Struggle with matrices

[RZgerr]

I am struggling to complete this matrices task. I just need the program to display each matrix and stat if they are equal. I would really appreciate any help of where I have went wrong as I am new to this.

#include <iostream>
#include <iomanip>


#define ROWS 4
#define COLS 4

using namespace std;

void displayMatrix(int matrix[ROWS][COLS]);

int main()
{
int matrixA[ROWS][COLS] =
{
{ 1, 0, 19, -3 },
{ 0, 2, -147, 5 },
{ 19, -147, 3, 42 },
{ -3, 5, 42, 4 }
};



int matrixB[ROWS][COLS]= {
{42, 17, -1, 3},
{92, 77, 0, -2},
{4, 4, -2, 3},
{1, 23, 19, 47}
};


// Display matrixA
cout << "matrixA:" << endl;
displayMatrix(matrixA);

//Display matrixB
cout << "matrixB:" << endl;
displayMatrix(matrixB);

int matrix(int matrixA[ROWS][COLS], int matrixB[ROWS][COLS], bool isEqual);

bool isEqual = 1;


if(isEqual == 1)
{
cout << "\nMatrix a is Equal to Matrix b" << isEqual << endl;
}
cout << endl;
return 0;
}



int matrix(int matrixA[ROWS][COLS], int matrixB[ROWS][COLS], bool isEqual){

int columns, rows;


isEqual = 1;
for(rows = 0; rows < ROWS; rows++)
{
for(columns = 0; columns < COLS; columns++)
{
if(matrixA[rows][columns] != matrixB[rows][columns])
{
isEqual = 0;
}
}
}

return isEqual;
}




/******************************************************************************
*
* Name: displayMatrix
* Parameters: matrix - 2D matrix to display
* Returns: nothing
* Globals: none
* Description: This functions displays the contents of the 2D matrix passed
* as a parameter.
*
*****************************************************************************/

void displayMatrix(int matrix[ROWS][COLS])
{
for (int row = 0; row < ROWS; row++)
{
for (int col = 0; col < COLS; col++)
{
cout << setw(8) << matrix[row][col];
}
cout << endl;
}
}

[lastchance]

Use code tags.

Don't put the declaration of your function inside main() - put it at the top where you have the other one.

You don't need an argument isEqual since you return this from the function - it can be just a local variable in that function.

You don't write anything if the matrices are NOT equal.

[seeplus]

In C++ it's preferable to use constexpr instead of #define. Perhaps:

include <iostream>
#include <iomanip>

constexpr size_t ROWS {4};
constexpr size_t COLS {4};

void displayMatrix(const int matrix[ROWS][COLS]);
bool isEqual(const int matrixA[ROWS][COLS], const int matrixB[ROWS][COLS]);

int main() {
	const int matrixA[ROWS][COLS] { { 1, 0, 19, -3 }, { 0, 2, -147, 5 }, { 19, -147, 3, 42 }, { -3, 5, 42, 4 } };
	const int matrixB[ROWS][COLS]  { {42, 17, -1, 3}, {92, 77, 0, -2}, {4, 4, -2, 3}, {1, 23, 19, 47} };

	std::cout << "matrixA:\n";
	displayMatrix(matrixA);

	std::cout << "matrixB:\n";
	displayMatrix(matrixB);

	std::cout << "\nMatrix a is Equal to Matrix b: " << std::boolalpha << isEqual(matrixA, matrixB) << '\n';
}

 bool isEqual(const int matrixA[ROWS][COLS], const int matrixB[ROWS][COLS]) {
	for (size_t rows = 0; rows < ROWS; ++rows)
		for (size_t columns = 0; columns < COLS; ++columns)
			if (matrixA[rows][columns] != matrixB[rows][columns])
				return false;

	return true;
}

void displayMatrix(const int matrix[ROWS][COLS]) {
	for (size_t row = 0; row < ROWS; ++row) {
		for (size_t col = 0; col < COLS; ++col)
			std::cout << std::setw(8) << matrix[row][col];

		std::cout << '\n';
	}
}