Timothy Groves schrieb:
Can anyone think of a situation in which you would *have* to use
forward declared functions? I'm trying to come up with an example for
such for my book, and I am drawing a blank.
Well, maybe this one:
---
I'm needing to figure out how socket signaling mechanisms work under darwin.
Windows and Linux work, Darwin however does not support ePoll.
Anyone have any experience with Sockets events under OSX i386?
Thanks.
___
fpc-pascal maillist - fpc-pascal@li
On 12/22/11 5:21 PM, Tony Whyman wrote:
> [explanation snipped] Why do you need a deeper explanation?
He is not asking for an explanation. (I think he knows what it is and
can see why it might be useful.)
He is asking for a compelling example as a use case that illustrates the
need for this langua
You could apply the same logic to the Pascal "label" statement. You can
(and should) always use a different construct and you could therefore
claim that the "label" statement is unnecessary because you cannot think
of a situation where there is no alternative - but it exists. And
sometimes it is c
Am Thursday 22 December 2011 22:04:34 schrieb Anton Shepelev:
>Fward decla-
>rations are necessary to allow mutually recur-
>sive procedures and functions that are not nest-
>ed.
Forward declarations are the only option in special situations:
If your program is huge and you only have this optio
On 11-12-22 04:04 PM, Anton Shepelev wrote:
But are "mutually recursive procedures and functions" necessary?
Not at all. But there is no other reason to use forward-declared
procedures that I can think of, and I need *something* to demonstrate
why you might need them.
On 11-12-22 04:15 PM, Mark Morgan Lloyd wrote:
However, there's probably still a way round that in a unit, by moving
the first mention of one of those into the definition part. Or
similarly you might be able to avoid it by using object definitions.
Absolutely. Because in both of those cases,
Timothy Groves wrote:
Can anyone think of a situation in which you would *have* to use forward
declared functions? I'm trying to come up with an example for such for
my book, and I am drawing a blank.
Classic recursive-descent parser? An expression is a sequence of terms,
a term is a sequenc
Timothy Groves:
> Can anyone think of a situation in which you would
> *have* to use forward declared functions? I'm
> trying to come up with an example for such for my
> book, and I am drawing a blank.
Pascal User Manual and Report says:
Procecure (function) identifiers may be used be
On Thu, 22 Dec 2011 15:33:13 -0500
Timothy Groves wrote:
> Can anyone think of a situation in which you would *have* to use forward
> declared functions? I'm trying to come up with an example for such for
> my book, and I am drawing a blank.
Traverse a html tree. For example with div and p no
Am 22.12.2011 21:37, schrieb Rainer Stratmann:
> procedure fwproc; forward;
>
> procedure myprocedure;
> begin
> fwproc;
> end;
>
> procedure fwproc;
> begin
>
> end;
Bad example, in this case there is no need for implementing fwproc after
myprocedure.
g
Michael
__
Am Thursday 22 December 2011 21:33:13 schrieb Timothy Groves:
> Can anyone think of a situation in which you would *have* to use forward
> declared functions? I'm trying to come up with an example for such for
> my book, and I am drawing a blank.
> ___
>
Can anyone think of a situation in which you would *have* to use forward
declared functions? I'm trying to come up with an example for such for
my book, and I am drawing a blank.
___
fpc-pascal maillist - fpc-pascal@lists.freepascal.org
http://lists
On Thu, Dec 22, 2011 at 4:17 PM, Anton Shepelev wrote:
> Marcos Douglas:
>
>> It's not difficult, but is boring have always a
>> parameter or function return to return an error,
>> and have to verify if error then... if not er-
>> ror... if error and error then... etc
>
> If you mean hav
Marcos Douglas:
> It's not difficult, but is boring have always a
> parameter or function return to return an error,
> and have to verify if error then... if not er-
> ror... if error and error then... etc
If you mean having to write nested IFs to check all
the errors, then there are
On 12/22/11, nore...@z505.com wrote:
> You don't see as much Try Except, it's more Try Finally. People ignore the
> exceptions because it's an accepted thing to do. Then the end user of the
> application gets a strange exception message instead of a user friendly
> one. For example, if a file is
In our previous episode, Juha Manninen said:
> I ran "apt-get install binutils" in the already installed Ubuntu and it
> worked.
> I have understood ARM also supports many instruction sets like Thumb and
> Thumb-2.
> I have no idea which one is running now, but it is not important because it
> work
2011/12/19 Marco van de Voort
> FreeBSD and Linux x86 and x86_64 have internal assembler, but not linker.
> Though the FreeBSD/x86_64 internal assembler is only enable in trunk afaik.
>
> Be careful with binutils on ARM though, there are multiple ABIs, and the
> installed ones must match the devi
On 22 December 2011 16:00, Marco van de Voort wrote:
>
> It worked fine for me in Mozilla, but after I saw your user-agent, I tried
> MSIE (9.0) and while I don't get any error messages, nothing shows.
I can confirm that it works with Opera, Firefox and Chrome browsers.
--
Regards,
- Graem
In our previous episode, Graeme Geldenhuys said:
> > The location of the page changed, and there's an "alternative" link
> > available on the front page of http://www.freepascal.org under "Contributed
> > units".
>
> While we are there. The "Toolbox" sponsor logo on the right. The
> Toolbox Magazi
In our previous episode, dhkblas...@zeelandnet.nl said:
> >
> > The
> location of the page changed, and there's an "alternative" link
> available on the front page of http://www.freepascal.org [2] under
> "Contributed units".
>
> Well, that is exactly the link I'm talking about.
> Clicking on thi
On 22 December 2011 15:40, Jonas Maebe wrote:
>
> The location of the page changed, and there's an "alternative" link
> available on the front page of http://www.freepascal.org under "Contributed
> units".
Something else. The new page looks nice, but you can't select text and
do copy-and-paste? A
On 22 dec '11, Jonas Maebe wrote:
> On 22 Dec 2011, at 14:37,
dhkblas...@zeelandnet.nl [1]wrote:
>
>> The contributed unit section on
the freepascal site does not work anymore. Can someone please have a
look and fix this? Is there an alternative link available?
>
> The
location of the page
On 22 December 2011 15:40, Jonas Maebe wrote:
>
> The location of the page changed, and there's an "alternative" link
> available on the front page of http://www.freepascal.org under "Contributed
> units".
While we are there. The "Toolbox" sponsor logo on the right. The
Toolbox Magazine has been s
On 22 Dec 2011, at 14:37, dhkblas...@zeelandnet.nl wrote:
The contributed unit section on the freepascal site does not work
anymore. Can someone please have a look and fix this? Is there an
alternative link available?
The location of the page changed, and there's an "alternative" link
avail
The contributed unit section on the freepascal site does not work
anymore. Can someone please have a look and fix this? Is there an
alternative link available?
Regards, Darius ___
fpc-pascal maillist - fpc-pascal@lists.freepascal.org
http://lists.
On Thu, Dec 22, 2011 at 11:04 AM, zeljko wrote:
> I would try with it before reinventing wheel, because it works on all X11
> platforms (even on OS/2 and BeOS) and I'm pretty sure that it's installed by
> default.
Interresting, but I don't think it will be necessary ... in rev 34359
I commited su
On 22 December 2011 11:50, Henry Vermaak wrote:
>
> Perhaps you should try powertop.
Thanks for this. I never knew about powertop. I just ran it for a few
minutes. A fpGUI base app in idle rates 6th in the "top causes for
wakeups" on my system - rated at 4% of total processes running. I
have no
On Wed, Dec 21, 2011 at 10:29 PM, wrote:
> Marcos wrote:
>> I use Exceptions to check the integrity of classes. I have one
>> Exception for each class (E), most of the time.
>
>
> Another problem with errors is that sometimes it is hard for a class to
> return errors. In procedural programming yo
On 22 Dec 2011, at 10:39, Graeme Geldenhuys wrote:
On 21 December 2011 18:26, Felipe Monteiro de Carvalho <...> wrote:
I tested with top and it doesn't even show my application in the top
20 users of CPU.
I was just about to mention that, and would have been very surprised
if it did show CPU
On 22 Dec 2011, at 02:27, nore...@z505.com wrote:
Another thing freepascal allows is for OVERLOAD to be declared one
place
but not the other. Delphi is more strict in this regard.
That's fixed in svn trunk.
Also delphi is
more strict when it comes to PROGRAM name parsing. In freepascal th
On Thursday 22 of December 2011 09:43:28 Felipe Monteiro de Carvalho wrote:
> On Thu, Dec 22, 2011 at 9:15 AM, wrote:
> > As I understand it, Delphi and Lazarus implement the former, and don't
> > need a timeout for it.
>
> Ops, you are correct, it is a one shot event:
>
> http://docs.embarcade
On 22/12/11 09:15, Felipe Monteiro de Carvalho wrote:
It is not about select working or not, it is about how many file
descriptors X uses to communicate:
http://fixunix.com/xwindows/91558-xconnectionnumber-select.html#post301681
I don't have time in the foreseeable future to find in which wier
On 21 December 2011 18:26, Felipe Monteiro de Carvalho <...> wrote:
>> just spinning around a loop, so even if your app isn't active, it's still
>> waking up every 50ms. I don't consider this very good programming practice.
>
> I tested with top and it doesn't even show my application in the top
>
On Thu, Dec 22, 2011 at 9:51 AM, wrote:
> Strange statement.
>
> If select() didn't do its job correctly, neither Qt or Gtk could do their
> job, or any network related program, for that matter.
It is not about select working or not, it is about how many file
descriptors X uses to communicate:
On Thu, 22 Dec 2011, Graeme Geldenhuys wrote:
On 22 December 2011 10:15, wrote:
I think it depends on what you mean with 'OnIdle'.
- An event which occurs once when an application falls Idle.
- An event which is triggered repeatedly when the application is idle.
fpGUI's OnIdle event used
On 21 December 2011 16:53, Felipe Monteiro de Carvalho wrote:
> not alone here using FPC, so I shamelessly stole code from fpgui,
The joys of open-source software. :-)
--
Regards,
- Graeme -
___
fpGUI - a cross-platform Free Pascal GUI toolkit
htt
On Thu, 22 Dec 2011, Felipe Monteiro de Carvalho wrote:
On Thu, Dec 22, 2011 at 9:15 AM, wrote:
As I understand it, Delphi and Lazarus implement the former, and don't need
a timeout for it.
Ops, you are correct, it is a one shot event:
http://docs.embarcadero.com/products/rad_studio/delp
On 22 December 2011 10:15, wrote:
>
> I think it depends on what you mean with 'OnIdle'.
> - An event which occurs once when an application falls Idle.
> - An event which is triggered repeatedly when the application is idle.
fpGUI's OnIdle event used to fired only once, when the application
goes
On Thu, Dec 22, 2011 at 9:15 AM, wrote:
> As I understand it, Delphi and Lazarus implement the former, and don't need
> a timeout for it.
Ops, you are correct, it is a one shot event:
http://docs.embarcadero.com/products/rad_studio/delphiAndcpp2009/HelpUpdate2/EN/html/delphivclwin32/Forms_TAppl
On Thu, 22 Dec 2011, Graeme Geldenhuys wrote:
On 21 December 2011 18:06, Henry Vermaak wrote:
embedded devices, laptops have batteries, too. You're wasting CPU and power
just spinning around a loop, so even if your app isn't active, it's still
waking up every 50ms. I don't consider this ver
41 matches
Mail list logo
