[Q] Crash from dereferencing uninitialized V_POINTER Variant (?)

[Ngiong]

Hi.
While trying this library, I found that the pointer Variant can only be initialized using internalSetPtr() method call.
However, it is still possible to create an uninitialized pointer Variant through Variant(Type) constructor which could lead the program to crash when it is dereferenced, as shown in the following code snippet.

#include "var.h"

int main() {
  jvar::Variant variant3(jvar::Variant::Type::V_POINTER); // illegal
  variant3.toJsonString(); // crash
}

Do you think it's worth preventing such crashes by disallowing uninitialized pointer-type Variant creation from the Variant(Type) constructor? I think the library would be safer if the library forces the users to construct such pointer Variant only by calling internalSetPtr(...) explicitly, for example:

#include "var.h"

int main() {
  jvar::Variant variant3; // empty variant first
  variant3.internalSetPtr(...); // initializes pointer variant
  variant3.toJsonString();
}

CMIIW.
Thank you.