From 6432599c5d7f2646c0f91c6badef5496f2fbc119 Mon Sep 17 00:00:00 2001
From: Brian Anderson <andersrb@gmail.com>
Date: Fri, 20 May 2011 20:18:47 -0400
Subject: [PATCH] stdlib: Use if/alt expressions in std::bitv

---
 src/lib/bitv.rs | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/src/lib/bitv.rs b/src/lib/bitv.rs
index 90bbde1c619..7e8323f9ef5 100644
--- a/src/lib/bitv.rs
+++ b/src/lib/bitv.rs
@@ -32,12 +32,11 @@ fn uint_bits() -> uint {
 }
 
 fn create(uint nbits, bool init) -> t {
-    auto elt;
-    if (init) {
-        elt = ~0u;
+    auto elt = if (init) {
+        ~0u
     } else {
-        elt = 0u;
-    }
+        0u
+    };
 
     auto storage = vec::init_elt_mut[uint](elt, nbits / uint_bits() + 1u);
     ret rec(storage = storage, nbits = nbits);
@@ -161,11 +160,11 @@ fn set(&t v, uint i, bool x) {
     auto b = i % bits;
     auto w0 = v.storage.(w);
     auto flag = 1u << b;
-    if (x) {
-        v.storage.(w) = v.storage.(w) | flag;
+    v.storage.(w) = if (x) {
+        v.storage.(w) | flag
     } else {
-        v.storage.(w) = v.storage.(w) & ~flag;
-    }
+        v.storage.(w) & ~flag
+    };
 }
 
 /* true if all bits are 1 */
@@ -191,11 +190,11 @@ fn is_false(&t v) -> bool {
 }
 
 fn init_to_vec(t v, uint i) -> uint {
-    if (get(v, i)) {
-        ret 1u;
+    ret if (get(v, i)) {
+        1u
     } else {
-        ret 0u;
-    }
+        0u
+    };
 }
 
 fn to_vec(&t v) -> vec[uint] {