[Swig-user] uint64_t* argument C++ - Lua

[Vedran P. <ved...@gm...>]

Hi all,

I am wrapping C++ for use in Lua. The current obstacle I am facing is
that if I my function expects type like uint64_t* (--pointer), it
doesn't get the right type.

What I do is %include <stdint.i> explicitly inside the
wrapper-generators. At runtime, Lua is not getting 'uint64_t*', but
'number', so the typecheck (2) inside the swig-generated function
throws me out.

Inside the generated wrapper, the variable is  being cast to the right
type (1), so I don't understand why is it throwing me out.

1) This gets generated as functions local variable:
uint64_t *arg8 = (uint64_t *) 0 ;

2) This the check a few lines below
if(!SWIG_isptrtype(L,8)) SWIG_fail_arg("functionName",8,"uint64_t *");

3) This is the call to convert the type
if (!SWIG_IsOK(SWIG_ConvertPtr(L,8,(void**)&arg8,SWIGTYPE_p_unsigned_long_long,0))){
    SWIG_fail_ptr("functionName",8,SWIGTYPE_p_unsigned_long_long);
  }

Can anyone explain what am I doing wrong?

Thanks,
-- 
Vedran Pogacnik