From: Andy Heninger <andy.heninger@gmail.com>
Date: Wed, 1 Mar 2017 21:59:38 +0000 (+0000)
Subject: ICU-13008 Signed int overflow (undefined behavior) in datefmt.cpp
X-Git-Tag: release-59-rc~135
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=80606f5b57f1e0c89574e7ef0d463c30c6f18d90;p=icu

ICU-13008 Signed int overflow (undefined behavior) in datefmt.cpp

X-SVN-Rev: 39718
---

diff --git a/icu4c/source/i18n/datefmt.cpp b/icu4c/source/i18n/datefmt.cpp
index 60681403af3..7dc753f1411 100644
--- a/icu4c/source/i18n/datefmt.cpp
+++ b/icu4c/source/i18n/datefmt.cpp
@@ -80,7 +80,7 @@ public:
             fSkeleton(other.fSkeleton) { }
     virtual ~DateFmtBestPatternKey();
     virtual int32_t hashCode() const {
-        return 37 * LocaleCacheKey<DateFmtBestPattern>::hashCode() + fSkeleton.hashCode();
+        return (int32_t)(37u * (uint32_t)LocaleCacheKey<DateFmtBestPattern>::hashCode() + (uint32_t)fSkeleton.hashCode());
     }
     virtual UBool operator==(const CacheKeyBase &other) const {
        // reflexive