Any interest in a function return number of bytes of memory used by a bitmap?

[madscientist]

I had a need to calculate the number of bytes of memory used for a given bitmap, so I created a set of functions that will do this, and plumbed them through both the C and C++ interfaces.

Is there any interest in having something like this in the codebase?

/**
 * Return the number of bytes of memory used by the bitmap.
 */
size_t roaring_bitmap_memory_size_in_bytes(const roaring_bitmap_t *r);