Program To Create a Self Rubric In C++ Assignment Solution
- Instructions
- Requirements and Specifications
Instructions
Requirements and Specifications
- Test 0 – 3: Constructors, long, const char*, const char* long
- Test 4-8: Binary Operators, +, -, *, /, %
- Test 9-10 : Unary Operator
- Test 11-12: Comparison and operator>>()
- Test 13-15: Assignment operator, index operator, conversion operator, destructor
Source Code
#include <cctype.h> //isdigit()
#include <cstring> //strlen
#include <HugeInt.h>
using std::endl;
using std::cout;
HugeInt::HugeInt(long value)
{
cout <<"HugeInt(long) called" << endl;
number = new char[30];
long temp = value;
for(int i = 0; i < 30; i++) {
number[i] = temp % 10;
temp /= 10;
}
//Complete the code here to set number[i]
computeSize();
}
//Set the size of the number of an HugeInt object
void HugeInt::computeSize()
{
size = 1;
for(int i = 29; i >=0; i--) {
if (number[i] != 0) {
size = i + 1;
break;
}
}
}
HugeInt::HugeInt(const char* string)
{
cout <<"HugeInt(const char*) called" << endl;
int len = strlen(string);
number = new char[30];
for (int i = 0; i<30; i++) {
if (i < len) {
number[i] = string[len - 1 - i] - '0';
}
else {
number[i] = 0;
}
}
computeSize();
}
HugeInt::HugeInt(const HugeInt& copy)
{
cout <<"HugeInt(const HugeInt&) called" << endl;
number = new char[30];
for (int i = 0; i<30; i++) {
number[i] = copy.number[i];
}
size = copy.size;
}
HugeInt::~HugeInt()
{
cout <<"~HugeInt() called" << endl;
delete[] number;
}
HugeInt& HugeInt::operator=(const HugeInt& right)
{
cout <<"operator=(const HugeInt&) called" << endl;
for (int i = 0; i<30; i++) {
number[i] = right.number[i];
}
size = right.size;
return *this;
}
HugeInt HugeInt::operator+(const HugeInt& right)
{
cout << "operator+(const HugeInt&)" << endl;
char string[31];
string[30] = 0;
char carry = 0;
for (int i = 0; i<30; i++) {
char sum = carry + number[i] + right.number[i];
string[30-i-1] = (sum % 10) + '0';
carry = sum / 10;
}
return HugeInt(string);
}
HugeInt HugeInt::operator-(const HugeInt& right)
{
cout << "operator-(const HugeInt&)" << endl;
char string[31];
string[30] = 0;
char carry = 0;
for (int i = 0; i<30; i++) {
char sum = number[i] - right.number[i] + carry;
if (sum < 0) {
carry = -1;
sum += 10;
}
else {
carry = 0;
}
string[30-i-1] = sum + '0';
}
return HugeInt(string);
}
HugeInt HugeInt::operator*(const HugeInt& right)
{
cout << "operator*(const HugeInt&)" << endl;
HugeInt result(0L);
for (int j = 0; j
char string[31];
string[30] = 0;
for (int i = 0; i
string[29-i] = '0';
}
char carry = 0;
for(int i = 0; i<30-j; i++) {
char sum = carry + number[i] * right.number[j];
string[29-i-j] = (sum % 10) + '0';
carry = sum / 10;
}
HugeInt add(string);
result = result + add;
}
return result;
}
HugeInt HugeInt::operator/(const HugeInt& right)
{
cout << "operator/(const HugeInt&)" << endl;
HugeInt copy = right;
if (!(copy <= (*this))) {
return HugeInt(0L);
}
HugeInt temp(*this);
HugeInt result(0L);
HugeInt ten(10L);
HugeInt one(1L);
int diffLen = size - right.size;
for (int i = diffLen; i>=0; i--) {
HugeInt coeff = one;
for (int j = 0; j
coeff = coeff * ten;
}
HugeInt sub(0L);
long currJ = 0;
for (long j = 1; j<10; j++) {
HugeInt J(j);
HugeInt next = J * (coeff * right);
if (!(next <= temp)) {
break;
}
sub = next;
currJ = j;
}
HugeInt JJ(currJ);
result = (result * ten) + JJ;
temp = temp - sub;
}
return result;
}
HugeInt HugeInt::operator%(const HugeInt& right)
{
HugeInt copy = right;
if (!(copy <= (*this))) {
return HugeInt(0L);
}
HugeInt temp(*this);
HugeInt result(0L);
HugeInt ten(10L);
HugeInt one(1L);
int diffLen = size - right.size;
for (int i = diffLen; i>=0; i--) {
HugeInt coeff = one;
for (int j = 0; j
coeff = coeff * ten;
}
HugeInt sub(0L);
long currJ = 0;
for (long j = 1; j<10; j++) {
HugeInt J(j);
HugeInt next = J * (coeff * right);
if (!(next <= temp)) {
break;
}
sub = next;
currJ = j;
}
HugeInt JJ(currJ);
result = (result * ten) + JJ;
temp = temp - sub;
}
return temp;
}
HugeInt& HugeInt::operator++()
{
cout << "operator++()" << endl;
char carry = 0;
for (int i = 0; i<30; i++) {
char sum = number[i] + carry + (i == 0 ? 1 : 0);
number[i] = sum % 10;
carry /= 10;
}
computeSize();
return *this;
}
HugeInt HugeInt::operator++(int)
{
cout << "operator++(int)" << endl;
HugeInt copy(*this);
char carry = 0;
for (int i = 0; i<30; i++) {
char sum = number[i] + carry + (i == 0 ? 1 : 0);
number[i] = sum % 10;
carry /= 10;
}
computeSize();
return copy;
}
short& HugeInt::operator[](int pos)
{
cout << "operator[](int)" << endl;
return (short&)(number[29 - pos]);
}
HugeInt::operator long double()
{
cout << "operator long double()" << endl;
long curr = 0;
for (int i = 29; i>=0; i--) {
curr = curr * 10 + number[i];
}
return curr;
}
bool HugeInt::operator<=(const HugeInt& right) {
cout << "operator<=(const HugeInt& )" << endl;
if (size < right.size) {
return true;
}
if (size > right.size) {
return false;
}
for (int i = size-1; i>=0; i--) {
if (number[i] < right.number[i]) {
return true;
}
if (number[i] > right.number[i]) {
return false;
}
}
return true;
}
ostream& operator<<(ostream& out, const HugeInt& n)
{
cout << "operator<<(ostream&, const HugeInt& )" << endl;
out << "value : ";
for (int i = n.size-1; i >=0; i--) {
out << (char)(n.number[i] + '0');
}
out << " || size = " << n.size;
return out;
}
istream& operator>>(istream& in, HugeInt& n)
{
cout << "operator>>(istream&, HugeInt& )" << endl;
//Converting a string to char* can be done with c_str() member function of string type
string s;
in >> s;
n = HugeInt(s.c_str());
return in;
}
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