From 2f88a46e4e098025e60fd7bb53ba21eb49ab11a3 Mon Sep 17 00:00:00 2001
From: Nikolai Kosjar <nikolai.kosjar@nokia.com>
Date: Mon, 17 Sep 2012 14:46:19 +0200
Subject: [PATCH] C++: Fix memory leak in preprocessor.

This addresses the main memory leak revealed in QTCREATORBUG-7645.
The other leaks seem to have their origin in Qt.

Task-Number: QTCREATORBUG-7645.
Change-Id: I77f45449416c143b222ed5f5c905cba9674f95bb
Reviewed-by: Christian Kamm <kamm@incasoftware.de>
---
 src/libs/cplusplus/pp-engine.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libs/cplusplus/pp-engine.cpp b/src/libs/cplusplus/pp-engine.cpp
index 3f94652ee66..4a62b20757b 100644
--- a/src/libs/cplusplus/pp-engine.cpp
+++ b/src/libs/cplusplus/pp-engine.cpp
@@ -1297,6 +1297,8 @@ void Preprocessor::preprocess(const QString &fileName, const QByteArray &source,
     removeTrailingOutputLines();
 
     delete m_state.m_lexer;
+    while (m_state.m_tokenBuffer)
+        m_state.popTokenBuffer();
     m_state = savedState;
 
     m_env->currentFile = previousFileName;