Binary I/O

How do you write and/or read a character array to a file using a binary file stream. Thank you.

As I said, all your records must be the same length. But lets say the only thing you want to write is an array of characters that is 20 characters long.

char array[20];

memset(array,0,sizeof(array));

strcpy(array,"IfYouSaySo");

ofstream of;

of.open("file.dat", ios_base::out, ios_base::binary);

// if you wanted to write to a different offset than 0, use
// seekp member:
// of.seekp( sizeof(array) * 3, ios_base::beg );

of.write(array, sizeof(array));

of.close();