Am 04.09.2013 08:18, schrieb Xiangrong Fang:
Hi There,
I try to write a procedure with generic parameters, but failed:
type
generic TArray = array of T;
procedure ProcessArray(arr: TArray);
begin
end;
The compiler said "Generics without specialization cannot be used..."
But if I specializ
Thanks. This is sort-of too verbose when use. I have no comments about
how to define it, but when use it, can we just use:
ProcessArray(someintarray); ?
The complier should be able to "specialize" it implicitly because it knows
someintarray is array of integer?
alternatively, how about thi
Am 04.09.2013 09:13, schrieb Xiangrong Fang:
Thanks. This is sort-of too verbose when use. I have no comments
about how to define it, but when use it, can we just use:
ProcessArray(someintarray); ?
No. Generics are specialized with "", so not using it for
procedures/functions/methods as wel
Hi Sven,
Not to "debate" the syntax, but just ask :-)
1) in my second example: proc_ints: specialize ProcessArray; it is
"specialized". Why this is still not consistent ?
2) in delphi mode, "specialize" is not required anywhere, right? If so,
can you write an example of your new proposal in d
Am 04.09.2013 09:41, schrieb Xiangrong Fang:
Hi Sven,
Not to "debate" the syntax, but just ask :-)
1) in my second example: proc_ints: specialize ProcessArray;
it is "specialized". Why this is still not consistent ?
You declared "proc_ints" as a variable and specialized a procedure. That
is
On Thu, 29 Aug 2013 12:59:52 +0200
Peter Brooks wrote:
> Does anybody know the best support in Pascal for an RDF triplestore?
Me too.
> Is there one written in Pascal?
As far as I know: no.
> I'm interested in Pascal's interprocess communication (IPC), in particular,
> shared memory and sem
I am not an expert of PostGres but maybe you are missing the doubled quotes?
q.Params.ParamByName('id').AsString :=
''71d6776e-1564-11e3-ad65-5349928f15b0'';
Cheers, A.
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Hi there,
I would like to use TVarRec as Variants, after some googling I found this:
http://stackoverflow.com/questions/3733640/how-to-convert-between-tvarrec-and-variant
However, it generated Runtime error 217. My original code (runs OK) is:
1 program test;
2 {$mode objfpc}{$H+}
3 proce
I found the problem myself. You have to add "uses Variants" to eliminate
the problem. So now my questions are:
1) why the Variants unit is required? What does it do?
2) is there any performance penalty using Variant than TVarRec?
Thanks!
2013/9/5 Xiangrong Fang
> Hi there,
>
> I would lik
Am 05.09.2013 06:21 schrieb "Xiangrong Fang" :
>
> I found the problem myself. You have to add "uses Variants" to eliminate
the problem. So now my questions are:
>
> 1) why the Variants unit is required? What does it do?
The Variants unit implements the conversion operators. Normally the unit is
On Wed, 4 Sep 2013, silvioprog wrote:
Hello,
I can't understand how to open a query filtering by a field of type GUID.
The error message is below (translated from BR to US):
TPQConnection: Preparation of query failed. (PostgreSQL: ERROR: operator does
not exist: uuid = text
LINE 3: where t1
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