Test: iterator_invalidation.cpp
iterator_invalidation.cpp:16:22: error: stray '\' in program
   16 |         size_t i = 0;\n        while (i < events_.size()) {\n            std::cout << "Event: " << events_[i] << std::endl;\n\n            // Add derived event during iteration\n            if (events_[i] == "user_login") {\n                events_.push_back("log_analytics");\n            }\n            i++;\n        }
      |                      ^
iterator_invalidation.cpp:16:60: error: stray '\' in program
   16 |         size_t i = 0;\n        while (i < events_.size()) {\n            std::cout << "Event: " << events_[i] << std::endl;\n\n            // Add derived event during iteration\n            if (events_[i] == "user_login") {\n                events_.push_back("log_analytics");\n            }\n            i++;\n        }
      |                                                            ^
iterator_invalidation.cpp:16:124: error: stray '\' in program
   16 |         size_t i = 0;\n        while (i < events_.size()) {\n            std::cout << "Event: " << events_[i] << std::endl;\n\n            // Add derived event during iteration\n            if (events_[i] == "user_login") {\n                events_.push_back("log_analytics");\n            }\n            i++;\n        }
      |                                                                                                                            ^
iterator_invalidation.cpp:16:126: error: stray '\' in program
   16 |         size_t i = 0;\n        while (i < events_.size()) {\n            std::cout << "Event: " << events_[i] << std::endl;\n\n            // Add derived event during iteration\n            if (events_[i] == "user_login") {\n                events_.push_back("log_analytics");\n            }\n            i++;\n        }
      |                                                                                                                              ^
iterator_invalidation.cpp:39:2: error: expected '}' at end of input
   39 | }
      |  ^
iterator_invalidation.cpp:6:18: note: to match this '{'
    6 | class EventQueue {
      |                  ^
iterator_invalidation.cpp: In member function 'void EventQueue::addEvent(const std::string&)':
iterator_invalidation.cpp:9:9: error: 'events_' was not declared in this scope; did you mean 'event'?
    9 |         events_.push_back(event);
      |         ^~~~~~~
      |         event
iterator_invalidation.cpp: In member function 'void EventQueue::processEvents()':
iterator_invalidation.cpp:16:23: error: 'n' was not declared in this scope
   16 |         size_t i = 0;\n        while (i < events_.size()) {\n            std::cout << "Event: " << events_[i] << std::endl;\n\n            // Add derived event during iteration\n            if (events_[i] == "user_login") {\n                events_.push_back("log_analytics");\n            }\n            i++;\n        }
      |                       ^
iterator_invalidation.cpp:19:22: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   19 |     int getEventCount() const {
      |                      ^~
iterator_invalidation.cpp:19:22: note: remove parentheses to default-initialize a variable
   19 |     int getEventCount() const {
      |                      ^~
      |                      --
iterator_invalidation.cpp:19:22: note: or replace parentheses with braces to value-initialize a variable
iterator_invalidation.cpp:19:31: error: a function-definition is not allowed here before '{' token
   19 |     int getEventCount() const {
      |                               ^
iterator_invalidation.cpp:23:1: error: expected primary-expression before 'private'
   23 | private:
      | ^~~~~~~
iterator_invalidation.cpp: In member function 'int EventQueue::main()':
iterator_invalidation.cpp:35:44: error: 'class EventQueue' has no member named 'getEventCount'
   35 |     std::cout << "Total events: " << queue.getEventCount() << std::endl;
      |                                            ^~~~~~~~~~~~~
iterator_invalidation.cpp: At global scope:
iterator_invalidation.cpp:39:2: error: expected unqualified-id at end of input
   39 | }
      |  ^