CLANG-FORMAT

NAME

clang-format - manual page for clang-format 19

DESCRIPTION

OVERVIEW: A tool to format C/C++/Java/JavaScript/JSON/Objective-C/Protobuf/C# code.

If no arguments are specified, it formats the code from standard input and writes the result to the standard output. If <file>s are given, it reformats the files. If -i is specified together with <file>s, the files are edited in-place. Otherwise, the result is written to the standard output.

USAGE: clang-format [options] [@<file>] [<file> ...]

OPTIONS:

Clang-format options:

	--Werror - If set, changes formatting warnings to errors
	--Wno-error=<value> - If set don’t error out on the specified warning type.

=unknown

- If set, unknown format options are only warned about.

This can be used to enable formatting, even if the

configuration contains unknown (newer) options. Use with caution, as this might lead to dramatically differing format depending on an option being supported or not.

--assume-filename=<string> - Set filename used to determine the
language and to find

.clang-format file. Only used when reading from stdin. If this is not passed, the .clang-format file is searched relative to the current working directory when reading stdin. Unrecognized filenames are treated as C++. supported:

CSharp: .cs

Java: .java JavaScript: .mjs .js .ts Json: .json Objective-C: .m .mm Proto: .proto .protodevel TableGen: .td TextProto: .txtpb .textpb .pb.txt .textproto .asciipb Verilog: .sv .svh .v .vh

--cursor=<uint> - The position of the cursor when invoking

clang-format from an editor integration

--dry-run - If set, do not actually make the formatting changes

--dump-config - Dump configuration options to stdout and

exit.

Can be used with -style option.

--fail-on-incomplete-format - If set, fail with exit code 1 on incomplete format.

--fallback-style=<string> - The name of the predefined style used as a

fallback in case clang-format is invoked with -style=file, but can not find the .clang-format file to use. Defaults to ’LLVM’. Use -fallback-style=none to skip formatting.

--ferror-limit=<uint> - Set the maximum number of clang-format
errors to emit

before stopping (0 = no limit). Used only with --dry-run or -n

	--files=<filename> - A file containing a list of files to process, one per line.
	-i - Inplace edit <file>s, if specified.

--length=<uint> - Format a range of this length (in bytes).

Multiple ranges can be formatted by specifying several -offset and -length pairs. When only a single -offset is specified without -length, clang-format will format up to the end of the file. Can only be used with one input file.

--lines=<string> - <start line>:<end line> - format a range
of

lines (both 1-based). Multiple ranges can be formatted by specifying several -lines arguments. Can’t be used with -offset and -length. Can only be used with one input file.

-n - Alias for --dry-run

--offset=<uint> - Format a range starting at this byte

offset.

Multiple ranges can be formatted by specifying several -offset and -length pairs. Can only be used with one input file.

--output-replacements-xml - Output replacements as XML.

--qualifier-alignment=<string> - If set, overrides the qualifier alignment

style

determined by the QualifierAlignment style flag

--sort-includes - If set, overrides the include sorting
behavior

determined by the SortIncludes style flag

--style=<string> - Set coding style. <string> can be:

1. A preset: LLVM, GNU, Google, Chromium, Microsoft,

Mozilla, WebKit.

2. ’file’ to load style configuration from a

.clang-format file in one of the parent directories

of the source file (for stdin, see --assume-filename). If no .clang-format file is found, falls back to --fallback-style. --style=file is the default.

3. ’file:<format_file_path>’ to explicitly specify

the configuration file.

4. "{key: value, ...}" to set specific parameters, e.g.:

--style="{BasedOnStyle: llvm, IndentWidth: 8}"

--verbose - If set, shows the list of processed files

Generic Options:

	--help - Display available options (--help-hidden for more)
	--help-list - Display list of available options (--help-list-hidden for more)
	--version - Display the version of this program