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I recently installed VSCode for my C++ projects. That's a great tool, very light, easy to use and no trouble to install C++ dedicated extensions. But I've realized after checking some videos/documentation about VSCode, IntelliSense is not fully working in my environment. So far, most IntelliSense features I've used work well...except Quick Info feature to show accompanying documentation for a method (signature help). As I can see from C++ tutorials/videos using VSCode, I should have a Quick Info blue icon when writing a method that expands to the side parameter info.

In my case there is no Quick Info blue icon, there is just the parameters name or short info. Im figuring out since several days why my VSCode is not able to provide the Signature help feature. I also tried with C#, but I get same behavior...

So Im heading to the StackOverflow community to get help. I've seen so many things about VScode on the Web but nothing concerning my issue.

My configuration:

  • MacBookPro - MacOS Catalina V10.15.4 (OS: Darwin x64 19.4.0)
  • VSCode Version: 1.45.1
  • C++ Microsoft (ms-vscode.cpptools) extension
  • C++ Intellisense (austin.code-gnu-global) extension

UserSettings:

"editor.detectIndentation": false,
"editor.multiCursorModifier": "alt",
"workbench.iconTheme": "vscode-icons",
"workbench.view.alwaysShowHeaderActions": true,
"C_Cpp.updateChannel": "Insiders",
"editor.insertSpaces": false,
"editor.minimap.maxColumn": 100,
"editor.minimap.size": "fill",
"editor.tabSize": 4,
"task.saveBeforeRun": "never",
"window.closeWhenEmpty": true,
"workbench.colorTheme": "Default Light+",
"workbench.editor.closeEmptyGroups": false,
"workbench.editor.showTabs": true,
"workbench.settings.editor": "json",
"workbench.settings.openDefaultSettings": true,
"workbench.settings.useSplitJSON": true

Example with pictures:

My working Environment without quick info blue icon

C++ example with quick info blue icon (source : https://www.youtube.com/watch?v=3Tc6f3nhCxo)

Thank you in advance for your help!

For more details, here are some c++ IntelliSense Settings

> "C_Cpp.autocomplete": "Default",
  "C_Cpp.default.intelliSenseMode": "",
  "C_Cpp.intelliSenseCachePath": "",
  "C_Cpp.intelliSenseEngine": "Default",
  "C_Cpp.intelliSenseEngineFallback": "Disabled"
Altair8800
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  • Have you checked that the intellisense engine is set to default and not tag parser? – Ben May 23 '20 at 07:07
  • @Ben : Yes, Cpp engine is currently set to "default" -> "C_Cpp.intelliSenseEngine": "Default" – Altair8800 May 23 '20 at 08:51
  • I had similar issue, But when I closed all instances of my Visual Studio Code and reopened the visual studio code, methods quick info started working fine in IntelliSense. – Praveen Mitta Aug 24 '20 at 17:07

3 Answers3

1

I finally solved my Intellisense issue on my VS code configuration!

Now "Quick Info" feature is shown when I start typing functions, methods or whatever.

It has been fixed after installing xcode macOS application and updating gcc version by Homebrew (see attached pictures).

gcc version 10.2.0 on Homebrew

my cpp configuration (c_cpp_properties.json)

Hope it may help other people that have same Intellisense issue to show accompanying documentation for a method (signature help).

Altair8800
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1

Faced the same problem getting VS Code C++ IntelliSense Quick Info to work on Mac M1 (arm64) without having to install Xcode for personal reasons (large and not needed).

Simply using the gcc provided by homebrew did the trick.

Make sure to install Homebrew first if not installed

Then install gcc

brew install gcc

Open your c_cpp_properties.json file in .vscode directory and replace the compilerPath value with the one from homebrew.

"compilerPath": "/opt/homebrew/Cellar/gcc/11.2.0/bin/g++-11"

In my case this is gcc-11 with version 11.2.0. Yours may be different so confirm from the brew install gcc output or confirm manually.

(This solution should work for MacOS and isn't limited to just the M1.)

Fortune
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{
"configurations": [
    {
        "name": "Win32",
        "includePath": [
           "C:\\msys64\\mingw64\\include"
        ],
        "defines": [
            "_DEBUG",
            "UNICODE",
            "_UNICODE"
        ],
        "windowsSdkVersion": "10.0.22000.0",
        "compilerPath": "C:\\msys64\\mingw64",
        "cStandard": "c17",
        "cppStandard": "c++17",
        "intelliSenseMode": "${default}"
    }
],
"version": 4

}

  • I've changed my includePath and compilerPath according to my source of installation. where in my case, it is from MSYS - as referred here by vs_code team.
Sangamesh Kyatappanavar
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