> Le 2 juin 2017 à 23:41, Garri Ogata via 4D_Tech <4d_tech@lists.4d.com> a
> écrit :
>
> Greetings,
>
> Using Get pointer is another way of doing as well.
Don't be confident in this, it fails in at least 2 situations:
• compiled if the array is local
• in a host/component context if the varia
Tim:
Auto correct? Ah, OK, I'll give you that one. :-)
--
Douglas von Roeder
949-336-2902
On Fri, Jun 2, 2017 at 3:40 PM, Tim Nevels via 4D_Tech <4d_tech@lists.4d.com
> wrote:
> On Jun 2, 2017, at 5:24 PM,Douglas von Roeder wrote:
>
> > On Fri, Jun 2, 2017 at 12:20 PM, Tim Nevels via 4D_Tech
On Jun 2, 2017, at 5:24 PM,Douglas von Roeder wrote:
> On Fri, Jun 2, 2017 at 12:20 PM, Tim Nevels via 4D_Tech <
> 4d_tech@lists.4d.com> wrote:
>
>> quest to master a nuisance of the 4D language regarding pointers.
>
> "nuisance" (S/B "nuance")
>
> Careful, there - that floor is slippery, Dr.
; on behalf of Chip Scheide via
4D_Tech <4d_tech@lists.4d.com>
Sent: Friday, June 2, 2017 7:55 PM
To: 4D iNug Technical
Cc: Chip Scheide; Tim Nevels
Subject: Re: syntax : pointer to an element of a sub-array of 2D array
I understand your thinking :)
but...
as this is going to be in a (
> Le 2 juin 2017 à 20:56, Chip Scheide via 4D_Tech <4d_tech@lists.4d.com> a
> écrit :
>
> [...]
> Table and Field numbers
> Table and Field pointers
Just a suggestion, a "combo" makes possible to code fields in a single longint
in place of pointers or pair of numbers table+field. Nice to put a
On Fri, Jun 2, 2017 at 12:20 PM, Tim Nevels via 4D_Tech <
4d_tech@lists.4d.com> wrote:
> quest to master a nuisance of the 4D language regarding pointers.
"nuisance" (S/B "nuance")
Careful, there - that floor is slippery, Dr. Freud! ;-)
--
Douglas von Roeder
949-336-2902
***
I understand your thinking :)
but...
as this is going to be in a (compiled - I hope) component, I need to
validate the hell out of the parameters, ESPECIALLY, pointers; as
conceptually the component will be a black box.
Input (via method call) -> component -> result
actually the problems of
On Jun 2, 2017, at 2:00 PM,Chip Scheide wrote:
> Maybe I am too ambitious...
>
> (from Host)
>
> Build_Table_Arrays(->$Table_Names_array;->$Table_num_array;->$Table_Pointer_array)
> This call would build 1D arrays with the (respectively) table names
> (formatted for users), Table numbers, and p
Yep :)
I am not sure... Does this work in newer versions of 4D, or is this
something that should be entered as a bug?
Array text(My_2D-Array;5;10)
c_pointer($ptr;$ptr2)
$ptr:=->My_2D_Array
$ptr2:=->$ptr->{1} // <- this fails : Field variable or table expected
$ptr2:=->($ptr->{1}) // this fails
sometimes its much easier to simply COPY ARRAY the whole array and back.
> 2017/06/02 22:46、Chip Scheide via 4D_Tech <4d_tech@lists.4d.com> のメール：
>
> And this is where the dereferencing a pointer to a 2D array, sub-array
> access problem is occurring, inside the component method and it's
> interna
Everyone who has replied so far.
Thanks
I am still struggling with this, but I am now closer, and have some
direction, I'll report back my final solution.
The actual implementation I am working on is :
In a component, a method which can build 1 or more arrays of table and
field information from
> Le 1 juin 2017 à 22:10, Chip Scheide via 4D_Tech <4d_tech@lists.4d.com> a
> écrit :
>
> I have a pointer to a 2D array
> Array text($My_Array;5;10)
> $ptr:=->$My_Array
> [...]
> The above syntax does not seem to work, can someone help with syntax?
Turnarounds I could find (execute formula, Ge
It almost seems like you are doing the inverse of what is described here:
http://kb.4d.com/assetid=48814
Try this:
C_POINTER($ptr)
ARRAY TEXT($My_Array;5;10)
$ptr:=->$My_Array{1}
My_Method ($ptr)
-Tim
**
4D Internet Users Gro
I have a pointer to a 2D array
Array text($My_Array;5;10)
$ptr:=->$My_Array
I know that $ptr->{2} will reference the sub-array (of 10 elements) at
element 2.
I need to provide a pointer to this sub-array
ex:
My_Method(->($ptr->{1}))
The above syntax does not seem to work, can someone help with
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