From 3226c52b086bbbe52452c9d2efb63a5635a60c5e Mon Sep 17 00:00:00 2001
From: "Steven R. Loomis" <srl@icu-project.org>
Date: Wed, 5 Mar 2014 23:11:07 +0000
Subject: [PATCH] ICU-10756 fix operator= ( restores performance for the
 createInstance() / applyPattern("#") case )

X-SVN-Rev: 35348
---
 icu4c/source/i18n/dcfmtimp.h   | 11 ++++++++---
 icu4c/source/i18n/decimfmt.cpp |  6 ++++--
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/icu4c/source/i18n/dcfmtimp.h b/icu4c/source/i18n/dcfmtimp.h
index 4256fd07618..0f27a8d9478 100644
--- a/icu4c/source/i18n/dcfmtimp.h
+++ b/icu4c/source/i18n/dcfmtimp.h
@@ -1,6 +1,6 @@
 /*
 ********************************************************************************
-*   Copyright (C) 2012, International Business Machines
+*   Copyright (C) 2012-2014, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 ********************************************************************************/
 
@@ -26,7 +26,12 @@ enum EDecimalFormatFastpathStatus {
 struct DecimalFormatInternal {
   uint8_t    fFastFormatStatus;
   uint8_t    fFastParseStatus;
-  
+
+  DecimalFormatInternal &operator=(const DecimalFormatInternal& rhs) {
+    fFastParseStatus = rhs.fFastParseStatus;
+    fFastFormatStatus = rhs.fFastFormatStatus;
+    return *this;
+  }
 #ifdef FMT_DEBUG
   void dump() const {
     printf("DecimalFormatInternal: fFastFormatStatus=%c, fFastParseStatus=%c\n",
@@ -34,7 +39,7 @@ struct DecimalFormatInternal {
            "NY?"[(int)fFastParseStatus&3]
            );
   }
-#endif  
+#endif
 };
 
 
diff --git a/icu4c/source/i18n/decimfmt.cpp b/icu4c/source/i18n/decimfmt.cpp
index eb9e1481c53..b7a56ff0fbe 100644
--- a/icu4c/source/i18n/decimfmt.cpp
+++ b/icu4c/source/i18n/decimfmt.cpp
@@ -835,10 +835,12 @@ DecimalFormat::operator=(const DecimalFormat& rhs)
             fPluralAffixesForCurrency = initHashForAffixPattern(status);
             copyHashForAffix(rhs.fPluralAffixesForCurrency, fPluralAffixesForCurrency, status);
         }
-    }
 #if UCONFIG_FORMAT_FASTPATHS_49
-    handleChanged();
+        DecimalFormatInternal &data    = internalData(fReserved);
+        const DecimalFormatInternal &rhsData = internalData(rhs.fReserved);
+        data = rhsData;
 #endif
+    }
     return *this;
 }
 
-- 
2.40.0