Thread: Variable size arrays

Hi all, I'm having trouble with arrays ( Yes I'm new to C )

Here is what I want to do in a nutshell:

#include <stdio.h>

main ()
{
printf("Please input the size of the array you want");
int arrsize;
scanf("%d",&arrsize);
int myarray [arrsize];
}

I can't do that so I've been experimenting with malloc and have come up with this:

int arrsize;
scanf("%d",&arrsize);
int *numptr;
numptr = (int *) malloc (arrsize);

This is where I'm stuck, now I've got this chunk of memory ( is it the right size? ) how can I make it so it acts as an array.
IE

myarray [0]
myarray [1]
...
myarray [arrsize]

Thanks in advance for any help.

thanks, will I then be able to use that memory space as an array. If so how do I access it?

I want to add numbers to each each member of the array like this ideally:

int i;
for (i=0;i<=arrsize;i++) {
myarray[i] = i;
}

Any ideas

Good link thanks, I've sorted my problem now.