Compilation issue (vs2019 C++)

Question

Compilation issue (vs2019 C++)

cyl cyl 1

Compiling the program in vs2019 failed with platform toolset v142, and then successfully compiled with platform toolset v140 when class variables vector array and atomic var are involved.

e.g.
std::vector<int> m_vN[10];
std::atomic<bool> m_vB;

error code
C2711
C3821

RLWA32 52,256 Reputation points

2022-12-30T09:59:37.24+00:00

Compiler error codes C2711 and C3821 relate to the use of managed code.

Provide sufficient additional information about your code to enable the community to reproduce the error on our own systems.
YujianYao-MSFT 4,296 Reputation points Microsoft External Staff

2023-01-02T05:29:29.853+00:00

Hi @cyl cyl ,

The code you provided doesn't cause the error, could you please provide a minimal executable example that reproduces the problem?

In addition, regarding C2711 and C3821, you can refer to the solution in the document.
YujianYao-MSFT 4,296 Reputation points Microsoft External Staff

2023-03-21T08:12:21.0033333+00:00

Hi cyl cyl

I suggest you to turn on the /clr option in the project properties, you could refer to this picture to turn it on.