From 5b1b845750647b91e44264c783f15ad514b2e389 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Marjam=C3=A4ki?= <danielm77@spray.se>
Date: Sat, 20 Mar 2010 08:03:18 +0100
Subject: [PATCH] Fixed #1504 (False positive: Cppcheck incorrectly reports
 that extern variable is not initialized)

---
 lib/tokenize.cpp      | 6 ++++++
 test/testtokenize.cpp | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 0456d017b..e94b51ce1 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -4333,6 +4333,12 @@ void Tokenizer::unsignedint()
             continue;
         }
 
+        if (Token::Match(tok->previous(), "extern unsigned|signed *| %var% [;[]"))
+        {
+            tok->str("int");
+            continue;
+        }
+
         // signed int a; -> int a;
         if (Token::Match(tok, "signed %type% %var% [;,=)]"))
         {
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index 252802916..b25c30827 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -2734,6 +2734,12 @@ private:
             ASSERT_EQUALS(code2, tokenizeAndStringify(code1));
         }
 
+        // "extern unsigned x;" => "extern int x;"
+        {
+            const char code1[] = "; extern unsigned x;";
+            const char code2[] = "; extern int x ;";
+            ASSERT_EQUALS(code2, tokenizeAndStringify(code1));
+        }
     }
 
     void unsigned2()