From 1a95dc9bd6752e559e0b763bc2e46bd497c33347 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Marjam=C3=A4ki?= <daniel.marjamaki@gmail.com>
Date: Mon, 17 Apr 2017 22:15:29 +0200
Subject: [PATCH] Fixed #7979 (Tokenizer: Detect and reject c++ code in .c
 file)

---
 lib/tokenize.cpp      | 8 ++++++++
 test/testtokenize.cpp | 1 +
 2 files changed, 9 insertions(+)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 641773862..75f28fc62 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -8046,6 +8046,14 @@ void Tokenizer::validateC() const
     if (!isC())
         return;
     for (const Token *tok = tokens(); tok; tok = tok->next()) {
+        // Template function..
+        if (Token::Match(tok, "%name% < %name% > (")) {
+            const Token *tok2 = tok->tokAt(5);
+            while (tok2 && !Token::Match(tok2, "[()]"))
+                tok2 = tok2->next();
+            if (Token::simpleMatch(tok2, ") {"))
+                syntaxErrorC(tok, tok->str() + '<' + tok->strAt(2) + ">() {}");
+        }
         if (tok->previous() && !Token::Match(tok->previous(), "[;{}]"))
             continue;
         if (Token::simpleMatch(tok, "using namespace std ;"))
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index c0e337e88..687c274ff 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -790,6 +790,7 @@ private:
         ASSERT_THROW(tokenizeAndStringify(";using namespace std;",false,false,Settings::Native,"test.c"), InternalError);
         ASSERT_THROW(tokenizeAndStringify(";std::map<int,int> m;",false,false,Settings::Native,"test.c"), InternalError);
         ASSERT_THROW(tokenizeAndStringify(";template<class T> class X { };",false,false,Settings::Native,"test.c"), InternalError);
+        ASSERT_THROW(tokenizeAndStringify("int X<Y>() {};",false,false,Settings::Native,"test.c"), InternalError);
     }
 
     void syntax_case_default() { // correct syntax