Function decode_len 

pub const fn decode_len(src_len: usize) -> usize

Returns the decoded length for a given hex string length.

For even-length inputs, returns src_len / 2. For odd-length inputs, returns (src_len + 1) / 2.

Examples

use omp_core::hex::decode_len;
assert_eq!(decode_len(10), 5);
assert_eq!(decode_len(9), 5);
assert_eq!(decode_len(0), 0);