pointerdataclassimp.cpp

data+structures+using+c的源码

#include <iostream>
#include <cassert>

#include "pointerDataClass.h"

using namespace std;

void pointerDataClass::print() const
{
	cout<<"x = "<<x<<endl;

	cout<<"p = ";

	for(int i = 0; i < lenP; i++)
		cout<<p[i]<<" ";
	cout<<endl;
}

void pointerDataClass::setData()
{
	cout<<"Enter an integer for x: ";
	cin>>x;
	cout<<endl;

	cout<<"Enter "<<lenP<<" numbers: ";
	
	for(int i = 0; i < lenP; i++)
		cin>>p[i];

	cout<<endl;
}

void pointerDataClass::destroyP()
{
	lenP = 0;
	delete [] p;
	p = NULL;
}

pointerDataClass::pointerDataClass(int sizeP)
{
	x = 0;

	if(sizeP <= 0)
	{
		cout<<"Array size must be positive"<<endl;
		cout<<"Creating an array of size 10"<<endl;

		lenP = 10;
	}
	else
	lenP = sizeP;

	p = new int[lenP];
	assert(p != NULL);
}

pointerDataClass::~pointerDataClass()
{
	delete [] p;
}

	         //copy constructor
pointerDataClass::pointerDataClass 
 	           (const pointerDataClass& otherObject)
{
	x = otherObject.x;

	lenP = otherObject.lenP;
	p = new int[lenP];
	assert(p != NULL);

	for(int i = 0; i < lenP; i++)
		p[i] = otherObject.p[i];
}