pub fn hex_string_upper(src: &[u8]) -> StringAvailable on crate feature
alloc only.Expand description
Encodes src as an owned uppercase hexadecimal string.
This is the uppercase counterpart of hex_string: each byte produces two
ASCII digits without a prefix or separators. Available with alloc.
§Panics
Panics on the same capacity overflows as hex_string. Allocation failure
follows the allocator’s error handling.
§Examples
assert_eq!(faster_hex::hex_string_upper(&[0, 0xab, 0xff]), "00ABFF");