zstd_compress_bound(9)

📦 version 7.3.1, in nixpkgs unstable

💅 zstd_compress_bound — worst-case size energy

okay so bestie, welcome to the Kernel API Manual page for zstd_compress_bound(9) ✨ this is the little function that tells you, fr fr, how big your compressed buffer could possibly get in the absolute worst case scenario 💀 no surprises, no cap.

🦋 SYNOPSIS

size_t zstd_compress_bound (size_t src_size );

that's it, that's the whole vibe 🎀 one argument, one return value, zero drama.

🌸 ARGUMENTS

  • src_size — the size of the data you're about to compress 💖 like, how many bytes are we working with, bestie?

👑 RETURN

the maximum compressed size in the worst case scenario 🌈 literally the upper bound, the "how big should I make my buffer" answer, the icon itself.

ngl bestie, "worst case" is doing a lot of work there — allocate for this and you're safe, periodt 💅

🔥 SEE ALSO

okay so here's the whole friend group 🫶 the kernel file lives at ./include/linux/zstd.h, and these are all the siblings:

40 besties, go say hi 😭💜

✨ that's the whole page, mwah ✨

sign-off time, iykyk: this gem lives under ./include/linux, and it's dated October 2026 — future icon behaviour tbh ⭐💅 🎀

📦 where this page comes from