Incomplete type is not allowed (c++ VSCODE)

Question

I have simply created an Array a using container class. However, VScode's IntelliSense is showing an error. Here's an implementation of selection sort.

the contents of the c_cpp_properties.json file are as follows

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/**"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "windowsSdkVersion": "10.0.16299.0",
            "compilerPath": "C:/Program Files (x86)/Microsoft Visual Studio/2017/Community/VC/Tools/MSVC/14.13.26128/bin/Hostx64/x64/cl.exe",
            "cStandard": "c11",
            "cppStandard": "c++17",
            "intelliSenseMode": "msvc-x64"
        }
    ],
    "version": 4
}

the code compiles and runs successfully. How do I fix the incorrect IntelliSense error?

Please include a [MCVE] as *text* in the body of the question. Images of tiny snippets leave out critical context and prevent us from reproducing your error. In this case, knowing whether you actually did `#include ` and have a using statement to avoid the need to `std::` qualify `array` are kind of important. — ShadowRanger, May 21 '19 at 16:07
You probably need `#include ` remember that intellisense is a different compiler than the one the actually compiles your code. — drescherjm, May 21 '19 at 16:07
I have included `bits/stdc++.h` header. let me edit the question. — Ani, May 21 '19 at 16:12
Please read [Why should I not #include ?](https://stackoverflow.com/questions/31816095/why-should-i-not-include-bits-stdc-h) — Some programmer dude, May 21 '19 at 16:17
I understand the consequences of including `bits/stdc++.h`. However, I am getting the same error for the `print` macro I defined. why is that? — Ani, May 21 '19 at 16:19
"I understand the consequences" \*asks about the consequences\* — Lightness Races in Orbit, May 21 '19 at 16:19
I tried to paste your screen snapshot into my IDE, but my IDE could not compile the image. Please edit your post with the text from the IDE (hint: highlight with mouse, copy to clipboard, then paste into your question). — Thomas Matthews, May 21 '19 at 16:20
The compiler that is used for intellisense may not have that header. — drescherjm, May 21 '19 at 16:20
@ThomasMatthews [thief](https://stackoverflow.com/q/5508110/560648) :P — Lightness Races in Orbit, May 21 '19 at 16:21
also [stop `using namespace std`](https://stackoverflow.com/q/1452721/995714) — phuclv, May 21 '19 at 16:33

Lightness Races in Orbit · Accepted Answer · 2019-05-21T16:23:20.963

7

Stop including bits/stdc++.h.

That's an implementation header for some toolchains. It's not for you.

Include the proper header instead:

#include <array>

(It's likely that your Intellisense engine does not have access to this internal header from Linuxy platforms.)

By the way, you're not allowed to choose names that begin with two underscores. So stop that too.

edited May 21 '19 at 16:23

answered May 21 '19 at 16:19

Lightness Races in Orbit

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Yes. The compiler intellisense uses does not have `bits/stdc++.h` and including `array` fixed it. However removing __ from the macro didn't fix the error – Ani May 21 '19 at 16:22
I didn't say removing `__` would fix the error, I said you're not allowed to use it. It could break in the future. Honestly this should have been covered by your book :/ – Lightness Races in Orbit May 21 '19 at 16:23
***However removing __ from the macro didn't fix the error*** That can cause other problems. – drescherjm May 21 '19 at 16:23
@drescherjm yes. It did. Thank you. I will fix it. – Ani May 21 '19 at 16:23

Incomplete type is not allowed (c++ VSCODE)

1 Answers1