From 8b1ffefd748f9604e60023a65c135a490d38227f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Marjam=E4ki?= <danielm77@spray.se>
Date: Fri, 14 May 2010 18:40:15 +0200
Subject: [PATCH] Fixed #1682 (Internal error)

---
 lib/tokenize.cpp            |  3 +++
 test/testsimplifytokens.cpp | 12 ++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 3fe35182f..536ad084e 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -2900,6 +2900,9 @@ void Tokenizer::simplifySizeof()
         if (tok->str() != "sizeof")
             continue;
 
+        if (Token::simpleMatch(tok->next(), "sizeof"))
+            continue;
+
         // sizeof "text"
         if (Token::Match(tok->next(), "%str%"))
         {
diff --git a/test/testsimplifytokens.cpp b/test/testsimplifytokens.cpp
index b26a7ab9f..235125a92 100644
--- a/test/testsimplifytokens.cpp
+++ b/test/testsimplifytokens.cpp
@@ -73,6 +73,7 @@ private:
         TEST_CASE(sizeof16);
         TEST_CASE(sizeof17);
         TEST_CASE(sizeof18);
+        TEST_CASE(sizeofsizeof);
         TEST_CASE(casting);
 
         TEST_CASE(strlen1);
@@ -1251,6 +1252,17 @@ private:
         }
     }
 
+    void sizeofsizeof()
+    {
+        // ticket #1682
+        const char code[] = "void f()\n"
+                            "{\n"
+                            "    sizeof sizeof 1;\n"
+                            "}\n";
+        ASSERT_EQUALS("void f ( ) { sizeof sizeof ( 1 ) ; }", tok(code));
+        ASSERT_EQUALS("", errout.str());
+    }
+
     void casting()
     {
         {