#pragma unmanaged
struct __declspec(dllexport) point
{
double x, y, z;
point(double xv, double yv, double zv) :x(xv), y(yv), z(zv){}
double getX()const { return x; }
double getY()const { return y; }
double getZ()const { return z; }
~point()
{
std::cout << "~point()" << std::endl;;
}
};
#pragma managed
ref struct pointWraper
{
private:
point* dp;
public:
pointWraper(double x,double y,double z)
{
dp = new point(x,y,z);
}
double getX() { return dp->getX(); }
double getY() { return dp->getY(); }
double getZ() { return dp->getZ(); }
~pointWraper()
{
this->!pointWraper();
}
!pointWraper()
{
if (dp)
delete dp;
}
};
要及時釋放,對託管類使用delete,會調用析構,析構會調用終結器。GC則不會再調用終結器,萬一忘記delete,GC則在自動回收垃圾的時候會調用終結器。也會釋放非託管資源。