In this lab exercise, you are required to write a C++ program to add two 4 * 5 matrices and then output the results to the screen.

* Prompt the user to enter the name of two files with matrices

* Compute the sum of the two matrices and output the results

* A sample run is as follows:

Please enter the name of the file containing data for Array 1: input1.txt Please enter the name of the file containing data for Array 2: input2.txt The sum is: 2 3 4 5 6 3 4 5 6 7 4 5 6 7 8 5 6 7 8 9 

* Further requirements:

* Create three functions:

*readArray with void return and one 2D array argument and one string argument

*printArray with void return and one 2D array argument

*sumArray with void return and three 2D array arguments

*Separate your code into three files as described in the lab:

*main.cpp

*myFunction.cpp

*myFunction.h

*Remember, you will have to break the compiling into three steps now:

*g++ -c main.cpp

*g++ -c myFunction.cpp

*g++ main.o myFunction.o -o main

*The two input files are available by clicking: input1.txt and input2.txt

*Once again, your cousin Brittany has been writing code. She has made 6 mistakes. Also, she hasn't broken her code into three files.

This is in c++ program. Please follow all instructions and the output of your code.

input1.txt

1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 

input2.txt

1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 

Britany's code with 6 mistakes (not in three files yet).

#include #include using namespace std;

const unsigned int R_SIZE=4; const unsigned int C_SIZE=5;

void readArray( int p_Array[][], string fName ); // function prototype

int main() { int i, j; int Nums1[C_SIZE][R_SIZE]; string filename; cout << "Please enter the name of the file containing data for Array 1: "; cin >>filename; readArray(Nums1[][],filename); for ( i=0; i < C_SIZE; i++) { for ( j=0; j< R_SIZE; j++) { cout<< Nums1[i][j] << " "; } cout << endl; }

}

// Function: readArray // Purpose: To read values into an array. // Parameters: Base address of an array. // Returns: void // -------------------------------------------------------- void readArray(int p_Array[][C_SIZE], string fName) {

ifstream inF; int i, j;

inF.open(fName.c_str());

for ( i=0; i < R_SIZE; i++) { for ( j=0; j< C_SIZE; i++) { inF >> Nums1[i][j]; } }

} // end InitArray function