12.06.cpp

/*
 * Exercise 12.6: Write a function that returns a dynamically allocated vector
 * of ints.  Pass that vector to another function that reads the standard input
 * to give values to the elements. Pass the vector to another function to print
 * the values that were read.
 *
 * By Faisal Saadatmand
 */

#include <iostream>
#include <string>
#include <vector>
#include <memory>

std::vector<int> *allocVector()
{
	return new std::vector<int>();
}

void fillVector(std::istream &is, std::vector<int> *pv)
{
	int i;
	while (is >> i)
		pv->push_back(i);
}

void printVector(std::ostream &os, std::vector<int> *pv)
{
	for (auto &elem : *pv)
		os << elem << ' ';
}

int main()
{
	auto *p = allocVector();
	fillVector(std::cin, p);  
	printVector(std::cout, p);
	std::cout << std::endl;
	delete p;
	p = nullptr;
	std::cout << p << '\n';
	return 0;
}