From af6e76d6239e1993ad2ff27ecac69f6e0e93a4f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Marjam=C3=A4ki?= <daniel.marjamaki@gmail.com>
Date: Thu, 25 Jun 2020 22:06:34 +0200
Subject: [PATCH] Fixed #9787 (Better handling of user defined literals)

---
 lib/checkstl.h        |  2 +-
 lib/tokenize.cpp      | 16 ++++++++++++++++
 test/teststl.cpp      |  2 +-
 test/testtokenize.cpp |  9 +++++++++
 4 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/lib/checkstl.h b/lib/checkstl.h
index b9ffdc2a1..9dd5e07d5 100644
--- a/lib/checkstl.h
+++ b/lib/checkstl.h
@@ -186,7 +186,7 @@ public:
 
     /** @brief Look for loops that can replaced with std algorithms */
     void useStlAlgorithm();
-    
+
     void checkMutexes();
 
 private:
diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index c184906b3..b72ba5225 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -11161,6 +11161,22 @@ void Tokenizer::simplifyOperatorName()
             tok->isOperatorKeyword(true);
     }
 
+    for (Token *tok = list.front(); tok; tok = tok->next()) {
+        if (Token::Match(tok, "%op% %str% %name%")) {
+            std::string name = tok->strAt(2);
+            Token * const str = tok->next();
+            str->deleteNext();
+            tok->insertToken("operator\"\"" + name);
+            tok = tok->next();
+            tok->isOperatorKeyword(true);
+            tok->insertToken("(");
+            str->insertToken(")");
+            Token::createMutualLinks(tok->next(), str->next());
+            str->insertToken(MathLib::toString(Token::getStrLength(str)));
+            str->insertToken(",");
+        }
+    }
+
     if (mSettings->debugwarnings) {
         const Token *tok = list.front();
 
diff --git a/test/teststl.cpp b/test/teststl.cpp
index bec982336..677efae2a 100644
--- a/test/teststl.cpp
+++ b/test/teststl.cpp
@@ -165,7 +165,7 @@ private:
         TEST_CASE(invalidContainer);
         TEST_CASE(invalidContainerLoop);
         TEST_CASE(findInsert);
-        
+
         TEST_CASE(checkMutexes);
     }
 
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index d31179610..361c396a8 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -413,6 +413,7 @@ private:
         TEST_CASE(simplifyOperatorName24);
         TEST_CASE(simplifyOperatorName25);
         TEST_CASE(simplifyOperatorName26);
+        TEST_CASE(simplifyOperatorName27);
 
         TEST_CASE(simplifyNullArray);
 
@@ -6615,6 +6616,14 @@ private:
                       tokenizeAndStringify(code));
     }
 
+    void simplifyOperatorName27() {
+        const char code[] = "int operator \"\" i (const char *, int);\n"
+                            "x = \"abc\"i;";
+        ASSERT_EQUALS("int operator\"\"i ( const char * , int ) ;\n"
+                      "x = operator\"\"i ( \"abc\" , 3 ) ;",
+                      tokenizeAndStringify(code));
+    }
+
     void simplifyNullArray() {
         ASSERT_EQUALS("* ( foo . bar [ 5 ] ) = x ;", tokenizeAndStringify("0[foo.bar[5]] = x;"));
     }