System information (version)

• OpenCV => 4.5.3

Detailed description

Take, for example, cv::Point_.
There are user provided copy and move constructors, copy assignment and move assignment operators defined:

Because of that, the type is not trivially copyable. For example, that means you can't use std::memcopy or std::atomic with the type.

The fix for that would be to remove those constructors and operators altogether, since the compiler would generate the identical implicitly-defined ones.

Steps to reproduce

#include <opencv2/core/types.hpp>
#include <type_traits>
#include <iostream>

int main() {
    std::cout << std::is_trivially_copyable_v<cv::Point>;  // => 0
}

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues,
  forum.opencv.org, Stack Overflow, etc and have not found solution
• I updated to latest OpenCV version and the issue is still there
• There is reproducer code and related data files: videos, images, onnx, etc