rdrand/
errors.rs

1use core::{
2    fmt::{self, Display, Formatter},
3};
4
5/// Errors in this library
6#[repr(u8)]
7#[derive(Debug, Copy, Clone)]
8pub enum ErrorCode {
9    /// The hardware instruction is not supported
10    UnsupportedInstruction,
11    /// There was a hardware failure
12    HardwareFailure,
13}
14
15impl core::error::Error for ErrorCode {}
16
17impl Display for ErrorCode {
18    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
19        f.write_str(match self {
20            ErrorCode::UnsupportedInstruction => "the hardware instruction is not supported",
21            ErrorCode::HardwareFailure => "hardware generator failure",
22        })
23    }
24}
25
26#[cfg(test)]
27mod test {
28    use super::ErrorCode;
29    use core::error::Error;
30
31    #[test]
32    fn error_code_send() {
33        fn assert_send<T: Send>() {}
34        assert_send::<ErrorCode>();
35    }
36
37    #[test]
38    fn error_code_sync() {
39        fn assert_sync<T: Sync>() {}
40        assert_sync::<ErrorCode>();
41    }
42
43    #[test]
44    fn error_code_copy() {
45        fn assert_copy<T: Copy>() {}
46        assert_copy::<ErrorCode>();
47    }
48
49    #[test]
50    fn error_code_clone() {
51        fn assert_clone<T: Clone>() {}
52        assert_clone::<ErrorCode>();
53    }
54
55    #[test]
56    fn error_code_error() {
57        fn assert_error<T: Error>() {}
58        assert_error::<ErrorCode>();
59    }
60}
rdrand/errors.rs

rdrand/
errors.rs
