DIAGTOOL(1)

📦
version 20.1.8 · 4 versions
, in fedora 43, fedora 44

💅 DIAGTOOL — ok bestie, it's the clang diagnostics tool

so this is diagtool, from the Clang manual, section 1. it's giving "small but mighty" and you're gonna love her.

✨ NAME ✨

diagtool — the clang diagnostics tool 🩺

🌸 SYNOPSIS 🌸

diagtool command [args]

🦋 DESCRIPTION 🦋

okay so here's the tea: diagtool isn't one tool, it's literally a combination of four tools for dealing with diagnostics in clang. four. a whole squad. 👑

🎀 SUBCOMMANDS 🎀

diagtool is separated into several subcommands, and each one is tailored to a different purpose. here's the quick lil summary of each command, and then the deets come in the sections right after. iykyk 💖

  • find-diagnostic-id — print the id of the given diagnostic.
  • list-warnings — list warnings and their corresponding flags.
  • show-enabled — show which warnings are enabled for a given command line.
  • tree — show warning flags in a tree view.

🔍 find-diagnostic-id

diagtool find-diagnostic-id diagnostic-name

📋 list-warnings

diagtool list-warnings

✅ show-enabled

diagtool show-enabled [options] filename ...

🌳 tree

diagtool tree [diagnostic-group]

👑 AUTHOR 👑

maintained by the Clang / LLVM Team (<http://clang.llvm.org>) — the ones who keep this whole thing slaying 🫶

2007-2025, The Clang Team — that's a long-running era fr fr 🌈

and that's the whole page bestie, no cap. this version of the Clang manual page for diagtool is dated Sep 03, 2025 — go forth and diagnose, you main character 🎀✨

📦 where this page comes from