That is why I use pchar and one uniquestring;
It prevents all these automated uniquestring calls.
Why call it when it might not be necessary??
My point is that you can make the function MUCH faster for the case
where the function doesn't modify the string by not calling
UniqueString at
This only shows the implementation (and std library design) is bad (and
that's true at least to java 1.4)
I hear this from nearly any language with automated allocation (C#, Python,
Perl, Java). The concept is simple and attractive, the practice seems to
be different.
I'm not a grear fan
yes. In that case we should make TCustomConnection an alias for
TDBDatabase.
If the interfaces are identical I see no problems.
Anyway could you rename TDBDatabase? It's orrible and I overlooked it when I
searched for a TConnection replacement... ;)
Bye Uberto
They are not yet implemented. But NestedDataset and DatasetField are
ONLY for TClientDataset, and we don't support TClientDataset (yet).
Not only, they were first implemented for Oracle object field and they're used
by some other custom implementation, for example InstantObject exposers use
Hi,
I'd like to understand which gdb is better to use for current fpc-cvs, the one
in cvs/install/binw32 or mingw one?
BTW what are the differences?
TIA Uberto
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fpc-devel maillist - fpc-devel@lists.freepascal.org
On Sunday 01 May 2005 21:39, Florian Klaempfl wrote:
Uberto Barbini wrote:
Hi,
I'd like to understand which gdb is better to use for current fpc-cvs,
the one in cvs/install/binw32 or mingw one?
If that one in cvs/install/... makes no trouble for you, use it, it is
tested with fpc. If you
It does not seem right to declare var inst: TMyInterface if you
want inst to have circles and squares as values. I would expect
that you also have a class TFigure, of which TCircle and TSquare
both are descendants. These could also implement TMyInterface.
You then declare var inst: TFigure
Sometimes I added a GetUnderObject() to my interfaces to get the actual
object. But it's a choice up to the interface author.
BTW I needed it to release the object through the interface.
I suspect that if you shouldn't ever need to know the actual class when
using interfaces (maybe apart
http://users.pandora.be/Jan.Van.hijfte/qtforfpc/qtedemo.html
This webpage is about a Qt/Embedded binding for FreePascal (FPC)
The source code of a small demo program is provided as well
wow! I didn't think qt binding worked at all.
mmh, I think I desperately need a Zaurus now! ;))
On Tuesday 05 April 2005 21:13, Florian Klaempfl wrote:
Uberto Barbini wrote:
Does anyone have experience with fpc and linux on handhelds?
http://www.de.freepascal.org/down2-linux-arm.html
More information can be found in the fpc wiki.
Do you mean here:
http://www.freepascal.org/wiki
Did you check the link I gave you above :)? The 1.9.8 arm release is a
cross compiler.
:((
I've read hastly and I understood that was for the arm-linux itself!
I'll try asap.
Uberto
___
fpc-devel maillist - fpc-devel@lists.freepascal.org
But what do you mean with published methods? The published section is
intended only for properties, which should be published in the object
inspector. I guess you mean event methods. Beside event methods,
callback functions and virtual methods could be affected too.
Yes, it means anything
Yes! Exactly my point. But now the useful hints are sunk into tons of
completely useless ones.
Make your own error.msg file and change the hints you don't want to see
into notes or comments.
Are you suggesting this as quick hack or do you find useful those hints?
Are you theorically
This is not a big issue, anyway could we avoid the endless list of such
similar hints compiling Lazarus and our program?
Don't make me wrong, I apreciate the hints of the compiler.
9 times out of 10 if I don't use a parameter in a function or a method there
it is an error of mine.
But in
utf-8 is a unicode string. What do you mean with not escaped
Unicode? Memory wasting utf-32?
I'd see UCS2/UCS4 as not escaped Unicode.
Exactly.
I think that UCS2 will suffice to everyone not interested in Vogon poetry! ;))
This means to have 2 byte chars and related strings, all string
The call to GetSystemMetrics changes the FPU control word from $1372 to
$1272, i.e. the Rounding precision is changed from extended to double.
In the attached patch I set it back to the original value. Now I can build
a new compiler again. :-)
It doesn't work here. I've not swapped the
UCS-2 or UTF-16 how it called by the unicode consortium is escaped as
well and you've to take care of it in your code.
mmh, no.
UCS-2 is different from utf-16 (which is escaped), but you cannot represent
all utf characters (see the case of Vogon poetry).
See:
UCS-2 is different from utf-16 (which is escaped),
nope. UCS originally wasn't escaped, but they changed that recently
Could you point me to a official document?
In the Unicode site I don't find anything.
Anyway with escaping UCS2 when UCS2 definition is utf-16 without encoding?
Bye Uberto
On Thursday 10 March 2005 19:51, Uberto Barbini wrote:
UCS-2 is different from utf-16 (which is escaped),
nope. UCS originally wasn't escaped, but they changed that recently
Could you point me to a official document?
In the Unicode site I don't find anything.
Anyway with escaping UCS2
On Thursday 10 March 2005 19:17, Uberto Barbini wrote:
The call to GetSystemMetrics changes the FPU control word from $1372 to
$1272, i.e. the Rounding precision is changed from extended to double.
In the attached patch I set it back to the original value. Now I can
build a new compiler
What would be the correct solution?
I am showing my ignorance of multi byte characater handling here, but
I think it would be to write an escaped sequence as is currently done
for wide strings. I don't think the current OutChars function is quite
up to it, as utf8 characters can be 32
I also thought immediately what Uberto already said: how do you recognize
a valid/invalid reference without accessing memory that is invalid in the
mean time.
How does a GC do this? It would have the same problem?
A GC dont' try to recognize a valid/invalid reference, it is invoked to
A GC needs to trace an object's references to see if anything still
points to it. How else can it decide whether an object is no longer in use?
Yes, this is right, but it hasn't to decide if reference are valid or invalid.
Moreover also the simpliest GC techniques (mark'n'swift) are quite slow
A more simplictic alternative could be to have objects (declared to be
managed) managed in the same way as ansistrings.
This is exactly what delphi do with interfaces, the result is an orrible mess,
and passing them as parameters a nightmare.
Refcounted objects are possible, python used them
On Sunday 27 February 2005 15:29, Peter Vreman wrote:
Why are you looking at GC/Refcounting when the problem is the try..finally?
It is better to rewrite the try..finally code using the C++ ABI for
exception handling.
+1
and it'd be benefical to all applications.
Bye Uberto
I almost finished the porting of the core part of IO to fpc.
I am *very* interested in seeing this working :)
Nice to know! ;)
I added bugs for the (few) function I had to rewrite or modify passing
from Delphi to fpc.
Anyway I'm still in trouble with streams.
IO use descendants of
You can finalize it, so that it releases all private resources. That's
common practice in a GC environment. But then you are responsible when
the interfaced object is referenced from one of the still remaining
references, and it fails to act properly due to the missing resources.
I wish I
On Tuesday 22 February 2005 08:09, Peter Vreman wrote:
So let's assume I'm a completely idiot and I have downloaded fpc from cvs
to
compile it on a windows system. Do I have any hope to compile it?
Install fpc 1.0.10
Download fpc from cvs
Start cmd.exe
Go to the new fpc directory
Type
On Monday 21 February 2005 21:04, Uberto Barbini wrote:
Where can I find info about compiling fpc from cvs?
I browsed doc and faq but I wasn't able to understand exactly where to
start. BTW today's daily win bin snapshot doesn't run (segmentation fault
in install.exe).
I forgot to mention
On Monday 21 February 2005 21:45, Marco van de Voort wrote:
Where can I find info about compiling fpc from cvs?
http://www.stack.nl/~marcov/buildfaq.pdf
If there ain't a simple way to compile on win then study all these 24 pages, I
think I'll surrender! ;))
Anyway, page 5 you describe the
As you can see there's nothing really serious, I can contribute code if
you tell me.
I hope IO will be useful to fpc and lazarus projects.
I'm sure it will be. Feel free to send patches to me for anything you
think needs fixing.
Ok, now I'll download fpc from cvs and I'll create some
On Tuesday 01 February 2005 10:11, Marco van de Voort wrote:
On Tue, 1 Feb 2005 [EMAIL PROTECTED] wrote:
Classes:
1 - fpc lacks a HexToBin and BinToHex functions. [It has them but only
as private methods of TParser]
These functions are in sysutils or strutils. They have no place in
Hi,
did anyone ever consider to create a FPC plugin for Eclipse?
I'm using Eclipse at work and it's by far the best ide I ever seen,
it's also very easy to enhance it and language neutral, although a
such plugin is not really trivial.
Bye Uberto
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