these should take borrowed pointers

2 files changed, 2 insertions, 2 deletions

diff --git a/rosalind/dna.rs b/rosalind/dna.rs
index a2ee73d..7279c36 100644
--- a/rosalind/dna.rs
+++ b/rosalind/dna.rs
@@ -1,6 +1,6 @@
 use str = core::str;
 
-pure fn gc_content(dna: ~str) -> float {
+pure fn gc_content(dna: &str) -> float {
     let mut content = 0;
     for str::each_char(dna) |ch| {
         match ch {
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) {