//This is the file SqrMatrix.cpp
#include
"adtsquare4.h"
SqrMatrix::SqrMatrix()
{
//This is the default constructor.
//Pre:
//Post:
all entries in SqrMatrix are 0
size = 50;
MakeEmpty(size);
}
SqrMatrix::SqrMatrix(int s)
{
// A constructor
//Pre:
//Post:
SqrMatrix is of size s and all entries
//
in SqrMatrix are 0
size = s;
MakeEmpty(size);
}
void SqrMatrix::MakeEmpty(int x)
{
//sets all entries of the SqrMatrix to 0
//Pre:
//Post: All entries of the SqrMatrix = 0
int
i,j;
if (x > size)
{
cerr<<"Attempt
to set entries that do not exist";
return;
//if you wish the program to stop as a
result of
//error, use the exit command instead
of return
}
for (i = 0; i < x; i++)
for (j = 0; j
< x; j++)
array[i][j] = 0;
}
void SqrMatrix::StoreValue(int i, int
j, valuetype value)
{
//Pre: SqrMatrix
is initialized
//
i and j are < size of the matrix
//Post:
The entry in the ith row and jth column =
//
value
//we can add error checking here to make
sure
//that i and j
are not out of bounds
array[i][j] = value;
}
void SqrMatrix::PrintMatrix()
{
//Pre: SqrMatrix
is initialized
//Post: SqrMatrix
is printed out
for (int i = 0; i
< size; i++)
{
for (int j = 0; j < size; j++)
cout<<array[i][j]<<'
';
cout<<endl;
}
}
void SqrMatrix::AddMatrix(SqrMatrix sqr)
{
//Pre: SqrMatrix
and sqr are intialized
//Post:
The final value of SqrMatrix is the
//
sum of SqrMatrix and sqr
for (int i = 0; i
< size; i++)
for (int j = 0; j < size; j++)
array[i][j] = array[i][j] + sqr.array[i][j];
}
//This file is SqrMatrix.h
#include<iostream>
#include<fstream>
using namespace std;
typedef
int valuetype;
class SqrMatrix
{
public:
SqrMatrix();
//This is the default constructor.
//Pre:
//Post: all entries in SqrMatrix
are 0
SqrMatrix(int s);
// A constructor
//Pre:
//Post:
SqrMatrix is of size s and all entries
//
in SqrMatrix are 0
void MakeEmpty(int x);
//Sets all entries of the SqrMatrix to 0
//Pre:
//Post: entries of x rows and colums of the SqrMatrix
//
= 0
void StoreValue(int i, int j, int
value);
//Function: stores value into the [i][j] position
//
of the square matrix
//Pre: i and j
are <= size of the matrix
//Post:
The entry in the ith row and jth column = value
void AddMatrix(SqrMatrix sqr);
//Function: adds sqr
to the matrix
//Pre: SqrMatrix
and sqr have been initialized
void PrintMatrix();
//Function:
Prints the matrix in rows and columns
//Pre: Matrix is initialized
//Post: SqrMatrix
is printed out
bool
Compare(SqrMatrix sqr);
//Function: Compares self with sqr
//Pre: self and sqr
are intialized
//Post: return value is true if all entries
are the same
private:
int
array[50][50];
int
size; // holds the size of the SqrMatrix
};
//This is the data
file
1 3 5
4 0 2
6 7 8
1 3 5
4 2 0
6 7 8
1 3 0
4 2 5
6 7 8
1 0 3
4 2 5
6 7 8
1 2 3
4 0 5
6 7 8
1 2 3
0 4 5
6 7 8
1 2 3
6 4 5
0 7 8