Code Action for missing headers

[karpathyan]

Environment

• OS and Version: Ubuntu 23.04
• VS Code Version: 1.81.0
• C/C++ Extension Version: 1.16.3
• If using SSH remote, specify OS of remote machine: using locally
  

Visual studio code
Version: 1.81.0
Commit: 6445d93c81ebe42c4cbd7a60712e0b17d9463e97
Date: 2023-08-02T12:36:11.334Z
Electron: 22.3.18
ElectronBuildId: 22689846
Chromium: 108.0.5359.215
Node.js: 16.17.1
V8: 10.8.168.25-electron.0
OS: Linux x64 6.2.0-26-generic snap

Bug Summary and Steps to Reproduce

Bug Summary:
When I try to define a variable as std:: vector, the IntelliSense engine is raising the following error:

namespace "std" has no member "vector"C/C++(135)

Steps to reproduce: Probably non reproducible
Expected behavior: std:: should list vector and give and display the doc-strings.

Configuration and Logs

- c_cpp_properties.json

{
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/**"
            ],
            "defines": [],
            "compilerPath": "/usr/bin/gcc"
        }
    ],
    "version": 4
}

• Logs from running C/C++: Log Diagnostics

-------- Diagnostics - 8/4/2023, 1:30:56 PM
Version: 1.16.3
Current Configuration:
{
    "name": "Linux",
    "includePath": [
        "/home/rcheenikundil/Desktop/FinDiff/Mmagsolve/**"
    ],
    "defines": [],
    "compilerPath": "/usr/bin/gcc",
    "compilerPathIsExplicit": true,
    "cStandardIsExplicit": true,
    "cppStandardIsExplicit": true,
    "intelliSenseModeIsExplicit": true,
    "compilerPathInCppPropertiesJson": "/usr/bin/gcc",
    "cStandard": "c11",
    "cppStandard": "c++11",
    "intelliSenseMode": "linux-gcc-x64",
    "mergeConfigurations": false,
    "browse": {
        "path": [
            "${workspaceFolder}/**"
        ],
        "limitSymbolsToIncludedHeaders": true
    }
}
cpptools version (native): 1.16.3.0
Translation Unit Mappings:
[ /home/rcheenikundil/Desktop/FinDiff/Mmagsolve/read_file.cpp ]:
    /home/rcheenikundil/Desktop/FinDiff/Mmagsolve/read_file.cpp
Translation Unit Configurations:
[ /home/rcheenikundil/Desktop/FinDiff/Mmagsolve/read_file.cpp ]:
    Process ID: 13600
    Memory Usage: 631 MB
    Compiler Path: /usr/bin/gcc
    Includes:
        /usr/include/c++/12
        /usr/include/x86_64-linux-gnu/c++/12
        /usr/include/c++/12/backward
        /usr/lib/gcc/x86_64-linux-gnu/12/include
        /usr/local/include
        /usr/include/x86_64-linux-gnu
        /usr/include
    Standard Version: c++11
    IntelliSense Mode: linux-gcc-x64
    Other Flags:
        --g++
        --gnu_version=120200
Total Memory Usage: 631 MB

------- Workspace parsing diagnostics -------
Number of files discovered (not excluded): 37616

• Launch.json

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830>
    "version": "0.2.0",
    "configurations": []
}

• settings.json

        "optional": "cpp",
        "random": "cpp",
        "ratio": "cpp",
        "string_view": "cpp",
        "system_error": "cpp",
        "tuple": "cpp",
        "type_traits": "cpp",
        "utility": "cpp",
        "hash_map": "cpp",
        "hash_set": "cpp",
        "slist": "cpp",
        "fstream": "cpp",
        "future": "cpp",
        "initializer_list": "cpp",
        "iomanip": "cpp",
        "iosfwd": "cpp",
        "iostream": "cpp",
        "istream": "cpp",
        "limits": "cpp",
        "mutex": "cpp",
        "new": "cpp",
        "numbers": "cpp",
        "ostream": "cpp",
        "semaphore": "cpp",
        "shared_mutex": "cpp",
        "sstream": "cpp",
        "stdexcept": "cpp",
        "stop_token": "cpp",
        "streambuf": "cpp",
        "thread": "cpp",
        "cfenv": "cpp",
        "typeindex": "cpp",
        "typeinfo": "cpp",
        "valarray": "cpp",
        "variant": "cpp",
        "__nullptr": "cpp"
    }
}

• tasks.json

{
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: cpp build active file",
            "command": "/usr/bin/cpp",
            "args": [
                "-fdiagnostics-color=always",
                "-g",
                "${file}",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}"
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "Task generated by Debugger."
        }
    ],
    "version": "2.0.0"
}

• output of $ g++ --version

g++ (Ubuntu 12.2.0-17ubuntu1) 12.2.0

• gcc --version

gcc (Ubuntu 12.2.0-17ubuntu1) 12.2.0
- which gcc

/usr/bin/gcc

### Other Extensions

_No response_

### Additional context

This is probably caused by a mistake in defining some of the many variables in the `cpptools` settings. Can anyone please help me identify what is the mistake I made? Thanks. Please let me know if any further files are required. 

[johnwsmithv]

Have you tried:

#include <vector>

That should fix your problem.

[bobbrow]

@johnwsmithv's suggestion should resolve the issue. Though I'd like for us to do what Visual Studio does and offer a "quick fix" for this since we would already know where std::vector is defined.

I'll mark this as a feature request.

[bobbrow]

I found a duplicate issue tracking this feature request. Closing this one. #10791