ch-05-FunctionOverloading.cpp
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ch-05-FunctionOverloading.cpp
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			/*
			* ch-05-FunctionOverloading.cpp
			*
			* Function Overloading
			*
			* Created on: Oct 5, 2012
			* Author: Simone Deparis <simone.deparis@epfl.ch>
			*/

			#include <iostream>

			void Multiply(double scalar, double u, double v, int n);

			void Multiply(double scalar, double A, double B, int n);

			int main(int argc, char *argv[]) {
			int n = 2;
			double *u = new double[n];
			double *v = new double[n];
			double *A = new double [n];
			double *B = new double [n];
			for (int i = 0; i < n; i++) {
			A[i] = new double[n];
			B[i] = new double[n];
			}

			u[0] = -8.7;
			u[1] = 3.2;
			A[0][0] = 2.3;
			A[0][1] = -7.6;
			A[1][0] = 1.3;
			A[1][1] = 45.3;
			double s = 2.3, t = 4.8;

			// vector multiplication
			Multiply(s, u, v, n);

			// matrix multiplication
			Multiply(t, A, B, n);

			delete[] u;
			delete[] v;
			for (int i = 0; i < n; i++) {
			delete[] A[i];
			delete[] B[i];
			}
			delete[] A;
			delete[] B;

			return 0;
			}

			void Multiply(double scalar, double u, double v, int n) {
			// v = scalar*u (scalar by vector)
			for (int i = 0; i < n; i++) {
			v[i] = scalar * u[i];
			}
			}

			void Multiply(double scalar, double A, double B, int n)

			{
			// B = scalar*A (scalar by matrix)
			for (int i = 0; i < n; i++) {
			for (int j = 0; j < n; j++) {
			B[i][j] = scalar * A[i][j];
			}
			}
			}