summary of roaring bitmap

[brentp]

Not sure if this is too high-level for this library, but
maybe something like:

typedef struct summary_s {
    uint32_t n_arrays 
    uint32_t n_rle
    uint32_t n_bitmap
    // and n_values_arrays, n_values_rle, n_values_bitmap ?
} summary_t

summary_t *roaring_bitmap_summary(roaring_bitmat_t *r)

from there, it's simpler to calculate sparsity and simple functions to show the different use of each container type.

[lemire]

Sure. This is easy. Do you want to define the variables of interest?

[brentp]

I think the main things of interested would be total % of containers of each type and % of values in each type of container.

also, total calculated memory-use (then easy to derive bits / int stored)

maybe also a measure of sparsity, e.g. how many empty (non-existent) containers. and/or entropy.

[lemire]

Implemented as per this commit

7fa04a6

Closing. Reopen if you disagree.