from libc.stdint cimport int8_t, int16_t, int32_t, int64_t, intptr_t
from libc.stdint cimport uint8_t, uint16_t, uint32_t, uint64_t, uintptr_t
cdef extern from *:
  ctypedef bint bool
  ctypedef struct va_list

cdef extern from *:

  ctypedef struct Opaque:
    pass

  ctypedef union Normal:
    int32_t x;
    float y;

  ctypedef union NormalWithZST:
    int32_t x;
    float y;

  void root(Opaque *a, Normal b, NormalWithZST c);