BSON_OID_HASH(3)

πŸ’… BSON_OID_HASH β€” like, the libbson one, bestie πŸŽ€

okay so real talk, this is bson_oid_hash from libbson (yes, that libbson, the MongoDB-adjacent one πŸ‘‘), and it's genuinely one of the most useful lil functions ever. no cap. we're hashing object IDs today and it's giving "small function, huge responsibility" ✨


✨ SYNOPSIS ✨

uint32_t
bson_oid_hash (const bson_oid_t *oid);

like, that's it. that's the whole signature. so clean. so iconic. 🫢


🌸 PARAMETERS 🌸

  • oid β€” a bson_oid_t. that's the only thing you pass in, bestie, and it's a pointer to a bson_oid_t, so please don't hand it a random thing and get mad at me πŸ’€

πŸ’– DESCRIPTION πŸ’–

so what does it do? it generates a hash code for oid β€” and the whole point of that hash code is that it's suitable for a hashtable. 🧚 like, that's the vibe. you've got an OID, you need to slot it into a hashtable bucket, this function is your girl. lowkey the MVP of hash-based data structures ngl.

no weird side effects, no drama, no "surprise, it mutated your OID" energy. it just hashes. periodt. 🌈


⭐ RETURNS ⭐

a 32-bit hash code. that's a uint32_t, so like, a number between 0 and 4294967295 if you were wondering. πŸ”₯


πŸ¦‹ AUTHOR πŸ¦‹

MongoDB, Inc β€” the ones who brought you this whole situation. slay. πŸ’œ


2009-present, MongoDB, Inc. β€” so like, they've been at this a minute. respect. πŸ™ˆ


ok literally don't forget: it's a hash code, so it's for hashtables and not for, like, security or anything fancy. hash codes are for bucketing, iykyk πŸ”‘

and that's the whole page, bestie!! this came from libbson 2.5.6, dated Oct 09, 2026 β€” screenshot it, frame it, put it on your wall. mwah πŸ’‹πŸŽ€βœ¨

πŸ“¦ where this page comes from