commit 5a1d875c2362c043871d69ecc25a411ff3e6ccc4
author Andreas Gampe <agampe@google.com> Tue Jul 10 19:25:14 2018 -0700
committer android-build-merger <android-build-merger@google.com> Tue Jul 10 19:25:14 2018 -0700
tree 513d1aae4a29f54dc5d8b825ba1e1cc2dc4a5dee
parent 6e64dfe774371286332ee0d2a51790fc5c2d8dd7
parent a9631050dc446bf1e5613f1055f2dcd3255c44dd

Merge "Otapreopt: Add missing function" am: d760eb8662 am: 70564d5736
am: a9631050dc

Change-Id: I6ea81de874c4c5dbccdc9d0503f67c7bbb5adffd

cmds/installd/otapreopt.cpp

diff --git a/cmds/installd/otapreopt.cpp b/cmds/installd/otapreopt.cpp
index 96d8c47..7291ef3 100644
--- a/cmds/installd/otapreopt.cpp
+++ b/cmds/installd/otapreopt.cpp
@@ -88,6 +88,12 @@
               "DEXOPT_MASK unexpected.");
 
 
+template<typename T>
+static constexpr bool IsPowerOfTwo(T x) {
+  static_assert(std::is_integral<T>::value, "T must be integral");
+  // TODO: assert unsigned. There is currently many uses with signed values.
+  return (x & (x - 1)) == 0;
+}
 
 template<typename T>
 static constexpr T RoundDown(T x, typename std::decay<T>::type n) {