Re: [Dev-C++] Correct use of pointers

[jo m. <non...@ho...>]

Hello.
I don't see any problem with your example (except for the non-standard "void 
main"). Tell me if I'm wrong:
A pointer in the stack is the same thing as an automatic variable in the 
stack: it is released when you go out of scope, so no problem. Furthermore: 
if you are concerned about eficiency, you shouldn't use the free store 
unless you need it (for example when using dinamically allocated objects).
If you all don't aggree, please let me know. Thanks.



>From: André Macário Barros <and...@su...>
>To: "Dev-Cpp-Users" <dev...@li...>
>Subject: [Dev-C++] Correct use of pointers
>Date: Thu, 13 Mar 2003 21:46:02 -0300
>
>Gentlemen,
>
>    Even in the Ritchie´s books sometimes I fount .C codes using "wild
>pointers" or something
>like:
>****************
>void main()
>{
>    int *p, a, b;
>
>    a=2;
>    b=3;
>    *p = a + b;
>
>    ...
>}
>****************
>But... in large programs we can have problems.
>
>    Would I be corret, allways, if I use insted a code like:
>*********************
>#include <stdlib.h> /* or alloc.h */
>
>void main()
>{
>    int *p, a, b;
>
>    p=malloc(1*sizeof(int));
>    a=2;
>    b=3;
>    *p = a + b;
>    ...
>    free(p);
>}
>******************
>1. It´s not necessary, but is it tecnically correct?
>2. Is there any point, where the previous memory allocation is mandatory?
>
>Thanks
>Andre
>
>
>
>
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