DIAGTOOL(1)

📦
version 23.1.3 · 14 versions
, in centos-stream 9

🎀 NAME 🎀

okay so diagtool(1) is the clang diagnostics tool, and this page comes from the Clang manual. She’s giving utility-belt energy for diagnostics, and we’re obsessed. 💖

✨ SYNOPSIS ✨

diagtool command [args]

🌸 DESCRIPTION 🌸

diagtool is literally a combination of four tools for dealing with diagnostics in clang. no cap, four little besties in one trench coat. 🫶

👑 SUBCOMMANDS 👑

diagtool is separated into several subcommands, each one tailored to a different purpose. Here’s the quick tea on each command — the sections right after have the extra detail. 💅

  • 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>). 🫶

2007-2026, The Clang Team. periodt. 💖

cute little footer sign-off: this is the Clang manual, version 23, dated Oct 06, 2026. mwah 💋

📦 where this page comes from