The std::abort() and std::_Exit() functions are used to terminate the program in an immediate fashion. They do so without calling exit handlers registered with std::atexit() and without executing destructors for objects with automatic, thread, or static storage duration. Whether open streams with unwritten buffered data are flushed, open streams are closed, or temporary files are removed [ISO/IEC 9899:1999] is implementation defined. Because these functions can leave external resources in an indeterminate state, they should be called explicitly only in direct response to a critical error in the application.
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Do not explicitly or implicitly call std::abort() or std::_Exit(). When the default terminate_handler is installed or the current terminate_handler responds by calling std::abort() or std::_Exit(), do not explicitly or implicitly call std::terminate(). Abnormal Abnormal process termination is the typical vector for denial-of-service attacks.
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Note that the assert() macro is permissible under this exception because failed assertions will notify the operator on the standard error stream in an implementation-defined manner before calling std::abort().
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