c++ 2d array maze navigation - c++

Question

I'm new to c++ and wondering if I'm doing this the best way. I need to read in a line from a text file and build an array from it and then navigate it. Let me know if I'm doing something wrong. Can I access matrix the way I am?
header:
#ifndef MAZE_HPP_
#define MAZE_HPP_
#include <fstream>
#include <vector>
#include <string>
class Maze
{
public:
Maze(int size);
~Maze() {}
enum Direction { DOWN, RIGHT, UP, LEFT };
// Implement the following functions:
// read maze from file, find starting location
void readFromFile(std::ifstream &f);
// make a single step advancing toward the exit
void step();
// return true if the maze exit has been reached, false otherwise
bool atExit();
// set row and col to current position of 'x'
void getCurrentPosition(int &row, int &col);
// You can add more functions if you like
private:
// Private data and methods
int size;
static string matrix[30][30];
};
#endif /* MAZE_HPP_ */
c++ file:
#include <iostream>
#include "maze.hpp"
#include "utils.hpp"
#include <vector>
#include <string>
Maze::Maze(int size) {
size = size;
}
Maze::void readFromeFile(std::ifstream &f) {
std::string line;
int i, j;
while(std::getline(f, line)) {
for(i = 0; i < line.length(); i++) {
for(j = 0; j < line.length(); j++) {
matrix[i][j] = line.at(j);
}
}
}
}
Maze::void step() {
}
Maze::bool atExit() {
}
Maze::void getCurrentPosition(int &row, int &col) {
}

Answer 1

Maze::void readFromeFile {}
Maze::void step() {}
Maze::bool atExit() {}
Maze::void getCurrentPosition(int &row, int &col) {}
these should be
void Maze::readFromeFile{}
void Maze::step() {}
bool Maze::atExit(){}
void Maze::getCurrentPosition(int &row, int &col){}