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notice for more information.
|
|
|
|
=========================================================================*/
|
|
// .NAME vtkLargeInteger - class for arbitrarily large ints
|
|
|
|
#ifndef __vtkLargeInteger_h
|
|
#define __vtkLargeInteger_h
|
|
|
|
#include "vtkObject.h"
|
|
|
|
class VTK_COMMON_EXPORT vtkLargeInteger
|
|
{
|
|
public:
|
|
vtkLargeInteger(void);
|
|
vtkLargeInteger(long n);
|
|
vtkLargeInteger(unsigned long n);
|
|
vtkLargeInteger(int n);
|
|
vtkLargeInteger(unsigned int n);
|
|
vtkLargeInteger(const vtkLargeInteger& n);
|
|
#if defined(VTK_TYPE_USE_LONG_LONG)
|
|
vtkLargeInteger(long long n);
|
|
vtkLargeInteger(unsigned long long n);
|
|
#endif
|
|
#if defined(VTK_TYPE_USE___INT64)
|
|
vtkLargeInteger(__int64 n);
|
|
vtkLargeInteger(unsigned __int64 n);
|
|
#endif
|
|
|
|
~vtkLargeInteger(void);
|
|
|
|
char CastToChar(void) const;
|
|
short CastToShort(void) const;
|
|
int CastToInt(void) const;
|
|
long CastToLong(void) const;
|
|
unsigned long CastToUnsignedLong(void) const;
|
|
|
|
int IsEven(void) const;
|
|
int IsOdd(void) const;
|
|
int GetLength(void) const; // in bits
|
|
int GetBit(unsigned int p) const; // p'th bit (from zero)
|
|
int IsZero() const; // is zero
|
|
int GetSign(void) const; // is negative
|
|
|
|
void Truncate(unsigned int n); // reduce to lower n bits
|
|
void Complement(void); // * -1
|
|
|
|
int operator==(const vtkLargeInteger& n) const;
|
|
int operator!=(const vtkLargeInteger& n) const;
|
|
int operator<(const vtkLargeInteger& n) const;
|
|
int operator<=(const vtkLargeInteger& n) const;
|
|
int operator>(const vtkLargeInteger& n) const;
|
|
int operator>=(const vtkLargeInteger& n) const;
|
|
|
|
vtkLargeInteger& operator=(const vtkLargeInteger& n);
|
|
vtkLargeInteger& operator+=(const vtkLargeInteger& n);
|
|
vtkLargeInteger& operator-=(const vtkLargeInteger& n);
|
|
vtkLargeInteger& operator<<=(int n);
|
|
vtkLargeInteger& operator>>=(int n);
|
|
vtkLargeInteger& operator++(void);
|
|
vtkLargeInteger& operator--(void);
|
|
vtkLargeInteger operator++(int);
|
|
vtkLargeInteger operator--(int);
|
|
vtkLargeInteger& operator*=(const vtkLargeInteger& n);
|
|
vtkLargeInteger& operator/=(const vtkLargeInteger& n);
|
|
vtkLargeInteger& operator%=(const vtkLargeInteger& n);
|
|
// no change of sign for following operators
|
|
vtkLargeInteger& operator&=(const vtkLargeInteger& n);
|
|
vtkLargeInteger& operator|=(const vtkLargeInteger& n);
|
|
vtkLargeInteger& operator^=(const vtkLargeInteger& n);
|
|
|
|
vtkLargeInteger operator+(const vtkLargeInteger& n) const;
|
|
vtkLargeInteger operator-(const vtkLargeInteger& n) const;
|
|
vtkLargeInteger operator*(const vtkLargeInteger& n) const;
|
|
vtkLargeInteger operator/(const vtkLargeInteger& n) const;
|
|
vtkLargeInteger operator%(const vtkLargeInteger& n) const;
|
|
// no change of sign for following operators
|
|
vtkLargeInteger operator&(const vtkLargeInteger& n) const;
|
|
vtkLargeInteger operator|(const vtkLargeInteger& n) const;
|
|
vtkLargeInteger operator^(const vtkLargeInteger& n) const;
|
|
vtkLargeInteger operator<<(int n) const;
|
|
vtkLargeInteger operator>>(int n) const;
|
|
|
|
friend ostream& operator<<(ostream& s, const vtkLargeInteger& n);
|
|
friend istream& operator>>(istream& s, vtkLargeInteger& n);
|
|
|
|
private:
|
|
char* Number;
|
|
int Negative;
|
|
unsigned int Sig;
|
|
unsigned int Max;
|
|
|
|
// unsigned operators
|
|
int IsSmaller(const vtkLargeInteger& n) const; // unsigned
|
|
int IsGreater(const vtkLargeInteger& n) const; // unsigned
|
|
void Expand(unsigned int n); // ensure n'th bit exits
|
|
void Contract(); // remove leading 0s
|
|
void Plus(const vtkLargeInteger& n); // unsigned
|
|
void Minus(const vtkLargeInteger& n); // unsigned
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|