error.rs at faiss-rs

error.rs

#[derive(Debug, Clone, PartialEq)]
pub struct NativeError {
    code: c_int,
    msg: String,
}

impl NativeError {
    pub fn from_last_error(code: c_int) -> Self {
        unsafe {
            let e: *const _ = faiss_get_last_error();
            assert!(!e.is_null());
            let cstr = CStr::from_ptr(e);
            let msg: String = cstr.to_string_lossy().into_owned();
            NativeError { code, msg }
        }
    }
}