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| #include "StdAfx.h"
#include "Dec.h"
#include <stdlib.h> //rand, srand
#include <time.h>
#include <math.h>
int randomz(int range_min, int range_max)
{
return /*range_min + rand() % range_max;*/(double)rand() / (RAND_MAX + 1) * (range_max+1-range_min) + range_min;
}
Dec::Dec()
{
n = 100;
arr = new unsigned char [n];
srand (time(NULL));
for (unsigned i = 0; i < n; i++)
arr[i] = randomz(1,9);
}
Dec::Dec(unsigned int nn)
{
n = nn;
arr = new unsigned char [n];
for (unsigned i = 0; i < n; i++)
arr[i] = randomz(1,9);
}
void Dec::set_arr_member(unsigned int i, unsigned char val)
{
if (i < n)
arr[i] = val;
}
unsigned char Dec::operator [] (const unsigned int ind)
{
if (ind < n)
return arr[ind];
else
return 0;
}
Dec& operator + (Dec& dec)
{
unsigned int a = dec->get_size();
unsigned int b = get_size();
int ch,ch1,ch2,q,v;
q=1;
for (int i=0;i<a;i++)
{
ch1=ch1+dec[i]*q;
q=q*10;
}
q=1;
for (int i=0;i<b;i++)
{
ch2=ch2+this[i]*q;
q=q*10;
}
ch=ch1+ch2;
ch1=ch;
while (ch>10)
{ v++;
if(ch%10==0)
v++;
ch=ch/10;
}
v++;
q=0;
Dec *btstr = gcnew Dec(v);
for (int i=0;i<v;i++)
{
q=ch1%10;
ch1=(ch1-q)/10;
btstr->set_arr_member(i, (q));
}
btstr->set_arr_member(v, (ch1));
return *btstr;
}
Dec& operator - (Dec& dec)
{
unsigned int a = dec->get_size();
unsigned int b = get_size();
int ch,ch1,ch2,q,v;
q=1;
for (int i=0;i<a;i++)
{
ch1=ch1+dec[i]*q;
q=q*10;
}
q=1;
for (int i=0;i<b;i++)
{
ch2=ch2+this[i]*q;
q=q*10;
}
if (ch1>=ch2)
ch=ch1-ch2;
else ch=ch2-ch1;
ch1=ch;
while (ch>10)
{ v++;
if(ch%10==0)
v++;
ch=ch/10;
}
q=0;
v++;
Dec *btstr = gcnew Dec(v);
for (int i=0;i<v;i++)
{
q=ch1%10;
ch1=(ch1-q)/10;
btstr->set_arr_member(i, (q));
}
btstr->set_arr_member(v, (ch1));
return *btstr;
}
Dec& operator * (Dec& dec)
{
unsigned int a = dec->get_size();
unsigned int b = get_size();
int ch,ch1,ch2,q,v;
q=1;
for (int i=0;i<a;i++)
{
ch1=ch1+dec[i]*q;
q=q*10;
}
q=1;
for (int i=0;i<b;i++)
{
ch2=ch2+this[i]*q;
q=q*10;
}
ch=ch1*ch2;
ch1=ch;
while (ch>10)
{ v++;
if(ch%10==0)
v++;
ch=ch/10;
}
q=0;
v++;
Dec *btstr = gcnew Dec(v);
for (int i=0;i<v;i++)
{
q=ch1%10;
ch1=(ch1-q)/10;
btstr->set_arr_member(i, (q));
}
btstr->set_arr_member(v, (ch1));
return *btstr;
}
Dec& operator dev (Dec& dec)
{
unsigned int a = dec->get_size();
unsigned int b = get_size();
int ch;
int ch1,ch2,q,v;
q=1;
for (int i=0;i<a;i++)
{
ch1=ch1+dec[i]*q;
q=q*10;
}
q=1;
for (int i=0;i<b;i++)
{
ch2=ch2+this[i]*q;
q=q*10;
}
if (ch1>ch2)
ch=ch1/ch2;
else ch=ch2/ch1;
ch1=ch;
while (ch>10)
{
v++;
if(ch%10==0)
v++;
ch=ch/10;
}
q=0;
v++;
Dec *btstr = gcnew Dec(v);
for (int i=0;i<v;i++)
{
q=ch1%10;
ch1=(ch1-q)/10;
btstr->set_arr_member(i, (q));
}
btstr->set_arr_member(v, (ch1));
return *btstr;
}
unsigned int Dec::get_size()
{
return n;
}
Dec& operator = (Dec& dec)
{
if (dec != this)
{
delete [] arr;
n = dec->get_size();
arr = new unsigned char [n];
for (unsigned i; i < n; i++)
{
arr[i] = dec[i];
}
}
return *this;
} |
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