Is a return statement mandatory for C++ functions that do not return void?

Question

My Herb Schildt book on C++ says: \"... In C++, if a function is declared as returning a value, it must return a value.\" However, if I write a function wit

Answer 1

Yes, it must return a value.

Flowing off the end of a function is equivalent to a return with no value; this results in undefined behavior in a value-returning function.

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