From: Scott McMurray <scottmcm@users.noreply.github.com>
Date: Sat, 4 Nov 2017 04:48:33 +0000 (-0700)
Subject: Fix #18604: next_power_of_two should panic on overflow
X-Git-Url: https://git.lizzy.rs/?a=commitdiff_plain;h=15ea3d80dacc4bb0919655e0f16e808ce83b5cf9;p=rust.git

Fix #18604: next_power_of_two should panic on overflow
---

diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index 5799d37c19c..914b3762d80 100644
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -2222,6 +2222,7 @@ fn one_less_than_next_power_of_two(self) -> Self {
         /// ```
         #[stable(feature = "rust1", since = "1.0.0")]
         #[inline]
+        #[rustc_inherit_overflow_checks]
         pub fn next_power_of_two(self) -> Self {
             self.one_less_than_next_power_of_two() + 1
         }