add.h

实现了任意长度整数的加减乘除以及成n次方运算

#include<stdio.h>
#include "SUBTRACT.h"





struct head *Add(struct head *oprnd1, struct head *oprnd2)
{
	struct head *result = new struct head;
	struct node *n1, *n2, *rslt;
	long int subs, undrflwdgt = 0;
	
	MakeNull(result);
	if(Sign(oprnd1) == Sign(oprnd2))
	{

		BasicAdd(oprnd1, oprnd2, result);
		Assign(result, Sign(oprnd1));
		
	}

	else
	{
		Assign(oprnd2,!Sign(oprnd2));
		result = Subtract(oprnd1, oprnd2);
		Assign(oprnd2,!Sign(oprnd2));
	}

    ClearZ(result);
	
	SetNoofDigits(result);	
	SetNoofNode(result);

	return result;
}