File I/O Operations in C++

code_lover · #1 (**permalink**) August 9th, 2008, 05:45 AM

I am developing a ticket reservation system in C++. All information will be stored in a flat file.I have the following tasks:
1. Create Reservation
2. Search Reservation
3. Update Reservation
4. Delete Reservation

Now i have done the 1st task i.e. to create reservation. Now i a, required to search a specific string(reservation number) in my file so that i can retrieve the relevant information.

Could someone guide me here on how to search a record in a text file usinf the fstream.h library? Please provide a code example, thanks.

MAXOOD!

Life is an endless journey towards perfection

elvisfeverr · #2 (**permalink**) August 10th, 2008, 12:16 PM

you can go to each reservation number in your file and get that substring with a standart fuction then compare it.that should continue until end of the records.for example if your reservation number starts after ':' and ends with a newline or whitespace you can extract it easily.you can use getline() function to read a whole string with a delimiter for reading reservation number and compare it.

reservation number : ...
reservation number : ...