doesn't work for cstdio

[wenxingxing]

Issue Prelude

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Issue Details

Provide a clear description of the problem, including the following key
questions: YCM report error on every function in <stdio.h>, but works for other STL libs ...

• What actually happened?
  

Diagnostic data

Output of vim --version

VIM - Vi IMproved 8.0 (2016 Sep 12, compiled Sep 13 2017 04:07:30)
MacOS X (unix) version
Included patches: 1-1098
Compiled by [email protected]
Huge version with MacVim GUI. Features included (+) or not (-):
+acl +find_in_path -mouse_sysmouse -tag_any_white
+arabic +float +mouse_urxvt -tcl
+autocmd +folding +mouse_xterm +termguicolors
+balloon_eval -footer +multi_byte +terminal
+browse +fork() +multi_lang +terminfo
++builtin_terms +fullscreen -mzscheme +termresponse
+byte_offset -gettext +netbeans_intg +textobjects
+channel -hangul_input +num64 +timers
+cindent +iconv +odbeditor +title
+clientserver +insert_expand +packages +toolbar
+clipboard +job +path_extra +transparency
+cmdline_compl +jumplist +perl/dyn +user_commands
+cmdline_hist +keymap +persistent_undo +vertsplit
+cmdline_info +lambda +postscript +virtualedit
+comments +langmap +printer +visual
+conceal +libcall +profile +visualextra
+cryptv +linebreak +python/dyn +viminfo
+cscope +lispindent +python3/dyn +vreplace
+cursorbind +listcmds +quickfix +wildignore
+cursorshape +localmap +reltime +wildmenu
+dialog_con_gui +lua/dyn +rightleft +windows
+diff +menu +ruby/dyn +writebackup
+digraphs +mksession +scrollbind -X11
+dnd +modify_fname +signs -xfontset
-ebcdic +mouse +smartindent +xim
+emacs_tags +mouseshape +startuptime -xpm
+eval +mouse_dec +statusline -xsmp
+ex_extra -mouse_gpm -sun_workshop -xterm_clipboard
+extra_search -mouse_jsbterm +syntax -xterm_save
+farsi +mouse_netterm +tag_binary
+file_in_path +mouse_sgr +tag_old_static
system vimrc file: "$VIM/vimrc"
user vimrc file: "$HOME/.vimrc"
2nd user vimrc file: "/.vim/vimrc"
user exrc file: "$HOME/.exrc"
system gvimrc file: "$VIM/gvimrc"
user gvimrc file: "$HOME/.gvimrc"
2nd user gvimrc file: "/.vim/gvimrc"
defaults file: "$VIMRUNTIME/defaults.vim"
system menu file: "$VIMRUNTIME/menu.vim"
fall-back for $VIM: "/Applications/MacVim.app/Contents/Resources/vim"
Compilation: clang -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_MACVIM -Wall -Wno-unknown-pragmas -pipe -DMACOS_X_UNIX -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: clang -L. -fstack-protector -L/usr/local/opt/libyaml/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/openssl/lib -L. -fstack-protector -L/usr/local/opt/libyaml/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/openssl/lib -L/usr/local/lib -o Vim -framework Cocoa -framework Carbon -lm -lncurses -liconv -framework Cocoa -fstack-protector -L/System/Library/Perl/5.16/darwin-thread-multi-2level/CORE

Include link here to a gist containing the entire logfiles for ycm, ycmd
and any completer logfiles listed by :YcmToggleLogs.

OS version, distribution, etc.

Darwin mwx.lan 17.0.0 Darwin Kernel Version 17.0.0: Thu Aug 24 21:48:19 PDT 2017; root:xnu-4570.1.46~2/RELEASE_X86_64 x86_64

Output of build/install commands

-- The C compiler identification is AppleClang 9.0.0.9000037
-- The CXX compiler identification is AppleClang 9.0.0.9000037
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found PythonLibs: /usr/local/opt/python/Frameworks/Python.framework/Versions/2.7/lib/python2.7/config/libpython2.7.dylib (found suitable version "2.7.14", minimum required is "2.6")
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- filesystem
-- regex
-- system
-- python
-- Configuring done
-- Generating done
-- Build files have been written to: /private/var/folders/pw/yg2352tj7cj_20pz3sb83r500000gn/T/ycm_build_Yx6GJN
Scanning dependencies of target ycm_core
[ 9%] Building CXX object ycm/CMakeFiles/ycm_core.dir/CandidateRepository.cpp.o
[ 9%] Building CXX object ycm/CMakeFiles/ycm_core.dir/Candidate.cpp.o
[ 18%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/Documentation.cpp.o
[ 22%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/CompletionData.cpp.o
[ 27%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/ClangHelpers.cpp.o
[ 31%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/ClangUtils.cpp.o
[ 31%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/ClangCompleter.cpp.o
[ 36%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/CompilationDatabase.cpp.o
[ 40%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/Range.cpp.o
[ 45%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/TranslationUnit.cpp.o
[ 50%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ClangCompleter/TranslationUnitStore.cpp.o
[ 54%] Building CXX object ycm/CMakeFiles/ycm_core.dir/IdentifierCompleter.cpp.o
[ 59%] Building CXX object ycm/CMakeFiles/ycm_core.dir/IdentifierDatabase.cpp.o
[ 63%] Building CXX object ycm/CMakeFiles/ycm_core.dir/IdentifierUtils.cpp.o
[ 68%] Building CXX object ycm/CMakeFiles/ycm_core.dir/LetterNode.cpp.o
[ 72%] Building CXX object ycm/CMakeFiles/ycm_core.dir/LetterNodeListMap.cpp.o
[ 77%] Building CXX object ycm/CMakeFiles/ycm_core.dir/PythonSupport.cpp.o
[ 81%] Building CXX object ycm/CMakeFiles/ycm_core.dir/Result.cpp.o
[ 86%] Building CXX object ycm/CMakeFiles/ycm_core.dir/Utils.cpp.o
[ 90%] Building CXX object ycm/CMakeFiles/ycm_core.dir/versioning.cpp.o
[ 95%] Building CXX object ycm/CMakeFiles/ycm_core.dir/ycm_core.cpp.o
[100%] Linking CXX shared library /Users/mwx/.vim/plugged/YouCompleteMe/third_party/ycmd/ycm_core.so
[100%] Built target ycm_core
Searching Python 2.7 libraries...
Found Python library: /usr/local/opt/python/Frameworks/Python.framework/Versions/2.7/lib/python2.7/config/libpython2.7.dylib
Found Python headers folder: /usr/local/Cellar/python/2.7.14/Frameworks/Python.framework/Versions/2.7/include/python2.7

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

[mellery451]

I'm having a very similar issue - in my case for different set of standard headers, but nonetheless:

/usr/include/netinet/in.h|532 col 2 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|537 col 2 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|550 col 2 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|551 col 2 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|552 col 2 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|553 col 2 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|568 col 62 error| C++ requires a type specifier for all declarations
/usr/include/netinet/in.h|569 col 6 error| C++ requires a type specifier for all declarations
/usr/include/netinet/in.h|569 col 6 error| redefinition of parameter 'uint32_t'
/usr/include/netinet/in.h|570 col 62 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|571 col 6 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|572 col 26 error| C++ requires a type specifier for all declarations
/usr/include/netinet/in.h|573 col 6 error| C++ requires a type specifier for all declarations
/usr/include/netinet/in.h|573 col 6 error| redefinition of parameter 'uint32_t'
/usr/include/netinet/in.h|573 col 16 error| C++ requires a type specifier for all declarations
/usr/include/netinet/in.h|573 col 16 error| redefinition of parameter 'uint32_t'
/usr/include/netinet/in.h|574 col 26 error| C++ requires a type specifier for all declarations
/usr/include/netinet/in.h|575 col 6 error| unknown type name 'uint32_t'
/usr/include/netinet/in.h|575 col 18 error| unknown type name 'uint32_t'
get_my_ip/get_ip.cpp|30 col 5 error| use of undeclared identifier 'memset'
get_my_ip/get_ip.cpp|36 col 19 error| invalid operands to binary expression ('std::__1::ostream' (aka 'int') and 'const char *')
get_my_ip/get_ip.cpp|41 col 15 error| invalid operands to binary expression ('std::__1::ostream' (aka 'int') and 'const char *')
get_my_ip/get_ip.cpp|54 col 19 error| invalid operands to binary expression ('std::__1::ostream' (aka 'int') and 'const char *')
get_my_ip/get_ip.cpp|60 col 15 error| invalid operands to binary expression ('std::__1::ostream' (aka 'int') and 'const char *')
get_my_ip/get_ip.cpp|63 col 19 error| invalid operands to binary expression ('std::__1::ostream' (aka 'int') and 'const char *')
get_my_ip/get_ip.cpp|63 col 56 error| use of undeclared identifier 'errno'
get_my_ip/get_ip.cpp|86 col 27 error| invalid operands to binary expression ('std::__1::ostream' (aka 'int') and 'const char *')
get_my_ip/get_ip.cpp|91 col 27 error| invalid operands to binary expression ('std::__1::ostream' (aka 'int') and 'const char *')
get_my_ip/get_ip.cpp|94 col 27 error| invalid operands to binary expression ('std::__1::ostream' (aka 'int') and 'const char *')
get_my_ip/get_ip.cpp|94 col 63 error| use of undeclared identifier 'errno'

I believe the thing that changed is Xcode..it recently updated to apple clang 9.0.0 (notice the ycmd build output above). I've been a long time user of YCM and I've just started having these issues after XCode updated recently.

Any suggestions about what to try to resolve this? Are there known issues with YCM on systems with the latest version of XCode?