cppcheck-opensource
diff --git a/‎simplecpp.cpp‎
Lines changed: 24 additions & 0 deletions b/‎simplecpp.cpp‎
Lines changed: 24 additions & 0 deletions
diff --git a/‎simplecpp.h‎
Lines changed: 1 addition & 0 deletions b/‎simplecpp.h‎
Lines changed: 1 addition & 0 deletions
@@ -589,6 +589,7 @@ void simplecpp::TokenList::constFold()
         constFoldUnaryNotPosNeg(tok);
         constFoldMulDivRem(tok);
         constFoldAddSub(tok);
+        constFoldShift(tok);
         constFoldComparison(tok);
         constFoldBitwise(tok);
         constFoldLogicalOp(tok);
@@ -769,6 +770,29 @@ void simplecpp::TokenList::constFoldAddSub(Token *tok)
     }
 }
 
+void simplecpp::TokenList::constFoldShift(Token *tok)
+{
+    for (; tok && tok->op != ')'; tok = tok->next) {
+        if (!tok->previous || !tok->previous->number)
+            continue;
+        if (!tok->next || !tok->next->number)
+            continue;
+
+        long long result;
+        if (tok->str == "<<")
+            result = stringToLL(tok->previous->str) << stringToLL(tok->next->str);
+        else if (tok->str == ">>")
+            result = stringToLL(tok->previous->str) >> stringToLL(tok->next->str);
+        else
+            continue;
+
+        tok = tok->previous;
+        tok->setstr(toString(result));
+        deleteToken(tok->next);
+        deleteToken(tok->next);
+    }
+}
+
 static const std::string NOTEQ("not_eq");
 void simplecpp::TokenList::constFoldComparison(Token *tok)
 {
 
@@ -249,6 +249,7 @@ namespace simplecpp {
         void constFoldUnaryNotPosNeg(Token *tok);
         void constFoldMulDivRem(Token *tok);
         void constFoldAddSub(Token *tok);
+        void constFoldShift(Token *tok);
         void constFoldComparison(Token *tok);
         void constFoldBitwise(Token *tok);
         void constFoldLogicalOp(Token *tok);