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];
			}
			}
			}