/**************************************************************
 * program:	matrix_add.c
 * 
 * description:	matrix addition
 *
 * author:	Mark Allen Weiss 
 *		(http://www.cs.fiu.edu/~weiss/dsaa_c2e/files.html)
 * modified by:	Phil White
 **************************************************************/
#include <stdio.h>

typedef int Matrix[ 2 ][ 2 ];

/* Standard matrix multiplication */
/* Arrays start at 0 */

void MatrixAdd( Matrix A, Matrix B, Matrix C, int N ) {
    int i, j;

    for( i = 0; i < N; i++ ){
        for( j = 0; j < N; j++ ){
            C[ i ][ j ] = A[ i ][ j ] + B[ i ][ j ];
	}
    }
}

int main(int argc, char *argv[] )
{
    Matrix A = { { 1, 2 }, { 3, 4 } };
    Matrix B = { { 9, 5 }, { 8, 11 } };
    Matrix C;

    MatrixAdd( A, B, C, 2 );

    // Note you should make sure the 4 locations of the matrix
    // are someplace that I can see it in your trace

    printf( "%6x %6x\n%6x %6x\n", C[ 0 ][ 0 ], C[ 0 ][ 1 ],
          C[ 1 ][ 0 ], C[ 1 ][ 1 ] );
    return 0;
}