Navigating C++ and Object-Oriented Design

3.9. Key Point Summary

• C++ functions have definitions and declarations. Function prototypes must always precede function calls.

• Inline functions give you the type safety of functions with the performance of macros.

• Recursive functions make extensive use of the run-time stack but are often simple and elegant solutions to complex problems.

• Pointers to functions allow you to call functions through data structures, such as dispatch tables.

• With function prototypes and definitions, all sizes of a multidimensional array argument are necessary except the first one. All sizes must be constant integer expressions, and the first size is optional.

• Function signatures with default arguments obey the Positional Rule: arguments without default values must appear ...