[racket] FFI Pointer to Pointer

Freezerburn wrote:
> [...]
> I know I can define a _my_c_struct-pointer, but
> how do I make a pointer to that pointer to pass to the C function?
> [...]

Hello,

you probably want an output parameter created using a

  (_ptr o _my_c_struct-pointer)

argument type specification in the binding of the function.

If necessary, you can also create a block of memory containing a pointer
using

  (malloc _my_c_struct-pointer)

and pass the returned pointer around, but that entails more manual
management overhead.

Ciao,
Thomas


-- 
When C++ is your hammer, every problem looks like your thumb.