ch-04-ex-03-solution.cpp
No OneTemporary
Actions

Subscribers

None

File Metadata

	/*
	* chapter-04-exercise-03.cpp
	*
	* Dynamic memory for vectors
	*
	* Created on: Sep 24, 2012
	* Author: Radu Popescu <radu.popescu@epfl.ch>
	*/

	#include <iostream>

	int main(int argc, char *argv[]) {
	// Do everything one billion times
	for (int n = 0; n < 1000000000; ++n) {
	// Allocate vectors
	double *v = new double[3];
	double *w = new double[3];

	// Assign values
	v[0] = 1.0;
	v[1] = 2.0;
	v[2] = 3.0;
	w[0] = 4.0;
	w[1] = 5.0;
	w[2] = 6.0;

	// Compute scalar product
	double s = 0;
	for (int i = 0; i < 3; ++i) {
	s += v[i] * w[i];
	}
	std::cout << "The scalar product of v and w is: " << s << std::endl;

	// Cleanup
	delete[] v;
	delete[] w;
	}

	return 0;
	}