Can anyone suggest a fast, efficient method for storing and accessing a sparse octree? Preferably something that can be easily implemented in HLSL. (I'm working a raycasting/voxel app) In this i...

What is an appropriate data structure to represent a sparse tesnor in C++? The first option that comes to mind is a boost::unordered_map since it allows operations like fast setting and retrieval o...

I am implementing a templated sparse_vector class. It's like a vector, but it only stores elements that are different from their default constructed value. So, sparse_vector would store the lazily...

I can create a sparse php array (or map) using the command: $myarray = array(10=>'hi','test20'=>'howdy'); I want to serialize/deserialize this as JSON. I can serialize it using the command...

I've got a sparse array that I want to represent in JSON. For example: -10 => 100 -1 => 102 3 => 44 12 => -87 12345 => 0 How can I do this? Can I do this?