> I found this: http://www.freepascal.org/docs-html/ref/refse91.html but I
think it's not really clear, especially for newbie
Newbies often skip http://www.freepascal.org/docs-html/ref/refli5.html so
they can't read the diagrams used in all later sections.
> Compare that to official document from
On 04/01/2017 02:33 PM, Jürgen Hestermann wrote:
Am 2017-04-01 um 19:42 schrieb wkitt...@windstream.net:
consider this: when using a string var and writing to a binary file...
you reuse the string var for each value written...
if you don't clear the string var between fills then the binary will
Am 2017-04-01 um 19:42 schrieb wkitt...@windstream.net:
> consider this: when using a string var and writing to a binary file...
> you reuse the string var for each value written...
> if you don't clear the string var between fills then the binary will
> contain "garbage" in the unused positions o
On 04/01/2017 07:31 AM, Jürgen Hestermann wrote:
I am wondering what the purpose of filling all
array elements with zero's could be.
If I want to discard all elements I would simply delete
the whole array (setlength(MyArray,0) ).
consider this: when using a string var and writing to a binary fi
>> On Mar 31, 2017, at 5:32 PM, Michael Schnell wrote:
>>
>> Regarding the view of the application (disregarding execution speed) or of
>> the application programmer, there is no difference between real ("Hardware")
>> and virtual (e.g. threads) parallelism. These dirty basics need to be
>>
Am 2017-04-01 um 15:09 schrieb Ryan Joseph:
> Because the array is being iterated and I need to know which values
are set.
> Basically I have a dynamic array I grow to a certain size and this
process happens in a loop.
> The options are to allocate/free the array every cycle or clear
memory and
> On Apr 1, 2017, at 6:31 PM, Jürgen Hestermann
> wrote:
>
> I am wondering what the purpose of filling all
> array elements with zero's could be.
> If I want to discard all elements I would simply delete
> the whole array (setlength(MyArray,0) ).
Because the array is being iterated and I need
Am 01.04.2017 13:31 schrieb "Jürgen Hestermann" :
>
> I am wondering what the purpose of filling all
> array elements with zero's could be.
> If I want to discard all elements I would simply delete
> the whole array (setlength(MyArray,0) ).
>
> But when should it be useful to keep all elements and
I am wondering what the purpose of filling all
array elements with zero's could be.
If I want to discard all elements I would simply delete
the whole array (setlength(MyArray,0) ).
But when should it be useful to keep all elements and
just overwrite them all with zero's (which is also very time c
Am 01.04.2017 10:35 schrieb "Ryan Joseph" :
>
>
> > On Apr 1, 2017, at 2:50 PM, Ryan Joseph
wrote:
> >
> > Yeah, I was concerned with just compiler types or weakly retained
classes where I’m just keeping the reference.
>
> Another question. Is it more efficient/faster to reallocate a new array
of
> On Mar 31, 2017, at 5:32 PM, Michael Schnell wrote:
>
> Regarding the view of the application (disregarding execution speed) or of
> the application programmer, there is no difference between real ("Hardware")
> and virtual (e.g. threads) parallelism. These dirty basics need to be handled
> On Apr 1, 2017, at 2:50 PM, Ryan Joseph wrote:
>
> Yeah, I was concerned with just compiler types or weakly retained classes
> where I’m just keeping the reference.
Another question. Is it more efficient/faster to reallocate a new array of the
same size or call FillChar on the existing arra
> On Apr 1, 2017, at 2:39 PM, Sven Barth via fpc-pascal
> wrote:
>
> It totally depends on the type. In case of primitive types like integers
> there is indeed only the performance difference (though if you know that the
> element size is four FillDWord could be even faster, depending on the
> On Apr 1, 2017, at 2:46 PM, Sven Barth via fpc-pascal
> wrote:
>
> I haven't looked at it in detail, but it could be that both have similar
> efficiency. You could also add "inline" to the MakePoint function which
> should get rid of a potential temporary variable if the compiler doesn't do
On 31.03.2017 10:18, Tony Whyman wrote:
Neither of the above implies multiple CPUs or processing units.
Regarding the view of the application (disregarding execution speed) or
of the application programmer, there is no difference between real
("Hardware") and virtual (e.g. threads) parallelism
On 30.03.2017 18:29, Jon Foster wrote:
I say threading is parallelism, even if just one form of it. The other
methods of parallelism I mentioned here could also be done in FPC with
the appropriate code.
Threading is the way parallelism can be achieved using a "standard"
programming language a
Am 01.04.2017 05:59 schrieb "Ryan Joseph" :
>
> I’ve been using a design pattern in my code which I think is probably
pretty stupid so I’d like to make sure. Assume I have a type like TPoint
below and I want to set the value I’ll doing something like point :=
PointMake(x, y). How does the compiler
Am 01.04.2017 05:42 schrieb "Ryan Joseph" :
>
> As far as the compiler is concerned what’s the difference between
clearing an array using a for-loop vs. FillChar? It seems like iterating
the array would be slower but what does FillChar do exactly and is it
faster? The primary concern here is that t
On Sat, 1 Apr 2017, Mr Bee via fpc-pascal wrote:
Hi all, I'm looking for official reference for function/procedure
parameter list declaration in Pascal. I found
this: http://www.freepascal.org/docs-html/ref/refse91.html but I think
it's not really clear, especially for newbie. For example, w
19 matches
Mail list logo
