Dynamic array crashes program

[EhqpDjzh]

I am attempting to write a library that loads a map. I load a file, and set its contents to a dynamic array. When I print the X and Y position of the for loops, the array cannot seem to get past (0,2). I am using the TDM compiler. The program becomes unresponsive, and must be closed out of. I have tried a vector of character vectors as well, again, same problem.
Code:

#include <fstream>
#include <iostream>
#include <exception>
#include <vector>
class map{
public:
	char ** objects;
	map(std::string location,int x,int y){
		objects = new char* [x];
		for (int i; i<y; i++){
			objects[i]= new char [y];
		}
		std::ifstream file(location);
		if ( !file ){
			std::cout << "File not found.";
			system("pause");
			exit( 1 );
		}
		char ch;
		try{
			for(int y_pos=0; y_pos<y; y_pos++){
				for(int x_pos=0; x_pos<x; x_pos++){
					file.get(ch);
					std::cout << x_pos;
					std::cout << y_pos << std::endl;
					objects[x_pos][y_pos]=ch;  //When this is commented out, the program does not crash.
				}
			}	
		}catch(std::exception& e){
			std::cout << e.what();
		}
		file.close();
	}
};

Any help onto how I can fix this would be greatly appreciated.

[Hippogriff]

You aren't assigning i to 0.
for (int i; i<y; i++){

Also I would probably use a vector of strings or something similar if you are trying to go the C++ way instead of a double char pointer.