---

yaml
---
r: 68819
b: refs/heads/auto
c: 9b5d523
h: refs/heads/master
i:
  68817: be913b4
  68815: f275228
v: v3

Author: bors

[refs]

@@ -14,6 +14,6 @@ refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0
 refs/tags/release-0.3.1: 495bae036dfe5ec6ceafd3312b4dca48741e845b
 refs/tags/release-0.4: e828ea2080499553b97dfe33b3f4d472b4562ad7
 refs/tags/release-0.5: 7e3bcfbf21278251ee936ad53e92e9b719702d73
-refs/heads/auto: e7040e8a249a8cd53931603b89e0d12b0b854398
+refs/heads/auto: 9b5d52312622fb301d9e102b3eeca5a7afcdeb9b
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c

branches/auto/src/libstd/repr.rs

@@ -206,11 +206,13 @@ impl ReprVisitor {
                            inner: *TyDesc)
                            -> bool {
         let mut p = ptr;
-        let end = ptr::offset(p, len);
         let (sz, al) = unsafe { ((*inner).size, (*inner).align) };
         self.writer.write_char('[');
         let mut first = true;
-        while (p as uint) < (end as uint) {
+        let mut left = len;
+        // unit structs have 0 size, and don't loop forever.
+        let dec = if sz == 0 {1} else {sz};
+        while left > 0 {
             if first {
                 first = false;
             } else {
@@ -219,6 +221,7 @@ impl ReprVisitor {
             self.write_mut_qualifier(mtbl);
             self.visit_ptr_inner(p as *c_void, inner);
             p = align(ptr::offset(p, sz) as uint, al) as *u8;
+            left -= dec;
         }
         self.writer.write_char(']');
         true
@@ -635,4 +638,7 @@ fn test_repr() {
                "(10, ~\"hello\")");
     exact_test(&(10_u64, ~"hello"),
                "(10, ~\"hello\")");
+
+    struct Foo;
+    exact_test(&(~[Foo, Foo, Foo]), "~[{}, {}, {}]");
 }