Made arrays never encode their length

[VictorKoenders]

Closes #613

Turns out serde never encodes a fixed array length with 32 elements or less. If an array is 33 elements or more, it silently falls back to the &[T] implementation (which does encode the length). Our test cases were only tested with large arrays.

Because the config flags write_fixed_array_length and skip_fixed_array_length were based on a wrong assumption on how serde/bincode 1 worked, these flags have been removed. They may be re-added in the future.

[codecov[bot]]

Codecov Report

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Additional details and impacted files

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[TommyLike]

@VictorKoenders hello, I use bincode in my project as below:

 signed.write_all(&bincode::encode_to_vec(
            &sig_struct,
            config::standard()
                .skip_fixed_array_length()
                .with_fixed_int_encoding()
                .with_big_endian(),
        )?)?;

it works well for the version of bincode = "2.0.0-rc.2" but when upgrade into rc.3 I found the skip_fixed_array_length has been removed, so what should I do for now, How to remove the length when serializing?

[VictorKoenders]

@TommyLike currently there is no such option. Bincode 1 and 2 should work as you'd expect without the configuration. Is there a particular issue you're running into?

[TommyLike]

@TommyLike currently there is no such option. Bincode 1 and 2 should work as you'd expect without the configuration. Is there a particular issue you're running into?

No, I realized it works as I expected, thanks!