Type Alias libR_sys::R_altstring_Elt_method_t

pub type R_altstring_Elt_method_t = Option<unsafe extern "C" fn(arg1: SEXP, arg2: R_xlen_t) -> SEXP>;

Aliased Type

enum R_altstring_Elt_method_t {
    None,
    Some(unsafe extern "C" fn(_: *mut SEXPREC, _: isize) -> *mut SEXPREC),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut SEXPREC, _: isize) -> *mut SEXPREC)

Some value of type T.