Function t_cplx_get_region 

pub unsafe extern "C-unwind" fn t_cplx_get_region<T: AltComplex>(
    x: SEXP,
    i: R_xlen_t,
    n: R_xlen_t,
    out: *mut Rcomplex,
) -> R_xlen_t

Trampoline for complex Get_region method.

Safety

x must be a valid ALTREP CPLXSXP and out a valid buffer of at least n elements.