Write the necessary preprocessor directive to enable the use of the exit function. Write the definition of a function named panic. The function prints the message “unrecoverable error” and then terminates execution of the program, indicating failure..

C++

LANGUAGE: C++ CHALLENGE: Write the necessary preprocessor directive to enable the use of the exit function. Write the definition of a function named panic. The function prints the message “unrecoverable error” and then terminates execution of the program, indicating failure.

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