Printable View
PLEASE CAN ANYONE HELP ME AS TO HOW TO MODIFY A RECORD IN A FILE.....SUPPOSE I HAVE THIS FILE STRUCTURE:
RECORD # 1(LINE 1)
RECORD # 2(LINE 2)
RECORD #3 (LINE 3)
RECORD # 4(LINE 4)
NOW THAT I WANNA MODIFY THE THIRD RECORD...HOW DO I DO THAT..PLEASE HELP....!
USING C++ ONLY,
THNX,
REGARDS,
CONQUERER
A record of what? A database? What kind?
Also, don't yell - it'll limit the amount of people that want to help you.
Assuming each Record is composed of several different fields and the data in each field is numerical or a string without internal spaces and each field represents a data member of a userdefined struct or class then you can use the read() method of ifstreams to read in the information one record at a time or the input each field separately using the >>, which may need to be overloaded if the fields don't correlate to a primitive type. Are you using a container to hold all the Records? As you can see, much more information is needed before a definitive answer can be provided, and this is just for the simplest type of Record I can think of. Work out what you can and then ask a more focused question if you need to.