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-rw-r--r--rosalind/str.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/rosalind/str.rs b/rosalind/str.rs
index 0fac1cd..7837055 100644
--- a/rosalind/str.rs
+++ b/rosalind/str.rs
@@ -10,7 +10,7 @@ fn reverse(s: &str) -> ~str {
r
}
-pure fn hamming(string1: ~str, string2: ~str) -> int {
+pure fn hamming(string1: &str, string2: &str) -> int {
let mut hamming = 0;
for str::each_chari(string1) |i, ch| {
if ch != str::char_at(string2, i) {