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Use Vec::with_capacity() to allocate new indices vector

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str4d 2018-04-12 17:47:38 -06:00
parent b693e56ead
commit 8b8ece69cd
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src/equihash.rs
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@ -62,7 +62,7 @@ impl Node {
.skip(trim) .skip(trim)
.map(|(a, b)| a ^ b) .map(|(a, b)| a ^ b)
.collect(); .collect();
let mut indices = Vec::new(); let mut indices = Vec::with_capacity(a.indices.len() + b.indices.len());
if a.indices_before(b) { if a.indices_before(b) {
indices.extend(a.indices.iter()); indices.extend(a.indices.iter());
indices.extend(b.indices.iter()); indices.extend(b.indices.iter());