is this the correct way to set a dynamic 2D array?

int[][] dynamic;

dynamic.length = width;

for (int i = 0; i < dynamic.length; i++)
   dynamic[i].length = height;

Just seems a bit weird.

On Tue, 31 May 2005 03:56:00 +0000, clayasaurus wrote:

> is this the correct way to set a dynamic 2D array?
> 
> int[][] dynamic;
> 
> dynamic.length = width;
> 
> for (int i = 0; i < dynamic.length; i++)
>     dynamic[i].length = height;
> 
> Just seems a bit weird.

Currently, yes. Though it could also be written as ...

 int[][] dynamic;

 dynamic.length = width;

 foreach (inout int[] x; dynamic)
     x.length = height;


-- 
Derek
Melbourne, Australia
31/05/2005 2:33:02 PM

Derek Parnell wrote:
> On Tue, 31 May 2005 03:56:00 +0000, clayasaurus wrote:
> 
> 
>>is this the correct way to set a dynamic 2D array?
>>
>>int[][] dynamic;
>>
>>dynamic.length = width;
>>
>>for (int i = 0; i < dynamic.length; i++)
>>    dynamic[i].length = height;
>>
>>Just seems a bit weird.
> 
> 
> Currently, yes. Though it could also be written as ...
> 
>  int[][] dynamic;
>   dynamic.length = width;
>   foreach (inout int[] x; dynamic)
>      x.length = height;
> 
> 

can't you just say this?
dynamic[].length = height;

On Tue, 31 May 2005 00:31:47 -0600, Hasan Aljudy wrote:

> Derek Parnell wrote:
>> On Tue, 31 May 2005 03:56:00 +0000, clayasaurus wrote:
>> 
>>>is this the correct way to set a dynamic 2D array?
>>>
>>>int[][] dynamic;
>>>
>>>dynamic.length = width;
>>>
>>>for (int i = 0; i < dynamic.length; i++)
>>>    dynamic[i].length = height;
>>>
>>>Just seems a bit weird.
>> 
>> Currently, yes. Though it could also be written as ...
>> 
>>  int[][] dynamic;
>> 
>>  dynamic.length = width;
>> 
>>  foreach (inout int[] x; dynamic)
>>      x.length = height;
>> 
> 
> can't you just say this?
> dynamic[].length = height;

No. You get this message ...

 slice expression dynamic[] is not a modifiable lvalue

-- 
Derek
Melbourne, Australia
31/05/2005 4:46:02 PM

"Derek Parnell" <derek@psych.ward> wrote in message news:k3gx4tkutm62$.wl0ydvkulqru.dlg@40tude.net...
>> can't you just say this?
>> dynamic[].length = height;
>
> No. You get this message ...
>
> slice expression dynamic[] is not a modifiable lvalue

Isn't this something that would be possible with array vectorization?

I'd really love this syntax..

Jarrett Billingsley wrote:
> "Derek Parnell" <derek@psych.ward> wrote in message news:k3gx4tkutm62$.wl0ydvkulqru.dlg@40tude.net...
> 
>>>can't you just say this?
>>>dynamic[].length = height;
<snip>
> I'd really love this syntax.. 

But it would create confusion..

http://www.digitalmars.com/drn-bin/wwwnews?digitalmars.D.bugs/1942

Stewart.

-- 
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