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Make ByteNegMutator negate, not flip (#675)

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Change the ByteNegMutator to negate a byte, not flip it. Flipping a byte is already implemented in ByteFlipMutator.

See issue: https://github.com/AFLplusplus/LibAFL/issues/674
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Tobias Scharnowski 2022-07-04 16:37:36 +02:00 committed by GitHub
parent d9a0948377
commit be3d1d588f
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libafl/src/mutators/mutations.rs
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@ -271,7 +271,7 @@ where
Ok(MutationResult::Skipped) Ok(MutationResult::Skipped)
} else { } else {
let byte = state.rand_mut().choose(input.bytes_mut()); let byte = state.rand_mut().choose(input.bytes_mut());
*byte = !*byte; *byte = (-(*byte as i16)) as u8;
Ok(MutationResult::Mutated) Ok(MutationResult::Mutated)
} }
} }