[HELP] Vector of vectors or structs

[gunman353]

So I took on a project which is beyond my current level and understanding of C++. Basically I am writing a program to accept user defined matrices, then to perform assorted functions to them such as converting them to RREF, finding the inverse, etc.. I am still at the point where I am reading in the matrix from the user, then just displaying a list of all the matrices entered. The next step I will be implementing is the ability to search and edit an existing matrix by name. Anyway, I have a bunch of errors, and obviously don't know what i'm doing.

error C3867: 'Matrix::fullMatrix': function call missing argument list; use '&Matrix::fullMatrix' to create a pointer to member
 error C2109: subscript requires array or pointer type
 error C2228: left of '.push_back' must have class/struct/union
 warning C4018: '<' : signed/unsigned mismatch
 error C2228: left of '.size' must have class/struct/union
 error C3867: 'Matrix::fullMatrix': function call missing argument list; use '&Matrix::fullMatrix' to create a pointer to member
 error C2109: subscript requires array or pointer type

Main class

struct Matrix
{
	int numOfRows, numOfColumns;
	string name;
	vector <double> oneRow; // holds one row
	vector < vector <double> > fullMatrix(int); // contain all of the rows, accessed by row number
};

void displayMenu();
Matrix addMatrix(vector <Matrix>);
void viewAll(vector <Matrix>);



int main()
{
	vector <Matrix> Matrices; // holds all of the matrices

	int choice; // choice from menu
	Matrix tempMatrix;
	
	
	do
	{
		displayMenu();
		cin >> choice;

		switch (choice)
		{
		case 1:
			Matrices.push_back(addMatrix(Matrices)); // adds full matrix struct to array of matrixes
			break;
		case 2:
			viewAll(Matrices);
			break;
		case 9:
			system("pause");
			return 0;
			break;
		default:
			cout << "\nERROR: Invalid Choice!";
			break;
		}
	} while (choice != 9);

	system("pause");
	return 0;
}

Add matrix

Matrix addMatrix(vector <Matrix>)
{
	Matrix newMatrix;

	cout << "\n Matrix name: ";
	cin >> newMatrix.name;

	cout << "\nNumber of rows: ";
	cin >> newMatrix.numOfRows;

	cout << "\nNumber of columns: ";
	cin >> newMatrix.numOfColumns;



	for (int i = 0; i < newMatrix.numOfRows; i++)
	{

		for (int j = 0; j<newMatrix.numOfColumns; j++)
		{
			int tempVal = 0;
			cout << "Enter the number for Matrix 1";
			cin >> tempVal;
			newMatrix.oneRow.push_back(tempVal);
		}
		newMatrix.fullMatrix[i].push_back(newMatrix.oneRow); // adds one row vector to all rows vector
	}


	return newMatrix;
}

View all

void viewAll(vector <Matrix> Matrices)
{
	Matrix newMatrix;

	for (int s = 0; s < Matrices.size(); s++)
	{
	cout << "\n\nName:  " << Matrices[s].name;

		for (int n = 0; n < Matrices[s].fullMatrix.size(); n++)
		{
			cout << Matrices[s].fullMatrix[s]; // this will not work, need a for loop for extracting rows from fullMatrix
			cout << endl;
		}
	}
}

Again, sorry for the really bad code. I'm getting confused with having structures inside vectors which are inside another vector. I would appreciate it if someone wouldn't mind giving me ideas on how to fix this. Sorry for coming here with so many errors.

[MikeyBoy]

Here:

vector < vector <double> > fullMatrix(int);

you're declaring a function called Matrix::fullMatrix that takes an int as an argument, and returns a vector of vectors. Nowhere in your posted code do you actually define the body of the function.

Here:

newMatrix.fullMatrix[i].push_back(newMatrix.oneRow);
(and elsewhere) you're attempting to use fullMatrix as a data member of Matrix.

If you want it to be a data member, why do you have the (int) in the declaration?