Uncaught Exceptions in C++

When an uncaught exception propagates in C++, the C++11 standard leaves stack unwinding as implementation-defined behavior before std::terminate() is called. In practice, destructors of in-flight objects may not be called, meaning unflushed buffers or other cleanup logic can be silently skipped. Wrapping code in a try-catch block ensures proper stack unwinding and destructor invocation. The post demonstrates this with a concrete code example comparing program output with and without a catch clause, and notes the issue becomes more relevant in C++14 where constexpr functions can throw exceptions.