Hi,
I'm am having problems allocating memory and then populating that
memory with a TFileStream.Read() call. So I thought, maybe my GetMem()
call is incorrect. I then looked at the original code I am porting
from, which had these methods instead. If I get this memory allocation
correct, I'll see i
Hi,
Which of these should I use in new projects? I read somewhere that
GetMem/FreeMem is actually compatibility methods from Turbo Pascal
days, yet I have seen lots of new code that uses it, so I guess it's
still ok to use?
I have various complex structured types and pointers to those types.
Will
No idea ? :-((
--
View this message in context:
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Sent from the Free Pascal - General mailing list archive at Nabble.com.
___
Graeme Geldenhuys schrieb:
> What if I don't pass in a size to
> FreeMem(), will it know how much to free?
Yes (as long as you don't mess with internal heap structures ;)).
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On 15/10/2009, Graeme Geldenhuys wrote:
>
>
> function AllocateMemory( const Size: longint ): pointer;
>
> procedure DeallocateMemory( Var P: pointer );
OK, I managed to convert those two functions to the following.. it now
compiles under my 64bit FPC.
---
On 15/10/2009, Florian Klaempfl wrote:
>
> Yes (as long as you don't mess with internal heap structures ;)).
OK, thanks. So that means I don't need to use the custom
AllocateMemory() and DeallocateMemory() functions - no need to track
the original size of memory allocated.
--
Regards,
- Gr
On Thu, 15 Oct 2009, Graeme Geldenhuys wrote:
On 15/10/2009, Graeme Geldenhuys wrote:
function AllocateMemory( const Size: longint ): pointer;
procedure DeallocateMemory( Var P: pointer );
OK, I managed to convert those two functions to the following.. it now
Graeme Geldenhuys schrieb:
> Hi,
>
> Which of these should I use in new projects? I read somewhere that
> GetMem/FreeMem is actually compatibility methods from Turbo Pascal
> days, yet I have seen lots of new code that uses it, so I guess it's
> still ok to use?
GetMem/FreeMem are lower level tha
2009/10/13 Tom__G :
>
> Hi,
>
> I try to get number of processes attached to a specific shared memory
> segment.
> So I read the shmctl record to retrieve this into shared memory :
>
> type TShmid_ds = record
> shm_perm: TIPC_Perm; Permissions
> shm_segsz: cint; Segment size
> shm_atime: time_t;
Based on the documentation shown here, it doesn't mention what the
return value is. Anybody have a clue?
http://www.freepascal.org/docs-html/rtl/classes/thandlestream.seek.html
--
Regards,
- Graeme -
___
fpGUI - a cross-platform Free Pascal GUI to
> Hi Everybody,
>
> I need video4linux support for my new project. I tried vfp unit
> I found in the contribute units website.
> But it seems very outdated. Itried all things menitioned in the
> forum, but I'm not able to get the things up. the code is hard
> to read and I found not one comment li
Thank you
Changing the mode in the project fixed all problems. System now
compiles correctly.
pd
On 2009-10-13, at 4:14 PM, Jonas Maebe wrote:
Paul Davidson wrote on Tue, 13 Oct 2009:
OS X 10.6.1 FPC 2.2.4 Xcode 3.2 (64 bit)
Using code base that has complied correctly since 2004
Fi
FPC 2.2.4
OS X 10.6.1
Xcode 3.2
All references to MySQL function are unresolved by linker.
libMySQLclient.a is copied to .pas directory. Using FPC test code for
MySQL as template.
Any hints please?
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On Wed, 14 Oct 2009, Graeme Geldenhuys wrote:
Based on the documentation shown here, it doesn't mention what the
return value is. Anybody have a clue?
http://www.freepascal.org/docs-html/rtl/classes/thandlestream.seek.html
The return value should be the new - absolute - position in the stre
Henry Vermaak wrote:
>
> 2009/10/13 Tom__G :
>>
>> Hi,
>>
>> I try to get number of processes attached to a specific shared memory
>> segment.
>> So I read the shmctl record to retrieve this into shared memory :
>>
>> type TShmid_ds = record
>> shm_perm: TIPC_Perm; Permissions
>> shm_segsz: ci
On 15/10/2009, Michael Van Canneyt wrote:
>
> The return value should be the new - absolute - position in the stream.
>
Ah, thanks Michael. Could the documentation be update with this information...?
--
Regards,
- Graeme -
___
fpGUI - a cross-
On 12 Oct 2009, at 17:03, Matthias Klumpp wrote:
On Mon, 12 Oct 2009 12:49:03 +0200, Jonas Maebe >
wrote:
On 11 Oct 2009, at 18:37, Matthias Klumpp wrote:
I decided to use this version of FPC for now. Thank you for your
help!
But now I have problems to compile the compiler:
First I got th
On Thu, 15 Oct 2009, Graeme Geldenhuys wrote:
On 15/10/2009, Michael Van Canneyt wrote:
The return value should be the new - absolute - position in the stream.
Ah, thanks Michael. Could the documentation be update with this information...?
I already have put it in my queue...
Michae
On 15/10/2009, Michael Van Canneyt wrote:
>
> I already have put it in my queue...
:-) Thanks.
--
Regards,
- Graeme -
___
fpGUI - a cross-platform Free Pascal GUI toolkit
http://opensoft.homeip.net/fpgui/
__
On 14 Oct 2009, at 18:14, Paul Davidson wrote:
FPC 2.2.4
OS X 10.6.1
Xcode 3.2
All references to MySQL function are unresolved by linker.
libMySQLclient.a is copied to .pas directory. Using FPC test code
for MySQL as template.
When you use Xcode, you have to use the Xcode way to link
I am translating some Pascal code from MetaWare Professional Pascal to
Free Pascal.
The MetaWare code uses conformant arrays, which are not supported within
Free Pascal. We are thus translating these to use Free Pascal open
arrays.
However, Free Pascal does not allow the "packed" qualifier on the
Hi,
Sorry, I suck at this pointers think. Currently I am reading one
record in correctly and from there is all corrupted data. :-(
Seeing that the first block of data (pEntry^ below) is correct, it
seems my problem is incrementing to the next block of data. Here are
the various variables I am wor
Graeme Geldenhuys wrote:
_pContentsData = a generic Pointer type that points to a block of data
(containing multiples of various structures). XXX bytes of
information.
pEntry = this is a pointer to a specific starting structure type and
will increment in blocks of data to point to the various st
By the way, I am reading in the Table of Contents data for an OS/2 INF file.
Martin wrote:
>>
> if pentry is
> TEntry = record .. end;
> pentry = ^ TEntry
Yes, pEntry is a pointer to a structured type.
pEntry: pTTOCEntryStart;
The actual structure is as follows...
-
Graeme Geldenhuys wrote:
By the way, I am reading in the Table of Contents data for an OS/2 INF file.
// now increment pEntry to point to next data structure
// below, .Length is in bytes
inc( pEntry, pEntry^.Length);
inc(PEntry, 1)
since it increments by the size of the t
Martin wrote:
> Graeme Geldenhuys wrote:
>> By the way, I am reading in the Table of Contents data for an OS/2 INF file.
>>
>>
>>
// now increment pEntry to point to next data structure
// below, .Length is in bytes
inc( pEntry, pEntry^.Length);
>>> inc(P
Added libmysqlclient.a to the project and it gets automatically
included in Tagets/cape96/Link Binary With Libraries. Again same
linker errors: Symbols not found. Also tried libmysqlclient.la. Same
result.
When looking at examples and tests in FPC for MySQL they do not
contain any refe
On 15 Oct 2009, at 16:03, Paul Davidson wrote:
On 2009-10-15, at 7:13 AM, Jonas Maebe wrote:
On 14 Oct 2009, at 18:14, Paul Davidson wrote:
FPC 2.2.4
OS X 10.6.1
Xcode 3.2
All references to MySQL function are unresolved by linker.
libMySQLclient.a is copied to .pas directory. Using FP
On 15 Oct 2009, at 14:49, Bruce Bauman wrote:
[packed for open array parameters]
Is there a reason why "packed" is not allowed in this context?
I think it's simply because I forgot to add it when adding support for
packed arrays. Please file a bug report.
Jonas
__
Thanks. Will do.
-Original Message-
From: fpc-pascal-boun...@lists.freepascal.org
[mailto:fpc-pascal-boun...@lists.freepascal.org] On Behalf Of Jonas
Maebe
Sent: Thursday, October 15, 2009 10:28 AM
To: FPC-Pascal users discussions
Subject: Re: [fpc-pascal] open arrays as parameters (why pa
Here is the head of the unit:
{
cMySQL.pas
cape61
Created by Paul Davidson on 2005/01/18.
Copyright (c) 2005 Corax Networks.Inc.. All rights reserved.
}
unit cMySQL;
{$I Directives.inc}
interface
{$linklib libmysqlclient.a}
uses
cBase,
cKey,
cStack,
mysql4;
Hi everyone,
is a complete grammar for fpc written in some variant of BNF available
somewhere?
I searched the website and the wiki, to no avail.
TIA,
Marc
--
Marc Santhoff
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Graeme Geldenhuys :
> Now I know why vendors of newer languages (Dephi, Java etc) are trying
> to hide pointers from programmers. They are very tricky to work with -
> and give errors without warning!
Especially when compiler and programmer are both trying to outsmart each other.
:D
Vinzent.
-
Hmm, currently I am also learning Oberon.
No any language requires an IDE. I use vim. Others might use emacs.
These are enough. What we need is a simple editor (if you like, GNU
nano or simply "cat > 1.pas" is okay) and a compiler. They can make
the world, although not that efficiently.
Not the b
> is a complete grammar for fpc written in some variant of BNF available
> somewhere?
>
> I searched the website and the wiki, to no avail.
AFAIK, there's none. The developers adding language features by directly
modifying the code. Even there's a bounty for it. See:
http://wiki.lazarus.freepasc
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