Function mruby_sys::mrb_range_beg_len

pub unsafe extern "C" fn mrb_range_beg_len(
    mrb: *mut mrb_state, 
    range: mrb_value, 
    begp: *mut mrb_int, 
    lenp: *mut mrb_int, 
    len: mrb_int, 
    trunc: mrb_bool
) -> mrb_range_beg_len