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 *:

  cdef struct TakeUntil_0:
    const uint8_t *start;
    uintptr_t len;
    uintptr_t point;

  TakeUntil_0 until_nul(const uint8_t *start, uintptr_t len);