BigDataOperations/big_int.cpp at master · OvenVan/BigDataOperations · GitHub

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#include "big_int.h"
bool modulo_switch;
list_node *addition(list_node *data1, list_node *data2, list_node *modulus)
{
	clock_t start, end;
	start = clock();
	list_node *rtn = *data1 + *data2;
	end = clock();
	cout << "  Add Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s, ";
	if (modulo_switch)
	{
		start = clock();
		list_node* rtn_modulus = (*rtn % *modulus);
		rtn_modulus->replaceGuardian(rtn);
		delete (rtn_modulus);
		end = clock();
		cout << "  Module Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s\n  result: ";
	}
	TIME_BREAK = 0.02;
	return rtn;
}
pair<bool, list_node *> subtracion(list_node *data1, list_node *data2, list_node *modulus)
{
	clock_t start, end;
	start = clock();
	pair<bool, list_node *> temp = (*data1 - *data2);
	end = clock();
	cout << "  Subtract Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s, ";
	if (modulo_switch)
	{
		start = clock();
		//*temp.second = *(*temp.second % *modulus);
		list_node* rtn_modulus = (*temp.second % *modulus);
		rtn_modulus->replaceGuardian(temp.second);
		end = clock();
		cout << "  Module Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s\n  result: ";
	}
	TIME_BREAK = 0.02;

	return {temp.first, temp.second};
}
list_node *multiplication(list_node *data1, list_node *data2, list_node *modulus)
{
	clock_t start, end;
	start = clock();
	list_node *rtn = *data1 * *data2;
	end = clock();
	cout << "  Mulitplicate Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s, ";
	if (modulo_switch)
	{
		start = clock();
		//*rtn = *(*rtn % *modulus);
		list_node* rtn_modulus = (*rtn % *modulus);
		rtn_modulus->replaceGuardian(rtn);
		delete (rtn_modulus);
		end = clock();
		cout << "  Module Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s\n  result: ";
	}
	TIME_BREAK = 0.02;

	return rtn;
}
list_node *division(list_node *data1, list_node *data2, list_node *modulus)
{
	clock_t start, end;
	start = clock();
	list_node *rtn = (*data1 / *data2);
	end = clock();
	cout << "  Division Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s, ";
	if (modulo_switch)
	{
		start = clock();
		//rtn = *rtn % *modulus;
		list_node* rtn_modulus = (*rtn % *modulus);
		rtn_modulus->replaceGuardian(rtn);
		delete (rtn_modulus);
		end = clock();
		cout << "  Module Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s\n  result:";
	}
	TIME_BREAK = 0.02;

	return rtn;
}
list_node *power(list_node *data, list_node *power, list_node *modulus)
{
	clock_t start, end;
	if (!modulo_switch)
		cout << "    Warning: this might create a very big number. modulo option cannot be disabled.\n";
	start = clock();
	if ((power->get_aftr()->get_data() == 0) && (power->get_aftr()->get_aftr()->get_data() == -1))
		return create_list("1");
	list_node *digit = create_list();
	list_node *two = create_list("2");
	list_node *rtn = create_list("1");
	list_node *cpy_power = create_list(power);
	if (!((cpy_power->get_aftr()->get_data() == 1) && (cpy_power->get_aftr()->get_aftr()->get_data() == -1)))
	{
		while (1)
		{
			pair<list_node *, list_node *> temp = cpy_power->d_m(two);
			*cpy_power = *temp.first;
			digit->InsertItem(temp.second->get_aftr()->get_data() + 48, digit);
			delete (temp.first->destructor());
			delete (temp.second->destructor());
			if ((cpy_power->get_aftr()->get_data() == 1) && (cpy_power->get_aftr()->get_aftr()->get_data() == -1))
				break;
		}
	}
	digit->InsertItem('1', digit);
	delete (two->destructor());
	delete (cpy_power->destructor());

	list_node *ptr_digit = digit->get_aftr();
	while (ptr_digit->get_data() != -1)
	{
		list_node *temp = (*rtn * *rtn);
		*rtn = *(*temp % *modulus);
		delete (temp->destructor());
		if (ptr_digit->get_data() == 1)
		{
			list_node *temp = (*rtn * *data);
			*rtn = *(*temp % *modulus);
			delete (temp->destructor());
		}
		ptr_digit = ptr_digit->get_aftr();
	}
	end = clock();
	cout << "  Module Time : " << (double)(end - start) / CLOCKS_PER_SEC << "s\n  result:";
	return rtn;
}