dev branch: Obvious mistake in the code

[shleym2000]

Two conditional statements always report false in bool NeuralNetwork::check_layer_type(const Layer::Type layer_type) code.

Now:

    {
        const Layer::Type first_layer_type = layers[0]->get_type();

        if(first_layer_type != Layer::Type::Scaling2D) return false;
        if(first_layer_type != Layer::Type::Scaling4D) return false;
    }

Should be

    {
        const Layer::Type first_layer_type = layers[0]->get_type();

        if ((first_layer_type != Layer::Type::Scaling2D) && (first_layer_type != Layer::Type::Scaling4D))
        {
            return false;
        }
    }

[shleym2000]

Today this wrong code was changed into

        if(first_layer_type != Layer::Type::Scaling2D || first_layer_type != Layer::Type::Scaling4D) return false;

It still does not make sense, because absolutely any particular type would not match Scaling2D OR Scaling4D .

It should be AND ( && ) operation instead to have a special treatment for Scaling2D AND Scaling4D and different treatment for everything else.