Function const_base::decoded_len [−][src]
pub const fn decoded_len(encoded: &[u8], config: Config) -> usize
Expand description
Computes the length of the string obtained from decoding encoded
with the encoding determined by config
.
Example
Base 64
use const_base::{Config, decoded_len}; const BASE64: &[usize] = &[ // this crate allows an arbitrary amount of trailing `=` in the decoded string. decoded_len(b"fooooo=======", Config::B64), decoded_len(b"foo=", Config::B64), decoded_len(b"fo==", Config::B64), ]; assert_eq!(BASE64, [4, 2, 1]);
Base 32
use const_base::{Config, decoded_len}; const BASE32: &[usize] = &[ // this crate allows an arbitrary amount of trailing `=` in the decoded string. decoded_len(b"foooooo=======", Config::B32), decoded_len(b"foooo=", Config::B32), decoded_len(b"fooo=", Config::B32), decoded_len(b"fo==", Config::B32), ]; assert_eq!(BASE32, [4, 3, 2, 1]);
Hexadecimal
use const_base::{Config, decoded_len}; const BASE32: &[usize] = &[ decoded_len(b"F000B1E5", Config::HEX), decoded_len(b"F000B1", Config::HEX), decoded_len(b"F00B", Config::HEX), decoded_len(b"F0", Config::HEX), ]; assert_eq!(BASE32, [4, 3, 2, 1]);