Function hex_string 

pub fn hex_string(src: &[u8]) -> String

Available on crate feature alloc only.

Encodes src as an owned lowercase hexadecimal string.

Each byte produces two ASCII digits, including leading zeroes. The result has length src.len() * 2, contains no prefix or separators, and owns its storage independently of src. Empty input produces an empty string.

Available with the alloc feature. To reuse a string’s capacity, use hex_append. For caller-provided storage, use hex_encode.

Panics

Panics if the encoded length cannot be represented or exceeds isize::MAX bytes. Allocation failure follows the allocator’s error handling; it is not returned as an Error.

Examples

use faster_hex::hex_string;

assert_eq!(hex_string(&[0, 0xab, 0xff]), "00abff");
assert_eq!(hex_string(&[]), "");