Feature request - unsigned integer data types.
I am trying to store a python integer as a uint64_t in a property map, however the current integral data types supported only include signed data types.
This leaves me with the only option of storing the uint64_t values in a property map with type object, however this is suboptimal as the storage required for the graph increases.
I made a simple test with two graphs of a million nodes with random 64-bit integers values attached to the nodes, comparing the graph size in the case of int64_t and object property maps. My results show that in the former case the graph (gt format) takes up about 16MiB while in the latter case it takes 37MiB.
I have not test load times but I suspect that it may have an impact there as well.
I am wondering why unsigned data types have not been provided, but if the task is not too difficult it would be nice to have.