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Use iterators for num_diff_bits

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Signed-off-by: Joe Richey <joerichey@google.com>
This commit is contained in:
Joe Richey 2022-10-22 13:52:42 -07:00
parent c83edb650b
commit b893cb9c77
1 changed files with 4 additions and 5 deletions
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9
tests/common/mod.rs
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@ -16,11 +16,10 @@ fn test_zero() {
#[cfg(not(feature = "custom"))]
fn num_diff_bits(s1: &[u8], s2: &[u8]) -> usize {
assert_eq!(s1.len(), s2.len());
let mut n = 0;
for i in 0..s1.len() {
n += (s1[i] ^ s2[i]).count_ones() as usize;
}
n
s1.iter()
.zip(s2.iter())
.map(|(a, b)| (a ^ b).count_ones() as usize)
.sum()
}
// Tests the quality of calling getrandom on two large buffers