NAME

       clangd - manual page for clangd 14

DESCRIPTION

       OVERVIEW: clangd is a language server that provides IDE-like features to editors.

   It  should  be  used  via an editor plugin rather than invoked directly. For more information,
       see:
              https://clangd.llvm.org/ https://microsoft.github.io/language-server-protocol/

       clangd accepts flags on the commandline, and in the CLANGD_FLAGS environment variable.

       USAGE: clangd [options]

       OPTIONS:

       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

       clangd compilation flags options:

       --compile-commands-dir=<string>  -  Specify  a  path to look for compile_commands.json. If
              path is invalid, clangd will look in the current directory and parent paths of each
              source file

       --query-driver=<string>           -  Comma  separated  list  of  globs  for  white-listing
              gcc-compatible drivers that are safe to execute.  Drivers  matching  any  of  these
              globs     will     be     used     to     extract     system     includes.     e.g.
              /usr/bin/**/clang-*,/path/to/repo/**/g++-*

       clangd feature options:

       --all-scopes-completion         - If set to  true,  code  completion  will  include  index
              symbols  that are not defined in the scopes (e.g. namespaces) visible from the code
              completion point. Such completions can insert scope qualifiers

       --background-index              - Index project code in the background and  persist  index
              on disk.

       --clang-tidy                    - Enable clang-tidy diagnostics

       --completion-style=<value>      - Granularity of code completion suggestions

       =detailed
              -    One  completion item for each semantically distinct completion, with full type
              information

       =bundled
              -    Similar  completion  items  (e.g.  function  overloads)  are  combined.   Type
              information shown where possible

       --fallback-style=<string>         -  clang-format  style  to  apply  by  default  when  no
              .clang-format file is found

       --function-arg-placeholders     - When disabled, completions contain only parentheses  for
              function  calls.  When  enabled,  completions  also contain placeholders for method
              parameters

       --header-insertion=<value>      - Add #include directives when accepting code completions

       =iwyu  -   Include what you use. Insert the owning header for  top-level  symbols,  unless
              the header is already directly included or the symbol is forward-declared

       =never -   Never insert #include directives as part of code completion

       --header-insertion-decorators    -  Prepend  a circular dot or space before the completion
              label, depending on whether an include line will be inserted or not

       --limit-references=<int>        - Limit the number of references  returned  by  clangd.  0
              means no limit (default=1000)

       --limit-results=<int>            - Limit the number of results returned by clangd. 0 means
              no limit (default=100)

       --project-root=<string>         - Path to the project root. Requires  remote-index-address
              to be set.

       --remote-index-address=<string> - Address of the remote index server

       clangd miscellaneous options:

       --check[=<string>]                 -  Parse  one  file in isolation instead of acting as a
              language server. Useful to investigate/reproduce crashes or configuration problems.
              With --check=<filename>, attempts to parse a particular file.

       --check-lines[=<string>]           -  If  specified,  limits the range of tokens in -check
              file on which various features  are  tested.  Example  --check-lines=3-7  restricts
              testing  to  lines  3  to 7 (inclusive) or --check-lines=5 to restrict to one line.
              Default is testing entire file.

       --enable-config                 - Read user and project configuration from YAML files.
              Project config is from a .clangd file in the project  directory.   User  config  is
              from clangd/config.yaml in the following directories:

       Windows: %USERPROFILE%\AppData\Local
              Mac OS: ~/Library/Preferences/ Others: $XDG_CONFIG_HOME, usually ~/.config

              Configuration is documented at https://clangd.llvm.org/config.html

       -j=<uint>                       - Number of async workers used by clangd. Background index
              also uses this many workers.

       --malloc-trim                   - Release memory periodically via malloc_trim(3).

       --pch-storage=<value>           - Storing PCHs in memory increases memory usages, but  may
              improve performance

       =disk  -   store PCHs on disk

       =memory
              -   store PCHs in memory

       clangd protocol and logging options:

       --log=<value>                   - Verbosity of log messages written to stderr

       =error
              -   Error messages only

       =info  -   High level execution tracing

       =verbose
              -   Low level details

       --offset-encoding=<value>        -  Force the offsetEncoding used for character positions.
              This bypasses negotiation via client capabilities

       =utf-8
              -   Offsets are in UTF-8 bytes

       =utf-16
              -   Offsets are in UTF-16 code units

       =utf-32
              -   Offsets are in unicode codepoints

       --path-mappings=<string>        - Translates between client paths (as  seen  by  a  remote
              editor) and server paths (where clangd sees files on disk). Comma separated list of
              '<client_path>=<server_path>' pairs, the first entry matching a given path is used.
              e.g. /home/project/incl=/opt/include,/home/project=/workarea/project

       --pretty                        - Pretty-print JSON output