Trouble with opening a file.

[EverGreen1231]

Hello,

The code snippet below is part of a homework problem I'm doing for class. I've re-worked code and searched the internet for close to an hour hoping to come across some decrypting documentation that might shed some light on my problem.

I expect the file to open, but for some reason it's not opening.

Any help would be greatly appreciated.

(Note of Disclaimer: I'm not expecting anyone to do my homework, I simply would like a fresh pair of eyes to look at my code.)

Much obliged.

  std::string sExecutable = EXEFILEPATH;
	std::string sReadingExecutable;
	std::ifstream input3(sExecutable, std::ios::in | std::ios::binary);
	std::vector<char> cExe;
	char cBinary;
	input3.open(EXEFILEPATH);
	if (input3.is_open()){
		std::cout << "Yay! It's open!\n";
		/*while (input3 >> cBinary){
			cExe.push_back(cBinary);
			std::cout << cBinary;
		}*/
	}
	else std::cout << "Somethin' went wrong, boy!\n";
	input3.close();

[MiiNiPaa]

std::ifstream input3(sExecutable, std::ios::in | std::ios::binary); //Opens file
input3.open(EXEFILEPATH); //And opens it AGAIN 

http://en.cppreference.com/w/cpp/io/basic_filebuf/open

If the associated file was already open, returns a null pointer right away.
Return value
this on success, a null pointer on failure.

http://en.cppreference.com/w/cpp/io/basic_filebuf/is_open

Returns true if the most recent call to open() succeeded and there has been no call to close() since then.

So your second open() breaks your code.