I am struggling with initializing an Emsi Containers DynamicArray in a nice way. Some background information of my usecase:

I experimenting in porting some old 3d engine code of mine from c++ to dlang. In the engine I want to exactly control when resources are freed and not rely on the garbage collector. For that I am using reference counters courtesy of autoptr.

e.g.

alias Texture = IntrusivePtr!TextureData; // dub package autoptr
class TextureData
{
  IFImage image; // dub package imagefmt
}

another class of mine now is supposed to hold several of those textures for multitexturing and should be initialized in its constructor:

class Appearance
{
  Texture[] textures;
  this(Texture[] textures)
  {
    this.textures = textures;
  }
}

Unfortunately this does not work properly together with autoptr's (see https://github.com/submada/autoptr/issues/5#issuecomment-997683868).

Because of that I am using now DynamicArrays from Emsi Containers, but I am having trouble initializing them:

class Apperance
{
  DynamicArray!Texture textures;
  this(DynamicArray!Texture textures)
  {
    this.textures = textures;
  }
}

does not compile.

What would be the best way to initialize the variable?

Kind regards,
Christian

On Saturday, 30 April 2022 at 20:22:43 UTC, Christian Köstlin wrote:

alias Texture = IntrusivePtr!TextureData; // dub package autoptr
class TextureData
{
  IFImage image; // dub package imagefmt
}

class Appearance
{
  Texture[] textures;
  this(Texture[] textures)
  {
    this.textures = textures;
  }
}

class Apperance
{
  DynamicArray!Texture textures;
  this(DynamicArray!Texture textures)
  {
    this.textures = textures;
  }
}

DynamicArray has disabled postblit (is not copyable).

Package autoptr is deprecated (internaly redirected to btl:atuoptr), all functionality is moved to package BTL (subpackage btl:autoptr). This library contains subpackage btl:vector with functionality like DynamicArray with support for copying. I use IntrusivePtr inside Vector/SmallVector and i have no problems.

On 2022-05-01 09:12, vit wrote: