Fix #153 (Unsigned divide)

The "unsigned i" variable declaration wasn't handled well. So I added an "int" token.

src/tokenize.cpp

@@ -473,6 +473,9 @@ bool Tokenizer::tokenize(std::istream &code, const char FileName[])
         }
     }
 
+    // replace "unsigned i" with "unsigned int i"
+    unsignedint();
+
     simplifyVarDecl();
 
     // Handle templates..
@@ -2214,6 +2217,30 @@ bool Tokenizer::simplifyVarDecl()
 }
 
 
+void Tokenizer::unsignedint()
+{
+    for (Token *tok = _tokens; tok; tok = tok->next())
+    {
+        // A variable declaration where the "int" is left out?
+        if (!Token::Match(tok, "unsigned %var% [;,=]"))
+            continue;
+
+        // Previous token should either be a symbol or one of "{};"
+        if (tok->previous() &&
+            !tok->previous()->isName() &&
+            !Token::Match(tok->previous(), "[{};]"))
+            continue;
+
+        // next token should not be a standard type?
+        if (tok->next()->isStandardType())
+            continue;
+
+        // The "int" is missing.. add it
+        tok->insertToken("int");
+    }
+}
+
+
 bool Tokenizer::simplifyIfAssign()
 {
     bool ret = false;

src/tokenize.h

@@ -100,6 +100,12 @@ class Tokenizer
      */
     bool simplifyVarDecl();
 
+    /**
+     * insert an "int" after "unsigned" if needed:
+     * "unsigned i" => "unsigned int i"
+     */
+    void unsignedint();
+
     /**
      * Simplify question mark - colon operator
      * Example: 0 ? (2/0) : 0 => 0

test/testtokenize.cpp

@@ -145,6 +145,9 @@ class TestTokenizer : public TestFixture
         TEST_CASE(syntax_error);
 
         TEST_CASE(removeKeywords);
+
+        // unsigned i; => unsigned int i;
+        TEST_CASE(unsigned1);
     }
 
 
@@ -2028,6 +2031,28 @@ class TestTokenizer : public TestFixture
         ASSERT_EQUALS("if ( ! ! x ) { ; }", actual);
     }
 
+
+    /**
+     * tokenize "unsigned i" => "unsigned int i"
+     * tokenize "unsigned int" => "unsigned int"
+     */
+    void unsigned1()
+    {
+        // No changes..
+        {
+            const char code[] = "void foo ( unsigned int , unsigned float ) ;";
+            ASSERT_EQUALS(code, tokenizeAndStringify(code));
+        }
+
+        // insert "int" after "unsigned"..
+        {
+            const char code1[] = "unsigned i ;";
+            const char code2[] = "unsigned int i ;";
+            ASSERT_EQUALS(code2, tokenizeAndStringify(code1));
+        }
+
+    }
+
 };
 
 REGISTER_TEST(TestTokenizer)