Realistically, 3 + + should give a syntax error as it's not a valid
mathematical equation.
Anything generated from this equation is undefined.
I know some calculators use hitting the + button as a trigger to calculate
anything in memory.
Looking at the Windows calculator, it seems to take a number then a operand
as valid syntax to use the previous number as post number.
Thus
'3 +' = 6
'3 -' = 0
'3 *' = 9
Any further operand cancels out the previous.
Thus:
'3 + + + + - - - - * * *' is equivalent to '3 *' = 9
Strange ....
-----Original Message-----
From: Brian [mailto:briandabrain@gmail.com]
Sent: 08 February 2006 23:21
To: ReactOS Development List
Subject: Re: [ros-dev] Bug: The calculator of ROS calculates wrong
just a thought...
shouldn't 3,+,+ in calculator produce 6...
brian
friend of ReactOS
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I have a question:
Where is everyone on the list. I have only received a few mailing
list posts in the past couple of days. I know that there has been a
scandle as of late, but does that stop mailing list posting? What is
the deal?
Is it an error of ROS or an error of WINE?
The Wine-Calculator is every time one too high.
3 + 7 = 11 in the calculator and so on.
But it comes already after the "+" or "*" was pressed.
After [3] + [+] there stands 4 in the display.
Or is it an error of QEmu? I don't know.
Only to mentioned it. I know that you have at the moment no time for it,
because you are in progress of oversearching your code.
Greatings
theuserbl
I think the existence of this mailing list has realy been revealed on
ros-dev before.
Maarten Bosma
Ged Murphy wrote:
> Maarten Bosma wrote:
>
>> Rick Langschultz wrote:
>>
>>> I have a question:
>>>
>>> Where is everyone on the list. I have only received a few mailing
list posts in the past couple of days. I know that there has been a
scandle as of late, but does that stop mailing list posting? What is
the deal?
>>
>>
>>
>> I think I can solve that puzzle. Since that scandal we got a private
mailing list just for developers. ;)
>>
>
> I don't think that was meant to be public knowledge. People will
think we have something to hide now.
>
Ged Murphy wrote:
>> good idea - a paint(brush) clone
>> [..]
>
> Yeah, it's a nice idea. :)
> Certainly worth considering.
I don't think that is what ReactOS needs at it's current state. But
that's just my opinion.
> Other thoughts were taking on the cache manager
I have heard that this is one of the hardest part of ReactOS and also
the cache manager rewrite was already done so far. (However I don't know
how much of it will be left after the audit.)
> Keep em coming guys, I have until next Monday to decide.
Maybe some kind of device driver, or a file system driver (for example
Reiser4) although that is told to be hard too.
Another idea of mine would be a web based job system. I think that one
of the main problems of ReactOS is that we just say: "Here is the
source, you can choose a part to work on. Have fun !".
I know that we got Bugzilla, but you have to admit that it has not
really proven to be a good place for new devs to get started. So a
system, which lists tasks sorted by skills needed, would be a solution.
Later such a system could be used for Bounties as well. But I don't know
if it is a good project for you. Actually I just wanted to write down
the idea before I forget about it again.
> Thanks,
> Ged.
>
Maarten Bosma
As I see in ROS 0.2.9 the font in noteopad looks a lot of different to the
font which Microsoft used in its Notepad.
In Win95/98 Microsoft used for Notepad FixedSys as font. In WinXP it used
LucidaConsole.
But what is with FixedSys? Is it completly new created by Microsoft?
I think no.
Have a look at the PC-system font. I mean the VGA-font which you see, if you
start your computer or which you see, when FreeLoader runs.
The PC-system have three standard fonts. The CGA font have 8x8 pixel. The
EGA-font is a little bit bigger and the VGA-font is 8x16 pixel large. Today
you see nearly only the VGA-fonts.
There existing also some OpenSource programs, which draws this fonts on the
screen: QEmu, DosBox, freeBASIC, etc.
And if you compare this font with the Win95/Win98 fixedsys font, you will
see, that letters like "A" and "O" are completly the same.
And the other letters have mostly only the squiggle, curlicue, flourish or
how it is called erased.
If you erase it on letters like "B", "D", "F", "d" and so on, then the most
majority of the letters looks completly like the fixedsys font of
Win95/Win98.
Only the "0" and some other letters looks then different.
In WinXP the FixedSys font looks now different. I think there it is a
completly new creation by Microsoft. It is also smaller (I think 7x14 or so)
then the old fixedsys font.
But I think, if anybody want to create a fixedsys font for ReactOS, then
using the PC-system-fonts and removing the protruded lines, would be a good
basis for the ReactOS fixedsys font.
The fixedsys font is a little bit unique.
It is not a extern TrueType font. It is integrated in the system.
It is also not a vector-graphic font. It exists only in one size. There
existing no bold or italic version of it. And it will not be antialiased.
And if you remove all fonts of the Windows-System, Windows will use the
fixedsys font insted.
Greatings
theuserbl
Hi!
I am not a programmer. So, it can be possible, that my idea is naive.
You write here in the list, that the best would be, to make clean room
reverse enginering, if an API isn't documented.
But why you not disasseble the apps which you want to run on ROS instead of
disassembling Windows?
I see for it two advancements and one disadvancement.
The advancements:
1. If you make clean room rev. eng., then you cut into halves the number of
developer of ROS.
Then only one half programs for the system. The other half writes documents.
But if you disasseble the apps which running on Windows, then you are still
allowed to publish the documentation of the API it used. You are not allowed
to write then an application like that, what you have disassembled. But that
is nothing you want. You want to write an OS, which can execute this app.
And that is (hopefully) allowed.
I don't know, if I am naive, but I think, if you see, that the program used
a function
void WindowsFunctuion (int, int, float);
then you can write little test apps, with different values, to see what
happens. So you don't need to disasseble Windows to look which happens.
2. If you make a clean room rev. eng. the people who write the document can
make a mistake. Discribes the API wrong or not complete, so that the program
which needs it still not runs.
In this case the people who program, must say to the documenter, that he
must do it again or better. But they can not communicate to much about it.
Not to detailed.
But this problem can be solved if you use the programs/drivers for Windows
to disasseble insted of Windows itself.
The only disadvantage I see is, that it can need more time to understand the
code.
If you "only" disassemble Windows, you comprehend the code in any time.
But if you disassemble an app, it is at first the same. But if you have
written the API for ROS and the app runs on ROS, then you must begin by zero
by disassembling the next app, which don't run on ROS. And you must try to
understand the code of this app and so on. So it can be possible, that this
way takes longer, then clean room rev. eng. Windows direct. But I am not
sure.
Greatings
theuserbl
Ge van Geldorp wrote
> > From: Murphy, Ged (Bolton)
> >
> > James Tabor wrote:
> >
> > > We should have Wine synced into the SVN by now. 8^) What is
> > > missing or not?
> >
> > Gé ;)
>
> :)
> I'm still here. AFAIK, we agreed to transfer the Wine DLLs as late as
> possible.
>
> GvG
Yeah, I recall that being the idea.
I think it's more important to get base libs like CTR, kernel32, user32 and
GDI32 in.
Pretty much nothing will build without those, so the Wine dll's would be
useless anyway.
Ged.
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James Tabor wrote:
> We should have Wine synced into the SVN by now. 8^)
> What is missing or not?
Gé ;)
Hehe
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Aleksey Bragin wrote:
> Hi Pavel,
> currently, only audited SVN server is publically accessible, its URL
> is: svn://svn.reactos.org/audited.
> As for the main svn server, it has been switched off from anonymous
> access, because there were concerns, that it might contain
> copyrighted material. As soon as we clear up the situation,
> it may be
> opened to public access again.
>
> On Feb 8, 2006, at 1:56 PM, Pavel S. Mironchik wrote:
>
> > Hi,
> > I wonder if any anonymous access to reactos svn exists.
> > or could I get login to read svn and track chnages?
For convenience, you can also track changes via the ros-diff mailing list.
Ged.
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