CPP

read string from binary file in c++

fstream readStringBF;
	readStringBF.open("Name.dat", ios::in | ios::binary);
	char n[30];
	if (readStringBF.is_open()) {
		readStringBF.read(n, 30);
		n[readStringBF.gcount()] = NULL;		//append string terminator
		cout << n;
		readStringBF.close();
	}
	else cout << "Unable to open file!";

binary file in c++

				//reading from a binary file
	int r;
	fstream readBinaryFile;
	readBinaryFile.open("Binary file.dat", ios::in | ios::binary);
	if (readBinaryFile.is_open()) {
		readBinaryFile.read((char*)&r, sizeof(r));
		cout << r;
		readBinaryFile.close();
	}
	else cout << "Unable to open file!";

binary file in c++

    //writing into a binary file
		            //int
	fstream bFile("Binary file.dat", ios::out | ios::binary);
	int x = 65;
	if (bFile.is_open()) {
		bFile.write((char*)&x, sizeof(x));
		bFile.close();
	}
	else cout << "Failed opening the file";

			       	//string
fstream binaryName;
	string s = "J.L";
	binaryName.open("Name.dat", ios::out | ios::binary);
	if (binaryName.is_open()) {
		binaryName.write(s.c_str(), s.size());
		binaryName.close();
	}
	else cout << "Unable to open the file!";