Assigning pointers to arrays.

[Anonymous]

Hi,

How do I assign a pointer to an array?
The following code doesn't compile...

int myarr[8][8];
/*
... here i'm filling the array
*/
int *ptrarr;
ptrarr = myarr;

I tried to use the usual form for non-arrays (ptrarr=&myarr) but it also doesn't work... I'm at loss here.

Mario

[Anonymous]

I am having similiar problems with arrays of pointers to pointers (I have posted in programming forum about it) Though i think i can help with the fundementals (I think:)
Since you are using a two dimensional array, you cannot assign a double indirected pointer to a single indirected pointer. In other words, your multi-dimensional array is actually two sets pointers wrapped up into one, its an array of pointers to pointers. So in order to assign the Addresses of your multi-dimensional array into another, you have to double indirect it.
Like this:

int** ptrarr;
ptrarr = myarr;

Its confusing as hell, YES.
I am still trying to get it. . . So dont be angry if i am wrong:)

Good Luck, Sir
Chris Brandt

[Anonymous]

How could I be angry when someone tries to help me :)

Thanks Chris. :)

Mario

[Anonymous]

Hi Mario

This is how it's done:

int myarr[8][8];
/*
... here i'm filling the array
*/
int *ptrarr;
ptrarr = &myarr[0][0]; // note this line!

I hope this helps!

Dave Carter

PS - Give me a shout if you want some more explanation.

[Anonymous]

You can find programs in C whith this subjet, but... in Spanish languaje.
They are in "Arrays" folder in the URL:

www.geocities.com/ismaelcamarero

I've also a tutorial about "Pointers " in Tutoriales (PowerPoint file)

Good Luck!

[Troy Scheffel]

Try posting on comp.lang.c++ or comp.lang.c++.moderated newsgroups.  You'll receive answers from professional C++ developers.  I've learned a lot browsing those newsgroups.

[Troy Scheffel]

Try posting on comp.lang.c++ or comp.lang.c++.moderated newsgroups.  You'll receive answers from professional C++ developers.  I've learned a lot browsing those newsgroups.