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Thread: pointers

  1. #1

    Thread Starter
    Lively Member
    Join Date
    Sep 2000
    Location
    England
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    94

    pointers

    is it possible to get a pointer to point to an array and then pass that pointer into a function so the function can access the array and write into another array and then return the pointer to that array.


    cheers
    Peter
    "Let's all join forces, rule with an iron hand...and prove to all the world, metal rules the land..."
    -- Judas Priest

    My email is [email protected]

  2. #2
    Zaei
    Guest
    Code:
    INT array1[10];
    INT* pa1 = &array1[0];
    
    INT* arrayfunc(INT* arr1, INT numitems)
    {
       INT* pa2 = new INT[20];
       for(INT i = 0; i < numitems; i++)
       {
            //do whatever
       }
       return pa2;
    } 
    
    INT main()
    {
       INT* arr = arrayFunc(pa1, 10);
    }
    Like that?

    Z.

  3. #3
    transcendental analytic kedaman's Avatar
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    Mar 2000
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    0x002F2EA8
    Posts
    7,221

    bad programming practice

    I don't recommend you use new in a function without using delete on it, that can cause memory leaks or unexpected crashes.

    If you're let's say trying to copy an array of fixed size to another of fixed size, pass a pointer to both arrays
    Use
    writing software in C++ is like driving rivets into steel beam with a toothpick.
    writing haskell makes your life easier:
    reverse (p (6*9)) where p x|x==0=""|True=chr (48+z): p y where (y,z)=divMod x 13
    To throw away OOP for low level languages is myopia, to keep OOP is hyperopia. To throw away OOP for a high level language is insight.

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