identifier "cout" is undefined

[puidenz]

OS: Windows 10 1709
VScode version: VSCode-win32-x64-1.18.1
C/C++ extension version: 0.14.5
compiler: mingw-w64 x86_64-7.2.0

Originally, I get this error message: cannot open source file "bits/c++config.h" (dependency of "iostream")
Then, I read some issue and use command gcc -v -E -x c++ - to get all possible include path and past them all to "includePath" in c_cpp_properties.json.
But now, I get another error:

identifier "cout" is undefined

How can I solve this ? preparing environment of VScode has taken me too much time :(
my c_cpp_properties.json file:

{
    "configurations": [
        {
            "name": "Mac",
            "includePath": [
                "/usr/include",
                "/usr/local/include",
                "${workspaceRoot}"
            ],
            "defines": [],
            "intelliSenseMode": "clang-x64",
            "browse": {
                "path": [
                    "/usr/include",
                    "/usr/local/include",
                    "${workspaceRoot}"
                ],
                "limitSymbolsToIncludedHeaders": true,
                "databaseFilename": ""
            },
            "macFrameworkPath": [
                "/System/Library/Frameworks",
                "/Library/Frameworks"
            ]
        },
        {
            "name": "Linux",
            "includePath": [
                "/usr/include",
                "/usr/local/include",
                "${workspaceRoot}"
            ],
            "defines": [],
            "intelliSenseMode": "clang-x64",
            "browse": {
                "path": [
                    "/usr/include",
                    "/usr/local/include",
                    "${workspaceRoot}"
                ],
                "limitSymbolsToIncludedHeaders": true,
                "databaseFilename": ""
            }
        },
        {
            "name": "Win64",
            "includePath": [
                "${workspaceRoot}",
                "C:/Program Files/mingw-w64/x86_64-7.2.0-posix-seh-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/include/c++",
                "C:/Program Files/mingw-w64/x86_64-7.2.0-posix-seh-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/include/c++/x86_64-w64-mingw32",
                "C:/Program Files/mingw-w64/x86_64-7.2.0-posix-seh-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/include/c++/backward",
                "C:/Program Files/mingw-w64/x86_64-7.2.0-posix-seh-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/include",
                "C:/Program Files/mingw-w64/x86_64-7.2.0-posix-seh-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/include-fixed",
                "C:/Program Files/mingw-w64/x86_64-7.2.0-posix-seh-rt_v5-rev1/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/../../../../x86_64-w64-mingw32/include"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE"
            ],
            "intelliSenseMode": "msvc-x64",
            "browse": {
                "path": [
                    "${workspaceRoot}",
                    "C:/Program Files/mingw-w64/x86_64-7.2.0-posix-seh-rt_v5-rev1/mingw64/x86_64-w64-mingw32/include",
                    "C:/Program Files/mingw-w64/x86_64-7.2.0-posix-seh-rt_v5-rev1/mingw64"
                ],
                "limitSymbolsToIncludedHeaders": true,
                "databaseFilename": ""
            }
        }
    ],
    "version": 3
}

[sean-mcmanus]

Your Win64 configuration setting don't appear to be correct for mingw on Windows. See https://github.com/Microsoft/vscode-cpptools/blob/master/Documentation/LanguageServer/MinGW.md . Your intelliSenseMode should be clang-x64 and you're missing some defines. Are you able to get it to work now?

[puidenz]

First, very sorry for response this so late. I am so busy in this period that I forgot this issue :(
After some correction, I get a new c_cpp_properties.json. But still get same problem, "identifier cin is undefined". And other object like vector also has same problem.
I have try to fix my properties document as same as possible to the json document you posted me.
If I do anything wrong, please directly point out.
Thank you very much.

c_cpp_properties.zip

[sean-mcmanus]

It could be due to some missing defines. Our next 0.16.0 release might fix this after you set the new compilerPath property.

[sean-mcmanus]

Can you try the cpptools-win32.vsix at https://github.com/Microsoft/vscode-cpptools/releases/tag/v0.16.0-insiders2 and set your compilerPath to see if that fixes it?

[puidenz]

I updated the cpptools to latest vesion 0.16.1 ,reinstalled my mingw-64 and reset my includePath according:
https://github.com/Microsoft/vscode-cpptools/blob/master/Documentation/LanguageServer/MinGW.md

Finally, my vscode run perfectly. Thanks God and you.
It took me so long to make it work.
Attached file is my latest c_cpp_properites.json file, hope this can help you to improve this project.
c_cpp_properties.zip

[sean-mcmanus]

Oh, you may also want to consider setting the compilerPath to get the correct compiler defines for you compiler. With the c_cpp_properties.json provided, it is not expected that 0.16.0-1 would have fixed anything.

[HunderlineK]

@sean-mcmanus The documentation on VS Code website needs to be corrected; that is why some people probably have a problem with this:
https://code.visualstudio.com/docs/languages/cpp#_getting-started

{
    "name": "Win32",
    "includePath": [
        "${workspaceFolder}"
    ],
    "defines": [
        "_DEBUG",
        "UNICODE"
    ],
    "intelliSenseMode": "msvc-x64",
    "browse": {
        "path": [
            "${workspaceFolder}",
            "C:\\MinGW\\lib\\gcc\\mingw32\\6.3.0\\include\\c++"
        ],
        "limitSymbolsToIncludedHeaders": true,
        "databaseFilename": ""
    }
}

[sean-mcmanus]

@HunderlineK Oh, that's odd. That doc example would have never worked correctly, even without the new compilerPath. I don't think that example c_cpp_properties.json was intended to be used as an example of configuring IntelliSense with a mingw project -- looks like just an example of adding a path to the browse.path. Those docs were last updated 8 months ago and the "Update browse.path setting" UI doesn't even exist anymore. Hopefully, people don't follow those docs too closely :). I'll try to get it updated/fixed, but the person who normally updates the doc is OOF this week.

[sean-mcmanus]

@HunderlineK Docs have been updated.

[vikrantsingh47]

This issue is still not fixed in vscode