This macro takes a call type and function name and returns
the pointer to that function as a Pointer(None).
It must be a :fun non, and it must have a body defined.
The function pointer is suitable for use with FFI functions
that take a callback function pointer. That is, you can define
a :fun non function and pass it into a C function that will
call it later.
This macro takes a call type and function name and returns the pointer to that function as a
Pointer(None).It must be a
:fun non, and it must have a body defined.The function pointer is suitable for use with FFI functions that take a callback function pointer. That is, you can define a
:fun nonfunction and pass it into a C function that will call it later.