io_file.open [method]

io_file.open( string name, int mode )

closes the previously open file if any, opens the file name for operation mode mode, returns bool/sets errno

• mode must be one of FILE_READ, FILE_WRITE or FILE_READ|FILE_WRITE
• file is always opened in binary mode

f = io_file();
f.open( "file" ); // returns true or false, sets errno accordingly