vscode C++ 自动补全失效

设置搜索这几个，并设置为对应值。

 

如果没解决，可能是clangd的问题。

禁用clangd，然后去看看c_cpp_properties.json。

看complierPath是不是clang。 如果是，改成g++/gcc。

再看一下intelliSenseMode是不是clang。如果是，改为default。

 

linux下c_cpp_properties.json的配置

1.  
   {
2.  
   "configurations": [
3.  
   {
4.  
   "name": "Linux",
5.  
   "includePath": [
6.  
   "/usr/include",
7.  
   "/usr/local/include",
8.  
   "${workspaceFolder}/**"
9.  
   ],
10.  
    "defines": [],
11.  
    "compilerPath": "/usr/bin/g++",
12.  
    "cStandard": "c23",
13.  
    "cppStandard": "c++20",
14.  
    "browse":{"path":[
15.  
    "/usr/include",
16.  
    "/usr/local/include",
17.  
    "${workspaceFolder}/**"
18.  
    ]
19.  
    },
20.  
    "intelliSenseMode": "${default}"
21.  
    }
22.  
    ],
23.  
    "version": 4
24.  
    }

 

 

windows下c_cpp_properties.json的配置

1.  
   {
2.  
   "configurations": [
3.  
   {
4.  
   "name": "Win32",
5.  
   "includePath": [
6.  
   "D:/programme/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/12.2.0/include/c++",
7.  
   "D:/programme/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/12.2.0/include/c++/x86_64-w64-mingw32",
8.  
   "D:/programme/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/12.2.0/include/c++/backward",
9.  
   "D:/programme/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/12.2.0/include",
10.  
    "D:/programme/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/12.2.0/include-fixed",
11.  
    "D:/programme/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/12.2.0/../../../../x86_64-w64-mingw32/include"
12.  
    ],
13.  
    "defines": [
14.  
    "_DEBUG",
15.  
    "UNICODE",
16.  
    "_UNICODE"
17.  
    ],
18.  
    "compilerPath": "D:\\programme\\mingw64\\bin\\g++.exe",
19.  
    "cStandard": "c23",
20.  
    "cppStandard": "c++23",
21.  
    "intelliSenseMode": "windows-gcc-x64"
22.  
    },
23.  
    "version": 4
24.  
    }

 

 

如果嫌vscode自带的补全太慢，可以更改以下设置（默认为10，建议改到5以下）

 

参考文章：

VSCode C/C++无法跳转到定义、自动补全、悬停提示功能

VSCode代码自动补全太慢的问题

vscode解决自动补全突然失效的问题(c++)