#include?
#include?
#include?

/*
有符號的加減法可以轉化為無符號的加減法
小數(shù)可以用擴大10^n的整數(shù)表示
*/

/****************定義變量*********/

#define?THIS_MAXLEN?100??//數(shù)組長度?
#define?SHOW_MAXLEN?50??//自我調(diào)整中使用的最大長度?
#define?DIV_PREC???（THIS_MAXLEN-SHOW_MAXLEN）???//?除法精度相關，循環(huán)取商最大次數(shù)?，50?對應開方?17?的有效位

#define?RESULT_TYPE?signed?char
#define?RESULT_OK?0
#define?RESULT_ERR_MEM?1
#define?RESULT_ERR_DIVZERO?2
#define?RESULT_ERR_MINUS?3
#define?RESULT_ERR_OVERLEN?4


typedef?struct
{
????signed?char?len;//數(shù)據(jù)長度
????signed?char?*num;
}?bignumbase_st;

typedef?struct
{
??bignumbase_st?baseT;
??signed?char?symbol;//正負0正，1負
??signed?char?exponent;//指數(shù)，10^e次方?
}?bignumESB_st;


/**********************************聲明函數(shù)**********************/
/*******聲明全局函數(shù)********/
//有符號大數(shù)加法
RESULT_TYPE?bigNumADD（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）;
//有符號大數(shù)減法
RESULT_TYPE?bigNumSUB（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）;
//有符號大數(shù)乘法
RESULT_TYPE?bigNumMUL（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）;
//有符號大數(shù)除法
RESULT_TYPE?bigNumDIV（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）;
//根號2
RESULT_TYPE?bigNumSQR（bignumESB_st?*const?pdstconst?bignumESB_st?*psrcconst?signed?char?effec）;

/*********聲明內(nèi)部函數(shù)********/

//無符號大數(shù)加法
static?RESULT_TYPE?nsbigADD（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）;
//無符號大數(shù)減法
static?RESULT_TYPE?nsbigSUB（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）;
//無符號大數(shù)乘法
static?RESULT_TYPE?nsbigMUL（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）;
//無符號大數(shù)除法?
static?RESULT_TYPE?nsbigDIV（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）;
//根號2
static?RESULT_TYPE?nsbigNumSQR（bignumESB_st?*const?pdstconst?bignumESB_st?*psrcconst?signed?char?effec）;

//比較數(shù)組代表的無符號整數(shù)的大小，a>b=1a=b=0astatic?signed?char?arrcmp（const?bignumbase_st?*pa?const?bignumbase_st?*pb?）;
//移動數(shù)組?改變長度?
static?void?bigNumTenfold（bignumbase_st?*const?pdstconst?bignumbase_st?*psrcconst?signed?char?exponent）;
//去掉末尾的所有chart，返回去掉的數(shù)目?
static?signed?char?removeTailChart（signed?char?*pasigned?char?*plenconst?char?chart）;
//去除開頭的所有的字符chart返回去掉的數(shù)目?
static?signed?char?removeHeadChart（signed?char?*pasigned?char?*plenconst?char?chart）;
//調(diào)整結構體，不改變表示的值，使exponent盡量靠近0
static?void?bignumst_adjust（bignumESB_st?*const?pdstconst?unsigned?char?maxlen）?;
//設置結構體代數(shù)的有效位數(shù)
static?void?bignumst_valeffec（?bignumESB_st?*const?pdstconst?signed?char?effec）?;
/**************************************定義函數(shù)*******************************/

//有符號大數(shù)加法
RESULT_TYPE??bigNumADD（bignumESB_st?*const?pdstconst?bignumESB_st?*paconst?bignumESB_st?*pb）
{
????RESULT_TYPE?err;
????if（?pa->symbol?==?pb->symbol）
????{
??????????err=nsbigADD（?pdst?pa?pb）;
????????pdst->symbol?=?pa->symbol?;
????}else
????{
????????if?（?pa->symbol?==0?）?//?正?