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Vector issues

impetus (70)
My book is missing syntax for classes with vectors.
Please advise how to convert my code from array to vector.


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#include <string>
#include <array>
#include <vector>

class Hugeinteger
{
public:

static const size_t arraySize = 40; 


Hugeinteger( std::vector< int, arraySize > &digitsArray );


void Input   () ;
void Output  () ;
void Chooser () ;
void Compare () ;
void Add     () ;

void isLessThanOrEqualTo () ;
void isGreaterThanOrEqualTo () ;
void isLessThan () ;
void isNotEqualTo() ;
void isEqualTo() ;
void isZero  ();


private:

std::vector< int, arraySize > digits; 
}; 


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#include <iostream>
#include <iomanip>
#include "Hugeinteger.h" 
#include <vector>
	
using namespace std;
int key1,key2,key;

	static int counterX;
	Hugeinteger::Hugeinteger( vector< int, arraySize > &digitsArray )
	: digits( digitsArray )
	{
	} 

	void Hugeinteger::Input () 

	{

	
	cout << "Entering Input" << endl;
	cin >> key;
	digits[counterX] = key;

	counterX++;
	
	}

	void Hugeinteger::Output () 

	{

	cout << "Entering Output" << endl;
	for (size_t i = 0; i < arraySize; i++)
	cout << digits[i] << " ";

	}
	
	
	void Hugeinteger::Compare () 

	{
	int min,max;
	

	cout << "enter compare\n\n" << endl;
	cout << "choose operation\n\n" << endl;
	cout << "[1] to isEqualTo" << endl;
	cout << "[2] to isNotEqualTo" << endl;
	cout << "[3] to isGreaterThan" << endl;
	cout << "[4] to isLessThan" << endl;
	
	
	cin >> key;
	switch(key)
	{
	case 1:
	isEqualTo();
	break;
	case 2:
	
	break;
	case 3:
	
	break;
	case 4:
	
	break;
	
	}

	
	
	}
	
	void Hugeinteger::Add () 

	{
	
	cout << "enter add\n\n" << endl;
	cout << "choose units to add\n\n" << endl;
	cin >> key1;
	cin >> key2;
	
	cout << digits[key1-1] << " " << digits[key2-1] << endl;
	cout << "Sum = " << digits[key1-1]+digits[key2-1] << endl;
	}
	
	
	void Hugeinteger::isEqualTo ()  
	{
	cout << "isEqualTo\n\n" << endl;
	cout << "choose units to compare\n\n" << endl;
	cin >> key1;
	cin >> key2;
	
	if (digits[key1-1] == digits[key2-1])
	cout << "True" << endl;
	else
	cout << "False" << endl;
	}
	
	

	void Hugeinteger::Chooser () 
     {
	int key;
	while (key !=-1)
	{
	cout << "counterX = \n" << counterX << endl;
	cout << "Choose Operation\n" << endl;
	cout << "[1] to input data" << endl;
	cout << "[2] to output data" << endl;
	cout << "[3] to compare data" << endl;
	cout << "[4] to add data" << endl;
	
	cin >> key;
	switch(key)
	{
	case 1:
	Input();
	break;
	case 2:
	Output();
	break;
	case 3:
	Compare();
	break;
	case 4:
	Add();
	break;
	
	}

	}
     }


/*
9.14 ( HugeInteger Class) Create a class HugeInteger that uses a 40-element array of digits to
store integers as large as 40 digits each. Provide member functions input , output , add and subtract .
For comparing HugeInteger objects, provide functions isEqualTo , isNotEqualTo , isGreaterThan ,
isLessThan , isGreaterThanOrEqualTo and isLessThanOrEqualTo —each of these is a “predicate”
function that simply returns true if the relationship holds between the two HugeInteger s and re-
turns false if the relationship does not hold. Also, provide a predicate function isZero . If you feel
ambitious, provide member functions multiply , divide and modulus .
*/






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#include <array>
#include "Hugeinteger.h" 
#include <vector>

using namespace std;

int main()
 
 {

 vector< int, Hugeinteger::arraySize > digits =
 
 {4, 8, 15, 16, 23, 42, 85, 91, 76, 87,33,22,12,44,2,2,2,2,2,2,21,3,4,3,2,2,4,2,3,2,42,6,3,4,5,2,1,77,213,34};

 Hugeinteger obj1(digits);
 obj1.Chooser();


 } // end main
Last edited on
seeplus (6457)
My book is missing syntax for classes with vectors.


See http://www.cplusplus.com/reference/vector/vector/
impetus (70)
Thanks!
Solved
Last edited on
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