From e6b5fe99f6b8c179f006e1bfb7af6304b97bd57c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Marjam=C3=A4ki?= <hyd_danmar@users.sourceforge.net>
Date: Sun, 29 Nov 2009 17:25:35 +0100
Subject: [PATCH] Fixed #1027 (Internal error: sizeof a++)

---
 lib/tokenize.cpp            |  8 ++++++++
 test/testsimplifytokens.cpp | 13 +++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 4a7896d83..68aa3adce 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -1737,6 +1737,14 @@ void Tokenizer::simplifySizeof()
             tok->next()->insertToken("*");
         }
 
+        // sizeof a++ -> sizeof(a++)
+        if (Token::Match(tok->next(), "++|-- %var% !!.") || Token::Match(tok->next(), "%var% ++|--"))
+        {
+            tok->insertToken("(");
+            tok->tokAt(3)->insertToken(")");
+            Token::createMutualLinks(tok->next(), tok->tokAt(4));
+        }
+
         // sizeof int -> sizeof( int )
         if (tok->next()->str() != "(")
         {
diff --git a/test/testsimplifytokens.cpp b/test/testsimplifytokens.cpp
index afcc7a541..6e75f733e 100644
--- a/test/testsimplifytokens.cpp
+++ b/test/testsimplifytokens.cpp
@@ -71,6 +71,7 @@ private:
         TEST_CASE(sizeof13);
         TEST_CASE(sizeof14);
         TEST_CASE(sizeof15);
+        TEST_CASE(sizeof16);
         TEST_CASE(casting);
 
         TEST_CASE(strlen1);
@@ -925,6 +926,18 @@ private:
         ASSERT_EQUALS("", errout.str());
     }
 
+    void sizeof16()
+    {
+        // ticket #1027
+        const char code[] = "void f()\n"
+                            "{\n"
+                            "    int a;\n"
+                            "    printf(\"%i\", sizeof a++);\n"
+                            "}\n";
+        ASSERT_EQUALS("void f ( ) { int a ; printf ( \"%i\" , sizeof ( a ++ ) ) ; }", tok(code));
+        ASSERT_EQUALS("", errout.str());
+    }
+
     void casting()
     {
         {