From 3159d151d30c1b5d2fc9c88420788468a99b037d Mon Sep 17 00:00:00 2001
From: IOBYTE <reif@earthlink.net>
Date: Sun, 21 Jan 2018 15:22:26 -0500
Subject: [PATCH] Fix symbol database crash on template type aliases by
 ignoring them. (#1045)

---
 lib/symboldatabase.cpp      |  2 +-
 test/testsymboldatabase.cpp | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/lib/symboldatabase.cpp b/lib/symboldatabase.cpp
index 5bf6ca913..6b61fda3b 100644
--- a/lib/symboldatabase.cpp
+++ b/lib/symboldatabase.cpp
@@ -278,7 +278,7 @@ void SymbolDatabase::createSymbolDatabaseFindAllScopes()
 
         // using type alias
         else if (_tokenizer->isCPP() && Token::Match(tok, "using %name% =")) {
-            if (!findType(tok->next(), scope)) {
+            if (tok->strAt(-1) != ">" && !findType(tok->next(), scope)) {
                 // fill typeList..
                 typeList.push_back(Type(tok, nullptr, scope));
                 Type* new_type = &typeList.back();
diff --git a/test/testsymboldatabase.cpp b/test/testsymboldatabase.cpp
index b0101feae..920fcd0ef 100644
--- a/test/testsymboldatabase.cpp
+++ b/test/testsymboldatabase.cpp
@@ -351,7 +351,8 @@ private:
         TEST_CASE(unionWithConstructor);
 
         TEST_CASE(using1);
-        TEST_CASE(using2); // #8331
+        TEST_CASE(using2); // #8331 (segmentation fault)
+        TEST_CASE(using3); // #8343 (segmentation fault)
     }
 
     void array() {
@@ -5390,6 +5391,17 @@ private:
         settings1.standards.cpp = original_std;
     }
 
+    void using3() { // #8343 (segmentation fault)
+        Standards::cppstd_t original_std = settings1.standards.cpp;
+        settings1.standards.cpp = Standards::CPP11;
+        GET_SYMBOL_DB("template <typename T>\n"
+                      "using vector = typename MemoryModel::template vector<T>;\n"
+                      "vector<uninitialized_uint64> m_bits;");
+        settings1.standards.cpp = original_std;
+
+        ASSERT(db);
+        ASSERT_EQUALS("", errout.str());
+    }
 };
 
 REGISTER_TEST(TestSymbolDatabase)