Workaround deliberate overflowing negation in serialize::json.

rust-lang · Apr 17, 2015 · 5e7785c · 5e7785c
1 parent e9f892a
commit 5e7785c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/libserialize/json.rs b/src/libserialize/json.rs
@@ -1540,7 +1540,7 @@ impl<T: Iterator<Item=char>> Parser<T> {
             F64Value(res)
         } else {
             if neg {
-                let res = -(res as i64);
+                let res = (res as i64).wrapping_neg();
 
                 // Make sure we didn't underflow.
                 if res > 0 {