Function data_encoding::decode::decode_mut

pub fn decode_mut<B: Base>(base: &B, input: &[u8], output: &mut [u8]) -> Result<usize, Error>

Generic decoding function without allocation.

This function takes a base implementation, a shared input slice, a mutable output slice, and decodes the input slice to the output slice. It returns the length of the decoded data which may be slightly smaller than the output length when input is padded.

Correctness

The base must satisfy the Base invariants.

Failures

Decoding may fail in the circumstances defined by Error.

Panics

Panics if output.len() != decode_len(input.len()). May also panic if base does not satisfy the Base invariants.