🚀 go-pugleaf

On Monday 27 N. Damodharan wrote:
> 
> Hi,
> 
> When I compile the following code in cc and gcc
> 
> -----------------------------------------------
> main ()
> {
>         static int a[] = {97,98,99,100,101,102,103,104};
>         int *ptr = a ;
> 
>         printf("%d %d %d %d %d %d %d %d\n",*(++ptr), *(ptr--),*(ptr), *(ptr++), *(ptr++), *(ptr),*(++ptr),*(ptr));
> 
>         ptr = a ;
>         print(++ptr, ptr--,ptr, ptr++, ptr++, ptr,++ptr,ptr);
> }
> 
> print (a,b,c,d,e,f,g,h)
> int *a,*b,*c,*d,*e,*f,*g,*h;
> {
>                 printf("%d %d %d %d %d %d %d %d",*a, *b, *c,*d,*e,*f,*g,*h);
> }
> 
> ------------------------------------------
> 
> in GCC I get the following output...
> 98 98 97 97 98 99 100 100
> 98 98 100 97 98 99 100 100
> 
> in cc I get the following output...
> 98 98 97 97 98 99 100 100
> 98 98 97 97 98 99 100 100
> 
> Looking at the semantics of the program I feel that CC
> results are correct while that of GCC are wrong. I feel this
> has some thing to do with the way parameter passed to a
> function are parsed...
> 
> Can you please lookinto this an send me reasons for the
> same..
> 
> Also can you let me know how the function parameters are
> parsed in GCC..
> 
> Regards,
>  Dams.
> -----------------------------------------------------
> After the game both the King and the Pawn go into the same box.
> -----------------------------------------------------

What gcc version are you using?
With gcc-2.5.8 under SunOS 5.5 I get the following output:
98 98 97 97 98 99 100 100
98 98 100 97 98 100 100 100

When you say cc are you meaning Sun CC compiler? With Sun CC 4.0 under
the same operative system I get the following surprising results:
100 97 100 -268437948 97 100 100 100
100 97 100 -268437948 97 100 100 100

Victor Sunye (sunye@eel.upc.es)