From 6f966347599a2e8e5016f9665fa3b159782193cb Mon Sep 17 00:00:00 2001
From: Alexander Mai <amai@users.sf.net>
Date: Sun, 3 May 2015 15:21:58 +0200
Subject: [PATCH] #6276 clang: -fsanitize=integer warnings. Fix unwanted
 integer overflow in TemplateSimplifier::useDefaultArgumentValues() and
 Tokenizer::simplifyQtSignalsSlots()

---
 lib/templatesimplifier.cpp | 7 ++++---
 lib/tokenize.cpp           | 5 +++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/lib/templatesimplifier.cpp b/lib/templatesimplifier.cpp
index a0c91242f..7b4b1e3e4 100644
--- a/lib/templatesimplifier.cpp
+++ b/lib/templatesimplifier.cpp
@@ -569,9 +569,10 @@ void TemplateSimplifier::useDefaultArgumentValues(const std::list<Token *> &temp
             if (tok->str() == ">") {
                 if (Token::Match(tok, "> class|struct %name%"))
                     classname = tok->strAt(2);
-                --templateParmDepth;
-                if (0 == templateParmDepth)
+                if (templateParmDepth<2)
                     break;
+                else
+                    --templateParmDepth;
             }
 
             // next template parameter
@@ -601,7 +602,7 @@ void TemplateSimplifier::useDefaultArgumentValues(const std::list<Token *> &temp
 
             // count the parameters..
             tok = tok->next();
-            unsigned int usedpar = TemplateSimplifier::templateParameters(tok);
+            const unsigned int usedpar = TemplateSimplifier::templateParameters(tok);
             tok = tok->findClosingBracket();
 
             if (tok && tok->str() == ">") {
diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 913209890..38c4ca573 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -9860,9 +9860,10 @@ void Tokenizer::simplifyQtSignalsSlots()
                 else
                     tok2 = tok2->link();
             } else if (tok2->str() == "}") {
-                --indentlevel;
-                if (indentlevel == 0)
+                if (indentlevel<2)
                     break;
+                else
+                    --indentlevel;
             }
 
             if (tok2->strAt(1) == "Q_OBJECT") {