more miscellaneous fixes

1 files changed, 2 insertions, 1 deletions

diff --git a/src/set.hff b/src/set.hff
index 6f472b3..431ef93 100644
--- a/src/set.hff
+++ b/src/set.hff
@@ -39,7 +39,7 @@ struct Set<T, Traits> {
       }
 
       let h u32 = Traits:hash(x);
-      let i = h & (self.N - 1) & (self.N - 1);
+      let i = h & (self.N - 1);
       let n = 0;
       for ;; {
          if self.set[i] == 0 {
@@ -59,6 +59,7 @@ struct Set<T, Traits> {
    }
    
    fn contains(self *Set, x T) bool {
+      if self.N == 0 { return #f; }
       let h u32 = Traits:hash(x);
       let i = h & (self.N - 1);
       for ;; {