GPERF(1)

📦 version 8.0.5, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

✨ GPERF(1) — General Commands Manual 💖 ✨

Heyyy bestie, okay so the manual name here is ace_gperf 🦋 It's the tool that makes a perfect hash function out of a key set. Literally iconic. 👑

🌸 NAME

  • ace_gperf — generate a perfect hash function from a key set 💅

🎀 SYNOPSIS

ace_gperf [ -adghijklnoprsStv ] [ keyfile ]

💜 DESCRIPTION

Okay so ace_gperf reads a set of "keys" from keyfile (or, by default, from the standard input) and tries to find a non-minimal perfect hashing function that recognizes a member of the key set in constant, i.e., O(1), time. ✨ Main character energy, no cap. 😭

If it finds one, it generates a pair of C source code routines that do the hashing and table lookup. 🔥 All of that generated code gets sent to the standard output. 🧚

Heads up: the keyfile is optional. If you don't give one, it just reads from standard input, so you can pipe stuff right in. 🫶

Please refer to the ace_gperf.texinfo file for more info. 🌈 This file comes bundled with the ace_gperf release, so go check it out, it's giving full documentation vibes. 🍓

Sign-off: This page is from the 4th Berkeley Distribution (December 16, 1988), so it's a little vintage, but the GPERF(1) magic still slaps. 💅🌈 Stay perfect, bestie! 🦋💖

📦 where this page comes from