Expected unqualified-id in C's header file

[bfmhno3]

Issue Prelude

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Issue Details

What did you do?

1. touch object.h
2. vim object.h
3. Enter insert mode and type following C codes:

#ifndef __OBJECT_H__

void* new(const void* class, ...);
void delete(void* self);

#endif /*__OBJECT_H__  */

Description

I just work with my object-oriented library in C language. I want to implement these two functions, but YCM thinks they are wrong, and report Expected unqualified-id [expected_unqualified_id] error.
I found it that Vim think .h is a CPP's header file, so I let Vim change its opinion with autocmd BufNewFile,BufRead *.h set filetype=c in my .vimrc.
But this error still exists, I am confused because I have specified '-std=c99' and 'c' in flags in my .ycm_extra_config.py.

Diagnostic data

Output of vim --version

VIM - Vi IMproved 9.1 (2024 Jan 02, compiled Apr 25 2024 16:37:58)
Included patches: 1-369
Compiled by root@BFmHNO3
Huge version without GUI.  Features included (+) or not (-):
+acl               +file_in_path      +mouse_urxvt       -tag_any_white
+arabic            +find_in_path      +mouse_xterm       -tcl
+autocmd           +float             +multi_byte        +termguicolors
+autochdir         +folding           +multi_lang        +terminal
-autoservername    -footer            -mzscheme          +terminfo
-balloon_eval      +fork()            +netbeans_intg     +termresponse
+balloon_eval_term -gettext           +num64             +textobjects
-browse            -hangul_input      +packages          +textprop
++builtin_terms    +iconv             +path_extra        +timers
+byte_offset       +insert_expand     +perl              +title
+channel           +ipv6              +persistent_undo   -toolbar
+cindent           +job               +popupwin          +user_commands
-clientserver      +jumplist          +postscript        +vartabs
-clipboard         +keymap            +printer           +vertsplit
+cmdline_compl     +lambda            +profile           +vim9script
+cmdline_hist      +langmap           -python            +viminfo
+cmdline_info      +libcall           +python3           +virtualedit
+comments          +linebreak         +quickfix          +visual
+conceal           +lispindent        +reltime           +visualextra
+cryptv            +listcmds          +rightleft         +vreplace
+cscope            +localmap          -ruby              +wildignore
+cursorbind        +lua               +scrollbind        +wildmenu
+cursorshape       +menu              +signs             +windows
+dialog_con        +mksession         +smartindent       +writebackup
+diff              +modify_fname      -sodium            -X11
+digraphs          +mouse             -sound             +xattr
-dnd               -mouseshape        +spell             -xfontset
-ebcdic            +mouse_dec         +startuptime       -xim
+emacs_tags        -mouse_gpm         +statusline        -xpm
+eval              -mouse_jsbterm     -sun_workshop      -xsmp
+ex_extra          +mouse_netterm     +syntax            -xterm_clipboard
+extra_search      +mouse_sgr         +tag_binary        -xterm_save
-farsi             -mouse_sysmouse    -tag_old_static
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
 3rd user vimrc file: "~/.config/vim/vimrc"
      user exrc file: "$HOME/.exrc"
       defaults file: "$VIMRUNTIME/defaults.vim"
  fall-back for $VIM: "/usr/local/vim/share/vim"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -D_REENTRANT -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: gcc -Wl,-E -L/usr/local/lib -Wl,--as-needed -o vim -lm -ltinfo -L/usr/lib -llua5.3 -Wl,-E -fstack-protector-strong -L/usr/local/lib -L/usr/lib/x86_64-linux-gnu/perl/5.30/CORE -lperl -ldl -lm -lpthread -lcrypt -L/usr/lib/python3.8/config-3.8-x86_64-linux-gnu -lpython3.8 -lcrypt -lpthread -ldl -lutil -lm -lm

Output of YcmDebugInfo

Printing YouCompleteMe debug information...
-- Resolve completions: Never
-- Client logfile: /tmp/ycm_82lcrxa3.log
-- Server Python interpreter: /opt/miniforge3/bin/python3
-- Server Python version: 3.10.14
-- Server has Clang support compiled in: False
-- Clang version: None
-- Extra configuration file found and loaded
-- Extra configuration path: /home/bfmhno3/.ycm_extra_conf.py
-- C-family completer debug information:
--   Clangd running
--   Clangd process ID: 52506
--   Clangd executable: ['/home/bfmhno3/.vim/plugged/YouCompleteMe/third_party/ycmd/third_party/clangd/output/bin/clangd', '-header-insertion-decorators=0', '-resource-dir=/home/bfmhno3/.vim/plugged/YouCompleteMe/third_party/ycmd/third_party/clang/lib/clang/18.1.3', '-limit-results=500']
--   Clangd logfiles:
--     /tmp/clangd_stderrjd0t5rfe.log
--   Clangd Server State: Initialized
--   Clangd Project Directory: /home/bfmhno3
--   Clangd Open Workspaces: {'/home/bfmhno3'}
--   Clangd Settings: {}
--   Clangd Compilation Command: False
-- Server running at: http://127.0.0.1:60943
-- Server process ID: 52478
-- Server logfiles:
--   /tmp/ycmd_60943_stdout_11q5p3gk.log
--   /tmp/ycmd_60943_stderr_bpmhv4dp.log
-- Semantic highlighting supported: True
-- Virtual text supported: True
-- Popup windows supported: True

Output of YcmDiags

object.h|3 col 7 error| Expected unqualified-id [expected_unqualified_id]
object.h|4 col 6 error| Expected unqualified-id [expected_unqualified_id]

Output of git rev-parse HEAD in YouCompleteMe installation directory

5d8a7fe9304113c66568be60100b2600860cc505

Contents of YCM, ycmd and completion engine logfiles

Reproduce the issue with vim -Nu /path/to/YCM/vimrc_ycm_minimal, which
enabled debug logging and other useful diagnostics. Include a link to a
gist containing all of the log files listed by :YcmToggleLogs.

My gist is here.

OS version, distribution, etc.

            .-/+oossssoo+/-.               user@hostname
        `:+ssssssssssssssssss+:`           ---------------
      -+ssssssssssssssssssyyssss+-         OS: Ubuntu 22.04.4 LTS on Windows 10 x86_64
    .ossssssssssssssssssdMMMNysssso.       Kernel: 5.15.153.1-microsoft-standard-WSL2
   /ssssssssssshdmmNNmmyNMMMMhssssss/      Uptime: 3 hours, 20 mins
  +ssssssssshmydMMMMMMMNddddyssssssss+     Packages: 1234 (dpkg), 6 (snap)
 /sssssssshNMMMyhhyyyyhmNMMMNhssssssss/    Shell: zsh 5.8
.ssssssssdMMMNhsssssssssshNMMMdssssssss.   Terminal: Relay(53334)
+sssshhhyNMMNyssssssssssssyNMMMysssssss+   CPU: 13th Gen Intel i5-13500H (16) @ 3.187GHz
ossyNMMMNyMMhsssssssssssssshmmmhssssssso   GPU: 73cd:00:00.0 Microsoft Corporation Device 008e
ossyNMMMNyMMhsssssssssssssshmmmhssssssso   Memory: 625MiB / 7808MiB
+sssshhhyNMMNyssssssssssssyNMMMysssssss+
.ssssssssdMMMNhsssssssssshNMMMdssssssss.
 /sssssssshNMMMyhhyyyyhdNMMMNhssssssss/
  +sssssssssdmydMMMMMMMMddddyssssssss+
   /ssssssssssshdmNNNNmyNMMMMhssssss/
    .ossssssssssssssssssdMMMNysssso.
      -+sssssssssssssssssyyyssss+-
        `:+ssssssssssssssssss+:`
            .-/+oossssoo+/-.

Output of build/install commands

Include link to a gist containing the invocation and entire output of
install.py if reporting an installation issue.

[bstaletic]

That's odd. I can't repro at all and this really should not happen.
If you have clang available, try compiling your file with clang.

[puremourning]

Please share your extra conf file

I think it's not working.

Clangd Compilation Command: False

https://gist.github.com/JoeAndMark/88f33342ed2b1b55fc6159196c59cbf8#file-clangd_stderr5nlvxsp_-log-L31

[bfmhno3]

Please share your extra conf file

I think it's not working.

Clangd Compilation Command: False

https://gist.github.com/JoeAndMark/88f33342ed2b1b55fc6159196c59cbf8#file-clangd_stderr5nlvxsp_-log-L31

I have added my .ycm_extra_conf.py, you can inspect it at the following URL:

• https://gist.github.com/JoeAndMark/88f33342ed2b1b55fc6159196c59cbf8#file-ycm_extra_conf-py

[bfmhno3]

That's odd. I can't repro at all and this really should not happen. If you have clang available, try compiling your file with clang.

The YCM what I use is compiled with --clangd-completer, so I just recompiled it with '--clang-completer'. I add the output to my gist, you can inspect it at the following URL:

• https://gist.github.com/JoeAndMark/88f33342ed2b1b55fc6159196c59cbf8#file-install_clang_output-txt

But the interesting thing is that the error still exists, I have no idea about it.

Some other information you may want to know:

1. clang version

Ubuntu clang version 14.0.0-1ubuntu1.1
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

2. clangd version

clangd version 10.0.0-4ubuntu1

3. Local YCM repository status

On branch master
Your branch is up to date with 'origin/master'.

nothing to commit, working tree clean

[puremourning]

Your extr conf file is broken using extremely legacy FlagsForFile method

Please see then documentation for how to correctly configure clangd.

[bfmhno3]

Your extr conf file is broken using extremely legacy FlagsForFile method

Please see then documentation for how to correctly configure clangd.

It't unbelievable that I forgot this, thanks for your patience and guidance.
Best regards.

[bfmhno3]

That's odd. I can't repro at all and this really should not happen. If you have clang available, try compiling your file with clang.

I think I find the solution to my problem, thanks for you patience and guidance.
Best regards.