Hi there, I have a pointer to a struct that looks like this:

// c:
typedef struct
       {
        IntT offset;
        IntT dataType;
        union {
               StringT sdata;
               IntT idata;
               } u;
       } F_TextItemT;

In Ruby I've defined it like this:

 class FTextItemU < FFI::Union
   layout :sdata, :string,
   :idata, :int
 end

 class FTextItemT < FFI::Struct
   layout :offset, :int,
     :dataType, :int,
     :u, FTextItemU
 end

I'm trying to cast the pointer like this:

my_struct = FM::FTexFtItemT.new(p)
puts "test: #{my_struct[:dataType]}"

However, I'm getting a seg fault on the puts statement.

Any ideas of what I'm doing wrong?

Thanks!
Drew