大整数除法

public:
Cbigint(char *p=NULL);
Cbigint(const Cbigint &c);
Cbigint::Cbigint(long n);
void sinmult(int offset,char str1,const char *str2,int n,char *dest);//一位乘法，供多位乘法调用
#include<iostream>
#include<string>
using namespace std;
const int maxsize=1000;
class Cbigint
...{
private:
char m_int[maxsize];
int length;
m_int[1]=n;
if(n>=0)
m_int[0]='+';
else
m_int[0]='-';
}
void Cbigint::init(char *p)
...{
length=strlen(p);
int i=1;
flag='+';
else
flag='-';
if(div1<div2)
{
result.m_int[0]='+';
result.m_int[1]=0;
result.length=1;
return result;
}
result.m_int[0]=flag;
if(div1==div2)
{
result.m_int[0]=flag;
result.m_int[1]=1;
result.length=1;
return result;
}
int len1=div1.length,len2=div2.length,len3,temp=0;
div2.length=len2;
len1=div1.length;
}
return result;
}
Cbigint Cbigint::operator /(long n)
{
return (*this)/Cbigint(n);
}
Cbigint Cbigint::operator =(const Cbigint n)
length=strlen(p);
int i=0;
if(p[0]!='-')
...{
for(i=1;i<=length;i++)
m_int[i]=p[i-1]-48;
m_int[0]='+';
Cbigint operator+(const Cbigint &n);
Cbigint operator+(long n);
Cbigint operator*(long n);
Cbigint operator*(const Cbigint &n);
Cbigint operator/(long n);
{
for(int j=0;j<length;j++)
str[j]=m_int[j+1]+48;
}
else
{
for(int j=1;j<=length;j++)
str[j]=m_int[j]+48;
str[0]='-';
}
return str;
for(i=maxsize-1;i>=0;i--)
if(dest[i]!=0)
break;
temp.length=i+1;
for(j=0;j<=i;j++)
temp.m_int[j+1]=dest[i-j];
if(m_int[0]!=n.m_int[0])
temp.m_int[0]='-';
...{
j++;
m=m/10;
}
length=j+1;
while((n/10)!=0)
...{
m_int[j+1]=n%10;
j--;
n=n/10;
}
}
void Cbigint::sinmult(int offset,char str1,const char *str2,int n,char *dest)//一位的整数str1(0-9)与str2相乘把结果把到dest的offset位上
{
int inc=0,i,x;
i=n-1;
while(i>=0)
int i=1;
for(i=1;i<=len2;i++)
{
if(div1.m_int[i]>div2.m_int[i])
{
result.length=len1-len2+1;
break;
}
if(div1.m_int[i]<div2.m_int[i])
inc=x/10;
offset++;
}
}
void Cbigint::mult(const char *str1,const char *str2,int n1,int n2,char *dest)
{
int i=n1-1;
while(i>=0)
{
sinmult(n1-i-1,str1[i],str2,n2,dest);
...{
if(p==NULL)
...{
for(int i=1;i<maxsize-1;i++)
m_int[i]=0;
m_int[0]='+';
length=1;
}
else
...{
{
result.length=len1-len2;
break;
}
}
if(i>len2)
result.length=len1-len2+1;
len3=result.length;
while(div1>div2||div1==div2)
{
for(i=1;i<=len2;i++)
void sum(const char *str1,int n1,const char *str2,int n2,char *dest);//加法实现主程序
Cbigint abs()const;//返回绝对值
friend ostream&operator<<(ostream &dirt,Cbigint &iv);//输出
friend istream&operator>>(istream &dirt,Cbigint &iv);//输入
Cbigint Cbigint::operator =(Cbigint n);//重载等号
bool operator>(const Cbigint &n);
{
if(div1.m_int[i]>div2.m_int[i])
{
temp=len1-len2+1;
break;
}
if(div1.m_int[i]<div2.m_int[i])
{
temp=len1-len2;
break;
bool operator<(const Cbigint &n);
bool operator==(const Cbigint &n);
Cbigint operator-(const Cbigint &n);
Cbigint operator-(long n);
Cbigint operator-()const;//重载负号
if(p[0]!='-')
...{
for(i=1;i<=length;i++)
m_int[i]=p[i-1]-48;
m_int[0]='+';
}
else
...{
for(i=1;i<=length;i++)
Cbigint operator/(const Cbigint &n);
string toString();//转化为字条串
void init(char *p);//用字串初始化
};
//bigint.cpp
#include "bigint.h"
Cbigint::Cbigint(char *p)
{
x=str2[i]*str1+inc+dest[offset];
dest[offset]=x%10;
inc=x/10;
i--;
offset++;
}
while(inc)
{
x=dest[offset]+inc;
dest[offset]=x%10;