Counting Int's in a File

This is a discussion on Counting Int's in a File within the C++ Programming forums, part of the General Programming Boards category; Sorry if this is out there, I cannot find what I'm looking for. What I'm trying to do is read ...

  1. #1
    Registered User
    Join Date
    Mar 2005
    Location
    Freeport, IL
    Posts
    32

    Counting Int's in a File

    Sorry if this is out there, I cannot find what I'm looking for.

    What I'm trying to do is read a list of number from a txt file and then count how many total numbers there is in the txt file.

    Cannot seem to figure this out.

    Thanks

  2. #2
    Registered User
    Join Date
    Jan 2005
    Posts
    7,319
    You can just read each number one at a time in a loop, then increment a counter each time.

    What have you tried that didn't work?

  3. #3
    Registered User
    Join Date
    Mar 2005
    Location
    Freeport, IL
    Posts
    32
    I guess I'm new to File I/O how does it read the numbers, does it differentiate between the spaces and the number like 123? And info on a good file I/O Tut.

  4. #4
    (?<!re)tired Mario F.'s Avatar
    Join Date
    May 2006
    Location
    Portugal
    Posts
    7,162
    There's heaps of tutorials on this site
    Originally Posted by brewbuck:
    Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.

  5. #5
    Registered User hk_mp5kpdw's Avatar
    Join Date
    Jan 2002
    Location
    Northern Virginia/Washington DC Metropolitan Area
    Posts
    3,675
    Simply using >> in a loop should be all you need to read in a file populated with distinct numeric values (ints) seperated by whitespace.
    I used to be an adventurer like you... then I took an arrow to the knee.

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Data Structure Eror
    By prominababy in forum C Programming
    Replies: 3
    Last Post: 01-06-2009, 08:35 AM
  2. Need Help Fixing My C Program. Deals with File I/O
    By Matus in forum C Programming
    Replies: 7
    Last Post: 04-29-2008, 07:51 PM
  3. Simple File encryption
    By caroundw5h in forum C Programming
    Replies: 2
    Last Post: 10-13-2004, 10:51 PM
  4. System
    By drdroid in forum C++ Programming
    Replies: 3
    Last Post: 06-28-2002, 10:12 PM
  5. Need a suggestion on a school project..
    By Screwz Luse in forum C Programming
    Replies: 5
    Last Post: 11-27-2001, 01:58 AM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21