# array-bytes
### A Collection of Array/Bytes/Hex Utilities.
[](https://www.gnu.org/licenses/gpl-3.0)
[](https://github.com/hack-ink/array-bytes/actions/workflows/checks.yml)
[](https://docs.rs/array-bytes)
[](https://github.com/hack-ink/array-bytes/tags)
[](https://github.com/hack-ink/array-bytes)
[](https://github.com/hack-ink/array-bytes)
Abilities
TryFromHex trait
- Convert
Hex to Num
- type
AsRef<str> -> isize
- type
AsRef<str> -> i8
- type
AsRef<str> -> i16
- type
AsRef<str> -> i32
- type
AsRef<str> -> i64
- type
AsRef<str> -> i128
- type
AsRef<str> -> usize
- type
AsRef<str> -> u8
- type
AsRef<str> -> u16
- type
AsRef<str> -> u32
- type
AsRef<str> -> u64
- type
AsRef<str> -> u128
bytes prefixed functions
- Convert
Bytes to Hex
- type
AsRef<[u8]> -> String
hex prefixed functions
- Convert
HexBytes to Hex
- type
&[u8] -> &str
- e.g.
b"0x..." -> "0x..."
- Transform
Hex from Array
- Convert
Hex to Bytes
- type
AsRef<str> -> Vec<u8>
- Convert
Hex to Slice
- Transform
Hex to T
- type
AsRef<str> -> T
- e.g.
"0x..." -> [u8; 20] -> H160
slice prefixed functions
- Build fixed length
Array from Slice
- Transform
Slice to G
- type
&[T] -> G
- e.g.
&[0_u8, ...] -> [u8; 20] -> H160
vec prefixed functions
- Build fixed length
Array from Vec
- Transform
Vec to G
- type
Vec<T> -> G
- e.g.
vec![0_u8, ...] -> [u8; 20] -> H160
Serde support (require feature serde)
#[serde(deserialize_with = "array_bytes::hex_deserialize_n_into")]
- type
S -> T
- e.g.
"0x..." -> H160
#[serde(deserialize_with = "array_bytes::de_hex2num")]
- type
S -> Num
- e.g.
"0xA" -> 10_u32
#[serde(deserialize_with = "array_bytes::de_hex2bytes")]
- type
S -> Vec<u8>
- e.g.
"0x00" -> vec![0_u8]
Benchmark results
Friday, November 25th, 2022
```rs
array_bytes::bytes2hex time: [38.078 µs 38.126 µs 38.177 µs]
change: [-0.5147% -0.2140% +0.1154%] (p = 0.18 > 0.05)
No change in performance detected.
Found 14 outliers among 100 measurements (14.00%)
1 (1.00%) low severe
2 (2.00%) high mild
11 (11.00%) high severe
hex::encode time: [136.19 µs 136.65 µs 137.14 µs]
change: [-0.3002% -0.0359% +0.2459%] (p = 0.81 > 0.05)
No change in performance detected.
Found 9 outliers among 100 measurements (9.00%)
2 (2.00%) low mild
6 (6.00%) high mild
1 (1.00%) high severe
rustc_hex::to_hex time: [79.155 µs 79.268 µs 79.398 µs]
change: [-2.9058% -1.8791% -0.9713%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 5 outliers among 100 measurements (5.00%)
4 (4.00%) high mild
1 (1.00%) high severe
faster_hex::hex_string time: [18.483 µs 18.524 µs 18.565 µs]
change: [-0.6456% -0.3159% -0.0313%] (p = 0.04 < 0.05)
Change within noise threshold.
Found 11 outliers among 100 measurements (11.00%)
1 (1.00%) low mild
8 (8.00%) high mild
2 (2.00%) high severe
faster_hex::hex_encode_fallback
time: [18.497 µs 18.528 µs 18.561 µs]
change: [-11.257% -4.9349% -0.9424%] (p = 0.08 > 0.05)
No change in performance detected.
Found 8 outliers among 100 measurements (8.00%)
6 (6.00%) high mild
2 (2.00%) high severe
array_bytes::hex2bytes time: [224.34 µs 224.59 µs 224.86 µs]
change: [-1.7703% -1.2368% -0.7744%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 4 outliers among 100 measurements (4.00%)
3 (3.00%) high mild
1 (1.00%) high severe
array_bytes::hex2bytes_unchecked
time: [222.78 µs 223.07 µs 223.39 µs]
change: [-0.5184% -0.1710% +0.1429%] (p = 0.32 > 0.05)
No change in performance detected.
Found 9 outliers among 100 measurements (9.00%)
7 (7.00%) high mild
2 (2.00%) high severe
array_bytes::hex2slice time: [211.37 µs 211.49 µs 211.62 µs]
change: [-3.1739% -2.1127% -1.2688%] (p = 0.00 < 0.05)
Performance has improved.
Found 6 outliers among 100 measurements (6.00%)
2 (2.00%) low severe
4 (4.00%) high severe
array_bytes::hex2slice_unchecked
time: [212.00 µs 212.34 µs 212.71 µs]
change: [-0.8427% -0.5482% -0.2810%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 9 outliers among 100 measurements (9.00%)
1 (1.00%) low mild
6 (6.00%) high mild
2 (2.00%) high severe
hex::decode time: [244.37 µs 244.78 µs 245.25 µs]
change: [-1.4130% -1.0496% -0.7133%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 8 outliers among 100 measurements (8.00%)
5 (5.00%) high mild
3 (3.00%) high severe
hex::decode_to_slice time: [166.67 µs 166.90 µs 167.16 µs]
change: [+0.1484% +0.3293% +0.5160%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 3 outliers among 100 measurements (3.00%)
3 (3.00%) high mild
rustc_hex::from_hex time: [176.56 µs 177.79 µs 179.13 µs]
change: [+1.4009% +2.5404% +3.5866%] (p = 0.00 < 0.05)
Performance has regressed.
Found 5 outliers among 100 measurements (5.00%)
2 (2.00%) low mild
1 (1.00%) high mild
2 (2.00%) high severe
faster_hex::hex_decode time: [39.127 µs 39.342 µs 39.582 µs]
change: [-0.0442% +0.3160% +0.6546%] (p = 0.08 > 0.05)
No change in performance detected.
Found 18 outliers among 100 measurements (18.00%)
3 (3.00%) low severe
8 (8.00%) high mild
7 (7.00%) high severe
faster_hex::hex_decode_unchecked
time: [16.429 µs 16.479 µs 16.538 µs]
change: [+0.5738% +0.9176% +1.3113%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 14 outliers among 100 measurements (14.00%)
6 (6.00%) high mild
8 (8.00%) high severe
faster_hex::hex_decode_fallback
time: [16.422 µs 16.440 µs 16.460 µs]
change: [+0.3595% +0.6397% +0.9141%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 5 outliers among 100 measurements (5.00%)
1 (1.00%) high mild
4 (4.00%) high severe
```