Generic way to cast int to enum in C++

Question

Is there a generic way to cast int to enum in C++?

If int falls in range of an enum it should return

Answer 1

If, as you describe, the values are in a database, why not write a code generator that reads this table and creates a .h and .cpp file with both the enum and a to_enum(int) function?

Advantages:

• Easy to add a to_string(my_enum) function.
• Little maintenance required
• Database and code are in synch