How can I load a Bloom filter from a file in C++ and ensure identical hashing to Python?
I have a data pipeline where Python builds a Bloom filter to track whether a composite time-series key (entity|metric) has been seen
The Python job:
Computes Bloom filter indices using a custom hash function
Uses double hashing (k)
Stores the bit-array into a file with metadata: the hash function and k.
Later, a C++ job must:
Open the same file
Reconstruct a Bloom filter from that bit array, with the metadata.
Any C++ library recommendations for this?