BSON_READER_TELL(3)

💅 BSON_READER_TELL(3) — the libbson manual page 💅

okay bestie, welcome to the libbson glow-up of bson_reader_tell. this is literally the “where are we rn?” function for your reader, and she ate. ✨

---

✨ SYNOPSIS ✨

off_t
bson_reader_tell (bson_reader_t *reader);

🎀 PARAMETERS 🎀

• reader — A bson_reader_t. that’s the reader, bestie — the main character in this little story. 🫶

🦋 DESCRIPTION 🦋

Tells the current position within the underlying stream. it’s giving cursor-location reveal, no cap. 💅

🌸 RETURNS 🌸

-1 on failure, otherwise the offset within the underlying stream. so if it’s a flop you get -1; if it slays, you get the offset. periodt. 💖

👑 AUTHOR 👑

MongoDB, Inc

💜 COPYRIGHT 💜

2009-present, MongoDB, Inc.

---

libbson 2.5.6 • Oct 09, 2026 • mwah 💋