This may be completely incorrect, but when you do

ip_arr[i] = a+i;

you're directly adding 0-99 to a memory location, correct? This is entirely neglecting the fact that integers are going to take up a larger space, right? So in reality it should be something like:

ip_arr[i] = a+(i*[insert memory size of your data type here]);

Normally using the syntax of arrays, the computer does this for you since it knows what data type your array is, so you can do things like myArray[a+i], but since you're adding directly to a memory location you have to factor in the size between each element according to the data type...?
If I'm wrong in my understanding of this please tell me, I'm new at this and would be happy to learn.

Well I didnt finish that problem in time so whatever. Anyways,I checked the solution posted today and it was like


Int **iparr = new *int [100];
Then a for loop

This is beyond fucked up because the text never ever covered double pointers and our professor did not show us how to use double pointers

double pointers aren't all that special if you understand pointers, but that question was phrased wayyyy off

...?

from that you would draw int **ip_arr = new int*[100]??

also, I hope this is your first time viewing this thread or fuck you for not giving me that hint :[

yea, you don't know what you're talking about

int* foo[size] is in fact an array of integer pointers, and the result is foo being a pointer to that array

This post was edited by irimi on Sep 2 2012 12:35pm

The assignment is clearly dealing with dynamic memory allocation. Statically declaring an array of pointers and using the array name as the "resulting pointer" would get you the correct results, in a 'black box' way of thinking. However, dynamically allocating an array of pointers and declaring a double pointer to hold its location would be the reasonable thing to do for this assignment. I don't understand the confusion you're having.

it made sense AFTER I saw the solution and thought about it for awhile....but how come you couldn't have told me this before I lost credit :/

Because I saw the thread at the time of my first post, and I was pointing out a problem with the code you had posted. Sorry :/

lol it's okay man. Important thing is I understand it now~