这里***的解决方案是用C语言编写包装函数，该函数仅限于非C ++类。通过PInvoke层[1]，非平凡的C ++类基本上是不可拆的。而是让包装函数使用更传统的C签名，该签名易于P

The best solution here is to write a wrapper function in C which is limited to non-C++ classes. Non-trivial C++ classes are essentially unmarshable via the PInvoke layer [1]. Instead have the wrapper function use a more traditional C signature which is easy to PInvoke against

void findNeigborsWrapper(
  Point p,
  double maxDist, 
  Point** ppNeighbors,
  size_t* pNeighborsLength)

[1]是的，在某些情况下您可以摆脱它，但这是例外，而不是规则。

[1] Yes there are certain cases where you can get away with it but that's the exception and not the rule.