Fixed #3845

lib/checkuninitvar.cpp

@@ -389,6 +389,13 @@ private:
         if (tok.varId() && Token::Match(&tok, "%var% [[;]")) {
             const Variable* var2 = symbolDatabase->getVariableFromVarId(tok.varId());
             if (var2 && var2->nameToken() == &tok && !var2->isStatic() && !var2->isConst()) {
+                if (tok.linkAt(1)) { // array
+                    const Token* end = tok.next();
+                    while (end->link())
+                        end = end->link()->next();
+                    if (end->str() != ";")
+                        return &tok;
+                }
                 const Scope* parent = var2->scope()->nestedIn;
                 while (parent) {
                     for (std::list<Variable>::const_iterator j = parent->varlist.begin(); j != parent->varlist.end(); ++j) {

test/testuninitvar.cpp

@@ -1182,6 +1182,31 @@ private:
                        "   free(buffer);\n"
                        "}\n");
         ASSERT_EQUALS("[test.cpp:4]: (error) Data is allocated but not initialized: buffer\n", errout.str());
+
+        // #3845
+        checkUninitVar("int foo() {\n"
+                       "    int a[1] = {5};\n"
+                       "    return a[0];\n"
+                       "}");
+        ASSERT_EQUALS("", errout.str());
+
+        checkUninitVar("int foo() {\n"
+                       "    int a[2][2] = {{3,4}, {5,6}};\n"
+                       "    return a[0][1];\n"
+                       "}");
+        ASSERT_EQUALS("", errout.str());
+
+        checkUninitVar("int foo() {\n"
+                       "    int a[1];\n"
+                       "    return a[0];\n"
+                       "}");
+        ASSERT_EQUALS("[test.cpp:3]: (error) Uninitialized variable: a\n", errout.str());
+
+        checkUninitVar("int foo() {\n"
+                       "    int a[2][2];\n"
+                       "    return a[0][1];\n"
+                       "}");
+        TODO_ASSERT_EQUALS("[test.cpp:3]: (error) Uninitialized variable: a\n", "", errout.str());
     }
 
     // alloc..