Fixed #893 (False Positive: Uninitialized variable b in a[0] = b[0] = '\0';)

lib/checkother.cpp

@@ -1294,6 +1294,16 @@ static const Token *uninitvar_checkscope(const Token * const tokens, const Token
                 init = true;
                 return 0;
             }
+
+            if (Token::simpleMatch(tok->next(), "["))
+            {
+                const Token *tok2 = Token::findmatch(tok, "]");
+                if (Token::simpleMatch(tok2 ? tok2->next() : 0, "="))
+                {
+                    init = true;
+                    return 0;
+                }
+            }
         }
 
         if (Token::Match(tok, "%var% ("))

test/testother.cpp

@@ -1078,6 +1078,13 @@ private:
         ASSERT_EQUALS("", errout.str());
 
         // arrays..
+        checkUninitVar("void f()\n"
+                       "{\n"
+                       "    char a[10], b[10];\n"
+                       "    a[0] = b[0] = 0;\n"
+                       "}\n");
+        ASSERT_EQUALS("", errout.str());
+
         checkUninitVar("void f()\n"
                        "{\n"
                        "    char s[20];\n"