word to int64 bug (delphi6)

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2 total messages Started by nmm Thu, 29 Nov 2007 14:20

#170

Author: nmm
Date: Thu, 29 Nov 2007 14:20

29 lines
1589 bytes

Hi,

if you assign "-" of a word-Variable to an int64 one, you get unexpectet results:

var aWord:word;
    ainteger:integer;
    AInt64:int64;
begin
    aWord:=2;
    aInteger:=2;
    AInt64:=-aWord;
    writeln(inttostr(AInt64)); //you get 4294967294 instead of -2

    AInt64:=0-aWord;
    writeln(inttostr(AInt64)); //-2

    AInt64:=-int64(aWord);
    writeln(inttostr(AInt64)); //-2

    AInt64:=-aInteger;
    writeln(inttostr(AInt64)); //-2
end.

I suppose this to be a bug in Delphi 6.

Is this still there in Delphi 2007,2008,...?

Regards
M.Malarski

Re: word to int64 bug (delphi6)

#171

Author: Rudy Velthuis
Date: Tue, 01 Jan 2008 20:42

16 lines
1798 bytes

nmm wrote:

You posted to a group which, on the original server does not exits
anymore. Please be sure to post to the newsgroups.borland.com server,
and not to news.online.de. Hardly anyone will see your post, here (I
only saw it because I was looking for such orphaned groups).

Please post to
news://newsgroups.borland.com/borland.public.delphi.language.delphi.win3
2 instead (careful for the wrap).

-- 
Rudy Velthuis        http://rvelthuis.de

"Imitation is the sincerest form of television."
 -- Fred Allen (1894-1956)

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