Re: [avr-gcc-list] Type casting from 32 bit to 64 bit ... doesnt seem to work

[Victor A. Wagner Jr.]

At 21:52 2005-06-11, intiha Ho gai wrote:
> hmm, So any comment as to why it might be happening to me? I am sure
> there is something else that i am missing that affects this, but let
> me give yout the exact code that i use, that is giving me incorrect
> results so that you can help me more.
>
>
> typedef struct regTblEntry {
> int32_t x;
> int32_t  y;
> }TblEntry;
> TblEntry regTable[BEACONS_REQUIRED];
>
> for (i=0; i< BEACONS_REQUIRED; i++){
>
>         sumX +=  regTable[i].X;
>         sumY +=  regTable[i].Y;
>
>         printf( " %ld, %ld, \r\n ", regTable[i].X,regTable[i].Y);
>
>         }
>
>
> At the end when I print the sumX and sumY values, the are incorrect.

we have no information about what the definitions of sumX and sumY are.
so the problem may be simple overflow.
we really need more information to be more help.


> Thanks for all the help.
>
> Regards
> -Affan