Help on obtaining an array through a class!!!

This is a discussion on Help on obtaining an array through a class!!! within the C++ Programming forums, part of the General Programming Boards category; I have a homework assignment and i can't figure out how to cin from a file that contains the data ...

  1. #1
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    Question Help on obtaining an array through a class!!!

    I have a homework assignment and i can't figure out how to cin from a file that contains the data with a command and two doubles such as:
    r 10.3 4.6
    r 5.7 6.2
    p 2.1 3.6
    etc.... the two numbers need to go into one element of the array
    so that they can be manipulated and continue adding elements until the quit command is reached.......it's a little hard to explain but can anyone help me.....PLEASE!!!!!
    Thanx Alot!

  2. #2
    semi-colon generator ChaosEngine's Avatar
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    post what you've done so far and where you're having trouble. We're happy to give you a hand, but no-one will do your homework for you.
    "I saw a sign that said 'Drink Canada Dry', so I started"
    -- Brendan Behan

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    You need to use ifstream to grab input from your file, if that is what you meant. The header file is fstream.h; try looking it up . Make sure you get the parsing working before you try to write the rest of your program.

    the two numbers need to go into one element of the array
    That's impossible. Maybe what you want to do is make a 2d array.

  4. #4
    carry on JaWiB's Avatar
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    >>That's impossible.
    Not necessarily
    "Think not but that I know these things; or think
    I know them not: not therefore am I short
    Of knowing what I ought."
    -John Milton, Paradise Regained (1671)

    "Work hard and it might happen."
    -XSquared

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    Well, true, you could use a char array or something, but why would you want to do that?

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    Just Lurking Dave_Sinkula's Avatar
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    Quote Originally Posted by joeprogrammer
    Well, true, you could use a char array or something, but why would you want to do that?
    What!? Use a(n array of objects of some) class or a struct? Who would ever want to do that?
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

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