1 files changed, 19 insertions, 19 deletions

diff --git a/thirdparty/icu4c/common/unicode/ucharstriebuilder.h b/thirdparty/icu4c/common/unicode/ucharstriebuilder.h
index 15657702f9..e0cb0acdc5 100644
--- a/thirdparty/icu4c/common/unicode/ucharstriebuilder.h
+++ b/thirdparty/icu4c/common/unicode/ucharstriebuilder.h
@@ -138,41 +138,41 @@ private:
 
     void buildUChars(UStringTrieBuildOption buildOption, UErrorCode &errorCode);
 
-    virtual int32_t getElementStringLength(int32_t i) const;
-    virtual char16_t getElementUnit(int32_t i, int32_t unitIndex) const;
-    virtual int32_t getElementValue(int32_t i) const;
+    virtual int32_t getElementStringLength(int32_t i) const override;
+    virtual char16_t getElementUnit(int32_t i, int32_t unitIndex) const override;
+    virtual int32_t getElementValue(int32_t i) const override;
 
-    virtual int32_t getLimitOfLinearMatch(int32_t first, int32_t last, int32_t unitIndex) const;
+    virtual int32_t getLimitOfLinearMatch(int32_t first, int32_t last, int32_t unitIndex) const override;
 
-    virtual int32_t countElementUnits(int32_t start, int32_t limit, int32_t unitIndex) const;
-    virtual int32_t skipElementsBySomeUnits(int32_t i, int32_t unitIndex, int32_t count) const;
-    virtual int32_t indexOfElementWithNextUnit(int32_t i, int32_t unitIndex, char16_t unit) const;
+    virtual int32_t countElementUnits(int32_t start, int32_t limit, int32_t unitIndex) const override;
+    virtual int32_t skipElementsBySomeUnits(int32_t i, int32_t unitIndex, int32_t count) const override;
+    virtual int32_t indexOfElementWithNextUnit(int32_t i, int32_t unitIndex, char16_t unit) const override;
 
-    virtual UBool matchNodesCanHaveValues() const { return true; }
+    virtual UBool matchNodesCanHaveValues() const override { return true; }
 
-    virtual int32_t getMaxBranchLinearSubNodeLength() const { return UCharsTrie::kMaxBranchLinearSubNodeLength; }
-    virtual int32_t getMinLinearMatch() const { return UCharsTrie::kMinLinearMatch; }
-    virtual int32_t getMaxLinearMatchLength() const { return UCharsTrie::kMaxLinearMatchLength; }
+    virtual int32_t getMaxBranchLinearSubNodeLength() const override { return UCharsTrie::kMaxBranchLinearSubNodeLength; }
+    virtual int32_t getMinLinearMatch() const override { return UCharsTrie::kMinLinearMatch; }
+    virtual int32_t getMaxLinearMatchLength() const override { return UCharsTrie::kMaxLinearMatchLength; }
 
     class UCTLinearMatchNode : public LinearMatchNode {
     public:
         UCTLinearMatchNode(const char16_t *units, int32_t len, Node *nextNode);
-        virtual UBool operator==(const Node &other) const;
-        virtual void write(StringTrieBuilder &builder);
+        virtual bool operator==(const Node &other) const override;
+        virtual void write(StringTrieBuilder &builder) override;
     private:
         const char16_t *s;
     };
 
     virtual Node *createLinearMatchNode(int32_t i, int32_t unitIndex, int32_t length,
-                                        Node *nextNode) const;
+                                        Node *nextNode) const override;
 
     UBool ensureCapacity(int32_t length);
-    virtual int32_t write(int32_t unit);
+    virtual int32_t write(int32_t unit) override;
     int32_t write(const char16_t *s, int32_t length);
-    virtual int32_t writeElementUnits(int32_t i, int32_t unitIndex, int32_t length);
-    virtual int32_t writeValueAndFinal(int32_t i, UBool isFinal);
-    virtual int32_t writeValueAndType(UBool hasValue, int32_t value, int32_t node);
-    virtual int32_t writeDeltaTo(int32_t jumpTarget);
+    virtual int32_t writeElementUnits(int32_t i, int32_t unitIndex, int32_t length) override;
+    virtual int32_t writeValueAndFinal(int32_t i, UBool isFinal) override;
+    virtual int32_t writeValueAndType(UBool hasValue, int32_t value, int32_t node) override;
+    virtual int32_t writeDeltaTo(int32_t jumpTarget) override;
 
     UnicodeString strings;
     UCharsTrieElement *elements;