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bigint.h
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bigint.h
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#ifndef _BIGINT_H
#define _BIGINT_H
#if defined(_MSC_VER)
# pragma once
#endif
#include<iostream>
#include<algorithm>
#include<deque>
#include<string>
#include<stdlib.h>
#include<math.h>
class bigint
{
friend bool operator==(const bigint &, const std::deque<int> &);
friend bool operator==(const bigint &, int);
friend bool operator==(const bigint &, const std::string &);
friend bool operator==(const bigint &, const bigint &);
friend bool operator<(const bigint &, int);
friend bool operator<(const bigint &, const std::string &);
friend bool operator<(const bigint &, const bigint &);
friend std::ostream & operator<<(std::ostream &, const bigint &);
public:
bigint();
bigint(int);
bigint(const std::string &);
bigint(const bigint &);
~bigint();
bigint & operator=(const std::deque<int> &);
bigint & operator=(int);
bigint & operator=(const std::string &);
bigint & operator=(const bigint &);
bigint & operator+(const std::deque<int> &);
bigint & operator+(int);
bigint & operator+(const std::string &);
bigint & operator+(const bigint &);
bigint & operator+=(const std::deque<int> &);
bigint & operator+=(int);
bigint & operator+=(const std::string &);
bigint & operator+=(const bigint &);
bigint & operator++();
bigint & operator++(int);
bigint & operator-(const std::deque<int> &);
bigint & operator-(int);
bigint & operator-(const std::string &);
bigint & operator-(const bigint &);
bigint & operator-=(const std::deque<int> &);
bigint & operator-=(int);
bigint & operator-=(const std::string &);
bigint & operator-=(const bigint &);
bigint & operator--();
bigint & operator--(int);
bigint & operator*(const std::deque<int> &);
bigint & operator*(int);
bigint & operator*(const std::string &);
bigint & operator*(const bigint &);
bigint & operator*=(const std::deque<int> &);
bigint & operator*=(int);
bigint & operator*=(const std::string &);
bigint & operator*=(const bigint &);
bigint & operator/(const std::deque<int> &);
bigint & operator/(int);
bigint & operator/(const std::string &);
bigint & operator/(const bigint &);
bigint & operator/=(const std::deque<int> &);
bigint & operator/=(int);
bigint & operator/=(const std::string &);
bigint & operator/=(const bigint &);
inline int operator[](int)const;
inline std::size_t size()const;
private:
std::deque<int> deq;
std::deque<int> to_deque(int)const;
std::deque<int> to_deque(const std::string &)const;
std::string dtos(const std::deque<int> &)const;// deque to string
void align(std::deque<int> &, std::deque<int> &);
std::deque<int> karatsuba_mul(const std::deque<int> &, const std::deque<int> &);
};
bool operator==(const bigint &, const std::deque<int> &);
bool operator==(const bigint &, int);
bool operator==(const bigint &, const std::string &);
bool operator==(const bigint &, const bigint &);
bool operator!=(const bigint &, const std::deque<int> &);
bool operator!=(const bigint &, int);
bool operator!=(const bigint &, const std::string &);
bool operator!=(const bigint &, const bigint &);
bool operator<(const bigint &, const std::deque<int> &);
bool operator<(const bigint &, int);
bool operator<(const bigint &, const std::string &);
bool operator<(const bigint &, const bigint &);
bool operator<=(const bigint &, const std::deque<int> &);
bool operator<=(const bigint &, int);
bool operator<=(const bigint &, const std::string &);
bool operator<=(const bigint &, const bigint &);
bool operator>(const bigint &, const std::deque<int> &);
bool operator>(const bigint &, int);
bool operator>(const bigint &, const std::string &);
bool operator>(const bigint &, const bigint &);
bool operator>=(const bigint &, const std::deque<int> &);
bool operator>=(const bigint &, int);
bool operator>=(const bigint &, const std::string &);
bool operator>=(const bigint &, const bigint &);
std::istream & operator>>(std::istream &, bigint &);
std::ostream & operator<<(std::ostream &, const bigint &);
#endif // !_BIGINT_H