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Fix underflow bug in core::str::Searcher::new for haystacks of length < 20

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nham 2014-08-18 17:51:51 -04:00
parent 98ec85f19e
commit a4bbb5bab4
1 changed files with 1 additions and 1 deletions
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2
src/libcore/str.rs
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@ -562,7 +562,7 @@ enum Searcher {
impl Searcher { impl Searcher {
fn new(haystack: &[u8], needle: &[u8]) -> Searcher { fn new(haystack: &[u8], needle: &[u8]) -> Searcher {
// FIXME: Tune this. // FIXME: Tune this.
if needle.len() > haystack.len() - 20 { if needle.len() + 20 > haystack.len() {
Naive(NaiveSearcher::new()) Naive(NaiveSearcher::new())
} else { } else {
let searcher = TwoWaySearcher::new(needle); let searcher = TwoWaySearcher::new(needle);