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Drop unsafe code from currently unsound function prefix() #30

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May 27, 2019
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Drop unsafe code from currently unsound function prefix() #30

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11 changes: 3 additions & 8 deletions src/lz77/default.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -109,14 +109,9 @@ impl Lz77Encode for DefaultLz77Encoder {
}

#[inline]
fn prefix(buf: &[u8]) -> [u8; 3] {
unsafe {
[
*buf.get_unchecked(0),
*buf.get_unchecked(1),
*buf.get_unchecked(2),
]
}
fn prefix(input_buf: &[u8]) -> [u8; 3] {
let buf: &[u8] = &input_buf[..3]; // perform bounds check once
[buf[0], buf[1], buf[2]]
}

#[inline]
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