Re: [Lazarus] Bug in FPC 3.0 discovered

[Edson F. Lidorio]

On 11-03-2016 09:57, LacaK wrote:

Hello,
this is notification for users, who plan upgrade to latest Lazarus 1.6 
with FPC 3.0 from older versions which came with FPC 2.6.x


There was discovered bug in FPC 3.0 (already fixed in trunk) when 
currency and double data types are involved in mathematical operations 
like addition or multiplication.

Bug can be reproduced using simple example:

var
 c: currency;
 d: double;
begin
  c:=123.45;
  d:=100;
  writeln(c*d);  // wrong result 12345 instead of 12345
end.

Bug does not affects all platforms . For example Win32, Linux64 are 
not affected. But Win64 IS affected.


This bug can cause unpredictable misbehavior.
For example in database applications using fcl-db/sqlDB and NUMERIC or 
DECIMAL data types as described in bug report #29760


-Laco.

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I think this error, also related to this issue which reported in [1]

http://bugs.freepascal.org/view.php?id=29781

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Re: [Lazarus] Desktops ?

[Michael Van Canneyt]

On Fri, 11 Mar 2016, Ondrej Pokorny wrote:

The OI gets correctly hidden if you load the desktop after the start of the 
IDE. So the problem is in IDE startup procedure that forces the OI to show.


I can confirm this behaviour, yes.

Michael.

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Re: [Lazarus] Desktops ?

[Ondrej Pokorny]

The OI gets correctly hidden if you load the desktop after the start of 
the IDE. So the problem is in IDE startup procedure that forces the OI 
to show.


Ondrej

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Re: [Lazarus] Desktops ?

[Ondrej Pokorny]

On 11.03.2016 14:18, Michael Van Canneyt wrote:
Is the current desktops functionality supposed to restore windows that 
were hidden ?


No.



I have 1 desktop defined, "Default".
I layouted my windows, closed the object inspector window, and used 
'Save current desktop' to save it as default.
I quit lazarus and restarted it. It shows a default empty project, and 
shows the object inspector.

I loaded a (non-gui) project.
The object inspector is still shown.

Is this supposed to be so ? I would expect the object inspector to 
remain hidden.


Me as well.



My plan was to have 2 desktops: one for GUI projects, one for non-GUI
projects, where the object inspector is useless and hence can remain
hidden...


I assume the OI is especially forced to be shown at the start to get the 
default desktop after first run of the IDE (where the OI is visible). 
This should be changed and the OI should be shown only when no 
configuration is present.


Ondrej

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[Lazarus] ZMSQL...

[Liyuan García Caballero]

Hello team!

I can't install ZMSQL. I use Lazarus 1.6 and FPC 3.0.0. This is the error:

zmquerydataset.pas(120,22) Fatal: no puedo encontrar LResources 
utilizado por ZMQueryDataSet. Comprueba si el paquete LCLBase se 
encuentra en las dependencias de paquete zmsql.


Thank's



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Re: [Lazarus] Bug in FPC 3.0 discovered

[Michael Van Canneyt]

On Fri, 11 Mar 2016, Mattias Gaertner wrote:


On Fri, 11 Mar 2016 14:12:41 +0100 (CET)
Michael Van Canneyt  wrote:




On Fri, 11 Mar 2016, Mattias Gaertner wrote:


On Fri, 11 Mar 2016 13:57:02 +0100
LacaK  wrote:


[...]
There was discovered bug in FPC 3.0 (already fixed in trunk) when
currency and double data types are involved in mathematical operations
like addition or multiplication.


Is this bug http://bugs.freepascal.org/view.php?id=29760 ?


Yes.


Is it already fixed in 3.0.1 and 3.1.1?


3.1.1, yes.

3.0.1, I don't think so.

IMHO we should release a 3.0.2 ASAP.

Michael.

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Re: [Lazarus] Bug in FPC 3.0 discovered

[Mattias Gaertner]

On Fri, 11 Mar 2016 14:12:41 +0100 (CET)
Michael Van Canneyt  wrote:

> 
> 
> On Fri, 11 Mar 2016, Mattias Gaertner wrote:
> 
> > On Fri, 11 Mar 2016 13:57:02 +0100
> > LacaK  wrote:
> >
> >> [...]
> >> There was discovered bug in FPC 3.0 (already fixed in trunk) when
> >> currency and double data types are involved in mathematical operations
> >> like addition or multiplication.
> >
> > Is this bug http://bugs.freepascal.org/view.php?id=29760 ?
> 
> Yes.

Is it already fixed in 3.0.1 and 3.1.1?

Mattias

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[Lazarus] Desktops ?

[Michael Van Canneyt]

Hi,

Is the current desktops functionality supposed to restore windows that were 
hidden ?

I have 1 desktop defined, "Default".
I layouted my windows, closed the object inspector window, and used 'Save 
current desktop' to save it as default.
I quit lazarus and restarted it. 
It shows a default empty project, and shows the object inspector.

I loaded a (non-gui) project.
The object inspector is still shown.

Is this supposed to be so ? I would expect the object inspector to remain
hidden.

My plan was to have 2 desktops: one for GUI projects, one for non-GUI
projects, where the object inspector is useless and hence can remain
hidden...

Michael.

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Re: [Lazarus] Bug in FPC 3.0 discovered

[Mark Morgan Lloyd]

LacaK wrote:

Hello,
this is notification for users, who plan upgrade to latest Lazarus 1.6 
with FPC 3.0 from older versions which came with FPC 2.6.x


There was discovered bug in FPC 3.0 (already fixed in trunk) when 
currency and double data types are involved in mathematical operations 
like addition or multiplication.

Bug can be reproduced using simple example:

var
 c: currency;
 d: double;
begin
  c:=123.45;
  d:=100;
  writeln(c*d);  // wrong result 12345 instead of 12345
end.

Bug does not affects all platforms . For example Win32, Linux64 are not 
affected. But Win64 IS affected.


This bug can cause unpredictable misbehavior.
For example in database applications using fcl-db/sqlDB and NUMERIC or 
DECIMAL data types as described in bug report #29760


Nota bene (Koenraad, Bo): *Does* affect Raspberry Pi.

--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]

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Re: [Lazarus] Bug in FPC 3.0 discovered

[Michael Van Canneyt]

On Fri, 11 Mar 2016, Mattias Gaertner wrote:


On Fri, 11 Mar 2016 13:57:02 +0100
LacaK  wrote:


[...]
There was discovered bug in FPC 3.0 (already fixed in trunk) when
currency and double data types are involved in mathematical operations
like addition or multiplication.


Is this bug http://bugs.freepascal.org/view.php?id=29760 ?


Yes.

Michael.

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Re: [Lazarus] Bug in FPC 3.0 discovered

[Mattias Gaertner]

On Fri, 11 Mar 2016 13:57:02 +0100
LacaK  wrote:

>[...]
> There was discovered bug in FPC 3.0 (already fixed in trunk) when 
> currency and double data types are involved in mathematical operations 
> like addition or multiplication.

Is this bug http://bugs.freepascal.org/view.php?id=29760 ?

Mattias

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[Lazarus] Bug in FPC 3.0 discovered

[LacaK]

Hello,
this is notification for users, who plan upgrade to latest Lazarus 1.6 
with FPC 3.0 from older versions which came with FPC 2.6.x


There was discovered bug in FPC 3.0 (already fixed in trunk) when 
currency and double data types are involved in mathematical operations 
like addition or multiplication.

Bug can be reproduced using simple example:

var
 c: currency;
 d: double;
begin
  c:=123.45;
  d:=100;
  writeln(c*d);  // wrong result 12345 instead of 12345
end.

Bug does not affects all platforms . For example Win32, Linux64 are not 
affected. But Win64 IS affected.


This bug can cause unpredictable misbehavior.
For example in database applications using fcl-db/sqlDB and NUMERIC or 
DECIMAL data types as described in bug report #29760


-Laco.

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