Thanks Felipe.
- Original Message
From: Felipe Monteiro de Carvalho felipemonteiro.carva...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Thu, December 23, 2010 5:00:04 AM
Subject: Re: [fpc-pascal] A cross-architecture Integer type for 32-bit and
Is there a data typein FPC which is compiled as Cardinal in 32-bit, but
compiled
as UInt64 in 64-bit?
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stdcall calling convention is for Win32, right? E.g.
function Test: HRESULT; {$IFDEF WIN32}stdcall;{$ENDIF}
By using $IFDEF like that, will the code also work in Win64?
Thanks in advance.
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Thanks Florian. :-)
- Original Message
From: Florian Klämpfl flor...@freepascal.org
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Tue, September 7, 2010 2:01:31 AM
Subject: Re: [fpc-pascal] stdcall on win64?
Am 06.09.2010 18:27, schrieb Bihar Anwar:
stdcall
After my previous post, TreeView and Nonrecursion, I'd tried to ask the same
topics in stackoverflow.com
(http://stackoverflow.com/questions/3630047/treeview-control-and-nonrecursion)
and I got something new.
It is possible to recurse without using up the stack space. Optimizing
compilers
September 3, 2010 7:17:57 PM, José Mejuto wrote:
That kind of optimization to me only seems interesting in
two possible situations, when calling functions is high
costly or when there is a very limited stack amount (really,
really small). From my point of view if you need more that
1MB of
O Marco, I love you :-)
- Original Message
From: Marco van de Voort mar...@stack.nl
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Fri, September 3, 2010 11:02:52 PM
Subject: Re: [fpc-pascal] Recursion optimization by compiler
Second, does FPC understand tail
On September 2, 2010 5:14:50 PM, Juha Manninen wrote:
If your input data contains a string which always
identifies the parent node then you can map the
string - parent node and find it later for adding
a child node.
Pseudo code again:
...
...
If you don't have such ID then you must
A Newbie question :-) Is it possible to fill TreeView (tree is naturally
recursive) with a nonrecursive/iterative thinking paradigm? Are there some good
examples regarding this matter in the Internet?
I post this question in FPC mailing list because my question actually about
filling a tree in
On 2 September 2010 3:53:34 AM, Vannus wrote:
i probably shouldn't open my mouth, as i don't quite understand the
question...
however FRED from the game Freespace let you design missions using a
treeview.
Just to make my question clear, for example, I can fill a TreeView control with
Thanks Graeme, please keep inform us about anything special to FPC/Lazarus
users. :-)
- Original Message
From: Graeme Geldenhuys graemeg.li...@gmail.com
To: Other FPC related discussions. fpc-ot...@lists.freepascal.org; Lazarus
mailing list laza...@lists.lazarus.freepascal.org;
On June
10, 2010 1:00:27 PM, Tomas Hajny wrote:
... or whether it should return the last OS error for what OS function
invoked recently (also directly without using RTL).
Yes, I think this one is agreed with other similar RTL functions.
On June
10, 2010 1:46:39 PM, Tomas Hajny wrote:
If I remember correctly, it's been done in order to differentiate standard
error
codes (supposedly cross-platform and mostly inherited from TP/BP)
from all other error codes which may be
triggered there and which are
completely platform specific.
June
10, 2010 3:03:45 PM, Jonas Maebe wrote:
MacOS in the RTL stands for System 7.5 - Mac OS 9.2.x, i.e., the classic
Mac OS which
preceded Mac OS X. I don't think the sysutils unit was ever completely ported
for that
platform.
Thanks Jonas, your clarification strengthens my thought
On June 10, 2010 6:12:42 PM, Tomas Hajny wrote:
OK, this is a slightly different story then. Win32 API function FindFirst
(and thus also the Delphi function FindFirst provided in SysUtils) returns
the search handle (positive value) in case of a success and -1 in case
of an error. The
I look at the FPC RTL source codes and notice that in some OSes (e.g. OS/2,
DOS) every RTL functions which call OS API functions will return the OS error
code as a negative number. What is the reason behind this? I don't find such a
convention in the official documentation of thouse OSes.
I don't see SysUtils.GetLastOSError() in DOS. Looking at a glance, I think it
will be a trivial effort by just returning Dos.DosError variable content.
Also, I notice that SysUtils.GetLastOSError() in MacOS is defined but it's
implementation is empty. I've no knowledge on MacOS, so my question
OK guys, after contemplating all your suggestions, I decide to follow the
SynEdit way, that is, synregexpr unit. I suppose this unit tends to get more
maintenance in the future.
Concerning the C++ PCRE library, it is the most full-featured reg-expr
implementation, but calling C++ functions
Schindler Karl-Michael wrote on June 6, 2010 1:09:02 AM:
The pcre library (written in C) has a good reputation. You can get
pascal headers from the Project JEDI Code Library (JCL).
Wow, that seems a more promising approach in the current time, I'll look on it.
Thanks so much.
BTW, which
Tomas Hajny on May 17, 2010 5:43:07 PM wrote:
However, I don't think that anyone tried it with anything older than
MS-DOS 5.0 recently.
So, the safe assumption is fpc-compiled programs should run smoothly in
at least MS-DOS 5.0. Thanks for the info.
If you really need to use an even older
I've tried googling and searching FPC mailing list for information about this
one, but I found nothing.
I just found in http://www.delorie.com/djgpp/v2faq/faq3_1.html that DJGPP
requires MS-DOS version 3.1 or later.
Would someone here tell me exactly about lowest MS-DOS version supported by
Vinzent Höfler on May 16, 2010 3:48:25 AM wrote:
I've tried googling and searching FPC mailing list for information about
this one, but I found nothing.
I just found in http://www.delorie.com/djgpp/v2faq/faq3_1.html that
DJGPP requires MS-DOS version 3.1 or later.
Would someone here
Jonas Maebe on May 12, 2010 2:32:18 PM
On 12 May 2010, at 05:53, Bihar Anwar wrote:
As the title says. :-)
No, it doesn't.
Any reason for that? or it is not implemented yet?
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http
leledumbo onMay 12, 2010 3:58:09 PM
Any reason for that? or it is not implemented yet?
For the first one, usually errors in FPCgenerate exception, you can handle
that instead.
Yes, as you said usually, it is not always. For example, FindFirst() and
FindNext return OS dependent error code.
As the title says. :-)
I mean
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I mean, for example, are there something like:
- fpcError_ERROR_PATH_NOT_FOUND = ESysENOENT in UNIX
fpcError_ERROR_PATH_NOT_FOUND = ERROR_PATH_NOT_FOUND in Windows
- fpcERROR_FILENAME_EXCED_RANGE = ESysENAMETOOLONG in UNIX
fpcERROR_FILENAME_EXCED_RANGE = ERROR_FILENAME_EXCED_RANGE
Something like this one:
https://libxpl.arsoft.homeip.net/browser/trunk/errormap/xplErrorMap.cpp?rev=70
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If I remember this correctly, I've formerly ever read somewhere (in my Delphi
days) that array should be declared globally (not inside a function or
procedure) so that access to the array will be faster. Is this correct? If yes,
does this also true in FPC?
Thanks in advance.
Thanks Jose, Werner, and Jonas for the fantastic discussion and explanation.
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From: Aleksa Todorovic on May 5, 2010 3:13:12 PM
As of copying/moving array elements, why don't you use
simple for loop
for that?
Because of performance optimization. TStringlist.Delete() and
TStringlist.InsertItem() itself uses Move() instead of such loop.
Florian Klaempfl:
FPC and Delphi handle code generation for ref. counted types slightly
different, so there might be cases where the ref. counter differs. As
long as
there is no memory leak when the vars are properly used, we
don't
consider it as a bug.
I see, well, there should be
Jürgen Hestermann wrote:
Although I would have expected that special procedures exist to insert
and remove array elements so that there is no need to do such things
manually ...
David Emerson wrote:
These must be written on a case-by-case basis, for each type of array element.
Perhaps I'll
On May 2, 2010 4:24:37 PM, Jonas Maebe wrote:
The reference counting logic is considered to be an opaque implementation
detail (whose implementation can change at any time). It is undocumented by
design.
In fact, it was already documented in detail in FPC Language Reference Guide:
3.2.4
From: Jonas Maebe, May 2, 2010 7:05:46 PM
And the last one explicitly states No assumptions should be made about the
number of temporary variables or the time when they are finalized.
I see, thanks Jonas for noting that statements.
I know, we've had bug reports about that in the past. Such
I found that the last element of a dynamic array starts with reference count =
2 in FPC, but in Delphi is 1. Is this an FPC bug, or FPC implements reference
counting differ from Delphi?
type
PAnsiRec = ^TAnsiRec;
TAnsiRec = packed Record
Ref,
Len : SizeInt;
First : Char;
:42, Bihar Anwar wrote:
By the way, how do I call internal compiler functions directly (maybe using a
tricky way) such as system.fpc_ansistr_incr_ref() and
system.fpc_ansistr_decr_ref?
I couldn't call those kind of functions from my program, I guest it is caused
by compilerproc
boyarintsev skalogryz.li...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Fri, April 30, 2010 3:22:22 PM
Subject: Re: [fpc-pascal] Is there a StringRefCount() equivalence?
On Fri, Apr 30, 2010 at 7:42 AM, Bihar Anwar bihar_an...@rocketmail.com wrote:
I hope FPC
Delphi has StringRefCount() function (I'm not aware since what version it was
introduced). I just curious, is there a function equivalent to it in FPC?
Currently, I just steal a portion of code from System unit:
type
PAnsiRec = ^TAnsiRec;
TAnsiRec = packed record
Ref,
Len :
] Is there a StringRefCount() equivalence?
On Thu, 2010-04-29 at 10:30 -0700, Bihar Anwar wrote:
Delphi has StringRefCount() function (I'm not aware since what version it was
introduced). I just curious, is there a function equivalent to it in FPC?
Currently, I just steal a portion of code from
Thank you very much Henry, David, and Vincent. I think, I must go back to the
basic of reference counting. Special thanks to David for the detail explanation.
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Just say, I have a dynamic array with size=5, and I want to delete elements
from the index 0 to 2. Is there a trick (the fastest way) to delete those
elements (0 to 2) without moving activities?
I've tried to make the dynamic array just pointing to 3rd element and set a new
length for it, but
- Original Message
From: Henry Vermaak henry.verm...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Tue, April 27, 2010 10:19:45 PM
I think the right way to do this is:
a := copy(a, 3, length(a) - 3);
Presumably copy optimizes this adequately.
Henry
...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Wed, April 28, 2010 4:12:26 AM
Subject: Re: [fpc-pascal] Question about Deleting elements in Dynamic Array
On 27 April 2010 18:34, Bihar Anwar bihar_an...@rocketmail.com wrote:
Would Move() be faster, instead of Copy()?
I
, Bihar Anwar bihar_an...@rocketmail.com wrote:
Ok, I'll try to observe the compiled code using debugger and benchmark it if
needed. BTW, what do you mean by allocating memory directly? Is there another
way to allocate memory for dynamic array besides using SetLength()?
Copy() (from the existing
In Windows XP and upper, traversing directories starting from root directory
(e.g. D:\) using FindFirst() and FindNext() will fail (ERROR_ACCESS_DENIED)
when iteration encounters System Volume Information directory. I solved this
by ignoring this error code and keep looping. However, I don't
Thanks Bart, forget my silly comments before, you did it cleverly.
- Original Message
From: Bart bartjun...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Thu, April 15, 2010 10:02:33 PM
Subject: Re: [fpc-pascal] Initializing a record-type variable to
Thank you very much Jose, that's a detail explanation. Forget my wrong
observation before.
- Original Message
From: José Mejuto joshy...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Thu, April 15, 2010 10:11:03 PM
Subject: Re[2]: [fpc-pascal]
I still need compiler hint generated by FPC at compiling (I don't want to turn
it off), but the hint sometime disturbs me because it's a false-postive
detection.
Supposing I have a record-type variable, could someone here tell me how to
initialize it properly so that FPC could notice the
Thanks for your reply José, but what is the philosophy behind the solution? and
What are the reasons for $PUSH and $POP? Also, I tried to remove the $HINTS
directive, and it worked fine without it. Could you explain this?
- Original Message
From: José Mejuto joshy...@gmail.com
Thanks very much Bart, Thomas, and Graeme, they're precious information. I even
didn't notice about the built-in feature within FPC and Lazarus IDE.
Thanks again.
- Original Message
From: Graeme Geldenhuys graemeg.li...@gmail.com
To: FPC-Pascal users discussions
Thanks Bart, I will try it.
- Original Message
From: Bart bartjun...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Sun, April 11, 2010 4:51:54 PM
Subject: Re: [fpc-pascal] (no subject)
Simply define the compiler directive NOFORMSPLEASE when compiling
Yes it works, but the {$DEFINE NOFORMSPLEASE} clause must be put in the unit
itself. If I put the clause in the first line of my console project, the unit
won't catch it.
How can I define a compiler directive that can be understood by all units in my
project?
Anyway, thanks.
- Original
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