> If you want to get better than that, you need to get system specific, I'm
> afraid.
That's not true. As Graeme already mentioned there is EpikTimer which is a
cross-plattform, high-resolution timer (which btw works very well for realtime
tasks).
R.
--
A: Because it messes up the order in w
> The standard clock for the system timer runs at 1,193,182 Hz, derived
> for the original IBM PC as the 4.77 MHz processor clock divided by 4.
Digging a bit deeper clarifies it:
http://sos.enix.org/lxr/source/hwcore/i8254.c?v=6.5
|* Ahhh PC systems are nice toys: this maximum "strange" freque
> On Tue, 01 Jun 2010 19:58:54 +0200
> "Vinzent Höfler" wrote:
>
> > "spir ☣" :
> >
> > > Thank you. Using dos.getTime (including its last arg), the following
> > > returns integer time in 10^-2s units:
> > [...]
> > >
> > > This is the needed base for my uses. (A unit of 1s is too gross for
>
Thank you for this precision. Where does getTime actually get its time? And
where do these numbers come from; I mean why chose this time unit instead of
plain 1/10 or 1/100 or 1/1000s? (1193182 does not look familiar to my eyes ;-)
Do you have an idea on how to get one of those time units (ms wo
> > >> This is not correct. Many strings are simply referenced several
> > >> times.
> > >
> > > May I ask in which typical cases?
In an earlier version of our database (before we had things properly typed)
many
things were stored as strings. Thus a common ansistring may have had a
reference
On Tue, 01 Jun 2010 19:58:54 +0200
"Vinzent Höfler" wrote:
> "spir ☣" :
>
> > Thank you. Using dos.getTime (including its last arg), the following
> > returns integer time in 10^-2s units:
> [...]
> >
> > This is the needed base for my uses. (A unit of 1s is too gross for
> > timing, this leads
CA Gorski escreveu:
And if so, what is to do? Remove the dependencies on lclextensions
from your port?
Yes
Ok, I will try...
Meantime I tried to compile lclextensions against gtk2
What messages do you get when compile lclextensions for carbon?
I ask that so i can add the missing functi
On Tue, 01 Jun 2010 16:30:22 +0100
Martin wrote:
> I don't know all the internals of FPC, but yes to my understanding, your
> quote:
>"parameter passing is just an implicit assignment"
> is absolutely true.
>
> So why do you then say "copy on write" would not apply?
> The assignment creates
"spir ☣" :
> Thank you. Using dos.getTime (including its last arg), the following
> returns integer time in 10^-2s units:
[...]
>
> This is the needed base for my uses. (A unit of 1s is too gross for
> timing, this leads to endless runs; more precision than 10^-2s is
> unneeded.)
Actually, the r
Bee Jay :
[TDateTime]
> What if an app need a precise and correct result, say a rocket launcher?
> :D Is there other alternative solution?
Yes. Use a time type based on a fixed point representation. This eliminates
drift and accuracy issues cause by a floating point representation.
http://stop-
On 01/06/2010 16:13, spir ☣ wrote:
On Tue, 01 Jun 2010 15:00:47 +0100
Martin wrote:
On 01/06/2010 11:23, spir ☣ wrote:
What is the actual benefit of copy-on-write? I ask because of the following
reasoning:
* If a string is just used at several places, for example in output or into
On Tue, 1 Jun 2010 14:36:36 +0200
Jonas Maebe wrote:
>
> On 01 Jun 2010, at 14:28, spir ☣ wrote:
>
> > On Tue, 1 Jun 2010 13:05:16 +0200 (CEST)
> > Michael Van Canneyt wrote:
> >
> >> This is not correct. Many strings are simply referenced several
> >> times.
> >
> > May I ask in which typic
On Tue, 01 Jun 2010 15:00:47 +0100
Martin wrote:
> On 01/06/2010 11:23, spir ☣ wrote:
> > What is the actual benefit of copy-on-write? I ask because of the following
> > reasoning:
> > * If a string is just used at several places, for example in output or into
> > bigger strings, then there is
On 01/06/2010 11:23, spir ☣ wrote:
What is the actual benefit of copy-on-write? I ask because of the following
reasoning:
* If a string is just used at several places, for example in output or into
bigger strings, then there is no reason reason to copy it into a new variable.
* If a programmer
On 01 Jun 2010, at 14:28, spir ☣ wrote:
On Tue, 1 Jun 2010 13:05:16 +0200 (CEST)
Michael Van Canneyt wrote:
This is not correct. Many strings are simply referenced several
times.
May I ask in which typical cases?
The most common one is probably assigning a function result to a
variabl
On Tue, 1 Jun 2010 13:05:16 +0200 (CEST)
Michael Van Canneyt wrote:
[...]
Thank you for all answers (all is now clear for me :-).
> > * If a programmer explicitely assigns an existing string to a new variable,
> > the intent is precisely copy-semantics, to make them independent for
> > furthe
And if so, what is to do? Remove the dependencies on lclextensions
from your port?
Yes
Ok, I will try...
Meantime I tried to compile lclextensions against gtk2
but the compiler still uses includes from include/carbon sub-folder.
Why?
___
On Tue, 1 Jun 2010, spir ☣ wrote:
Hello,
The documentation in the ref manual about PChar may have i bit more details:
http://www.freepascal.org/docs-html/ref/refsu13.html#x36-390003.2.7
Do the following statements hold true?
* This type is mainly intended to interface with C code (or for l
2010/6/1 spir ☣ :
> * Like C strings, and unlike AnsiString-s (even if the latter also are
> "pointed")
Sure if you cast an AnsiString to a PChar it will only go until the
first #0. You can't magically add capabilities to the PChar type.
> * How is length computed (traversal?)?
It isn't compute
Hello,
The documentation in the ref manual about PChar may have i bit more details:
http://www.freepascal.org/docs-html/ref/refsu13.html#x36-390003.2.7
Do the following statements hold true?
* This type is mainly intended to interface with C code (or for low-level
needs?). Else AnsiString shou
Am Sonntag, 30. Mai 2010 20:38 schrieb spir ☣:
> On Sun, 30 May 2010 18:28:47 +0200
>
> Reimar Grabowski wrote:
> > On Sun, 30 May 2010 15:03:03 +0200
> >
> > spir ☣ wrote:
> > > PS: is there a round(fractional_size) function? that's the reason
> > > why i needed power.
> >
> > http://community.f
CA Gorski escreveu:
Lazarus/LCL has added most of the needed functions, but it's not
released yet.
I am using the daily snapshot anyway. Are they in there?
Yes
And if so, what is to do? Remove the dependencies on lclextensions
from your port?
Yes
Luiz
Lazarus/LCL has added most of the needed functions, but it's not
released yet.
I am using the daily snapshot anyway. Are they in there?
And if so, what is to do? Remove the dependencies on lclextensions from
your port?
___
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