Fixed #2188 (Does not detect initialization)

lib/checkuninitvar.cpp

@@ -673,7 +673,7 @@ private:
                         bailouts.insert(tok2->varId());
 
                     // array initialization..
-                    if (Token::Match(tok2->previous(), "[,(] %var% +"))
+                    if (Token::Match(tok2->previous(), "[,(] %var% [+-]"))
                     {
                         // if var is array, bailout
                         for (std::list<ExecutionPath *>::const_iterator it = checks.begin(); it != checks.end(); ++it)

test/testuninitvar.cpp

@@ -879,6 +879,14 @@ private:
                        "        s = y[0]*y[1];\n"
                        "}\n");
         ASSERT_EQUALS("", errout.str());
+
+        checkUninitVar("void foo()\n"
+                       "{\n"
+                       "        int a[2];\n"
+                       "        init(a - 1);\n"
+                       "        int b = a[0];\n"
+                       "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     // alloc..