ch-05-ex-05-solution.cpp
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	/*
	* chapter-05-exercise-05.cpp
	*
	* Matrix multiply of A(n x m) and B (p x q)
	* - matrices are each read from a text file passed as a command line parameter
	* - the file has the following format:
	* - first line n_rows n_cols
	* - following lines are the elements of the matrix
	* example:
	* 4 3
	* 1 2 3
	* 4 5 6
	* 7 8 9
	* 10 11 12
	*
	* - run the exercise as: ./ch-05-ex-05-solutions A.dat B.dat
	*
	* Created on: Oct 8, 2012
	* Author: Radu Popescu <radu.popescu@epfl.ch>
	*/

	#include <cassert>
	#include <fstream>
	#include <iostream>

	#include "ArrayUtil.hpp"

	int main(int argc, char *argv[]) {
	if (argc != 3) {
	std::cout << "Missing arguments. Please run the exercise as:\n"
	<< " ./ch-05-ex-05-solutions A.dat B.dat" << std::endl;
	return -1;
	}

	const char *file_name_A = argv[1];
	const char *file_name_B = argv[2];

	double **A;
	double **B;
	int m, n, p, q;

	Read(file_name_A, A, m, n);
	Read(file_name_B, B, p, q);

	double **C;
	Allocate(C, m, q);

	Multiply(A, B, m, n, p, q, C);

	std::cout << "Matrix A: " << std::endl;
	Print(A, m, n, std::cout);
	std::cout << "Matrix B: " << std::endl;
	Print(B, p, q, std::cout);
	std::cout << "Matrix C = A * B: " << std::endl;
	Print(C, m, q, std::cout);

	Delete(A, m);
	Delete(B, n);
	Delete(C, m);

	return 0;
	}