• Hoenir <mrmocool gmx.de> Jan 14 2009
• Steve Schveighoffer <schveiguy yahoo.com> Jan 14 2009
• Hoenir <mrmocool gmx.de> Jan 14 2009

Hoenir <mrmocool gmx.de> writes:

Having a small "problem" here:
(Tile is a struct)

Tile[][] tiles = new Tile[85][85];

gives me
Error: cannot implicitly convert expression (new 
Tile[85u][](cast(uint)85)) of type Tile[85u][] to Tile[][]

I'm trying to understand why that error occurs.

Steve Schveighoffer <schveiguy yahoo.com> writes:

On Wed, 14 Jan 2009 20:32:48 +0100, Hoenir wrote:

 Having a small "problem" here:
 (Tile is a struct)
 
 Tile[][] tiles = new Tile[85][85];
 
 gives me
 Error: cannot implicitly convert expression (new
 Tile[85u][](cast(uint)85)) of type Tile[85u][] to Tile[][]
 
 I'm trying to understand why that error occurs.


D interprets a new expression with an array index as:

new T[x]

means create a new dynamic array of type T with x elements.  Your T is 
interpreted as:

Tile[85], i.e. a static array.

it's not well known, but you can do this for what you want:

Tile[][] tiles = new Tile[][](85, 85);

-Steve

Hoenir <mrmocool gmx.de> writes:

Steve Schveighoffer schrieb:
 D interprets a new expression with an array index as:
 
 new T[x]
 
 means create a new dynamic array of type T with x elements.  Your T is 
 interpreted as:
 
 Tile[85], i.e. a static array.
 
 it's not well known, but you can do this for what you want:
 
 Tile[][] tiles = new Tile[][](85, 85);
 



Thanks, that works :)