Function to compute or estimate compressed size

[maximecaron]

in "FastPFor/headers/codecs.h" virtual std::vector<uint32_t> compress(const std::vector<uint32_t> & data)
Is it possible to compute the size of the compressed output or a close approximation instead of allocating a big chunk and resizing it later.?

[lemire]

Absolutely, it is possible. And no, it is not implemented. ;-)

So this is a very valid "feature request".

[Soficlyopathrmiss]

Good day,
If it is possible to calculate the size of the compressed output , how can i do this??

[Soficlyopathrmiss]

compressed_output.size() can get me the total size of compressed output in bits??

[lemire]

@Soficlyopathrmiss You'll have to be more specific regarding your question.