functions and arrays

This is a discussion on functions and arrays within the C Programming forums, part of the General Programming Boards category; I am new to programming and have been giving a question: write a function DisplayArray with two parameters-an array of ...

  1. #1
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    Question functions and arrays

    I am new to programming and have been giving a question:

    write a function DisplayArray with two parameters-an array of integers and the numnber of elements in the array. The function its to print each element of the array on a seperate line. Write a program to test the fuction.

    Im having a few problems understanding this as i thought in order to use arrays you had to define the size of it at the begging of the code?
    can anyone pleaseee help me understand how to do this!!

  2. #2
    It's full of stars adrianxw's Avatar
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    >>> to define the size of it at the begging of the code?

    True, but think about it, inside your output function, how will you know how many elements were declared?
    Wave upon wave of demented avengers march cheerfully out of obscurity unto the dream.

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    well thats where my problem is im at a loss how to tackle this problem any hints will be gratefully accepted. I have been learning alot from the help i get on this board :0)

  4. #4
    Skunkmeister Stoned_Coder's Avatar
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    Code:
    void DisplayArray(int Array[],size_t Count)
    {
    int i;
    for(i=0;i<Count;++i)
    {
    /* print Array[i] */
    /* print '\n' */
    }
    }
    Whats so hard about that???
    or this....
    Code:
    int main()
    {
    size_t Size=10;
    int Array[Size]={1,2,3,4,5,6,7,8,9,10};
    DisplayArray(Array,Size);
    return 0;
    }
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

  5. #5
    Budding Synth Programmer samGwilliam's Avatar
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    I've never understood the point of those size_t thingies. What is the underlying type of one?

  6. #6
    Skunkmeister Stoned_Coder's Avatar
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    unsigned int.
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

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    firstly the question doesnt say you have 10 arrays it has a parameter to answer this and secondly that displays them in increases of one what if they were say mixed up numbers?

  8. #8
    It's full of stars adrianxw's Avatar
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    >>> firstly the question doesnt say you have 10 arrays

    ... and SC's solution does not have 10 arrays.

    >>> secondly that displays them in increases of one what if they were say mixed up numbers?

    ... so try it and find out?

    Come on! You ask for hints, you got hints, you've even got the solution, what more is it that you want?!?!?!?!?
    Wave upon wave of demented avengers march cheerfully out of obscurity unto the dream.

  9. #9
    Skunkmeister Stoned_Coder's Avatar
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    You can lead a horse to water but.....
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

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