A Closer Look at Functions

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A Closer Look at Functions

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This module continues our examination of the function. It discusses three of C++’s most important function-related topics: references, function overloading, and default arguments. These features vastly expand the capabilities of a function. A reference is an implicit pointer. Function overloading is the quality that allows one function to be implemented two or more different ways, each performing a separate task. Function overloading is one way that C++ supports polymorphism. Using a default argument, it is possible to specify a value for a parameter that will be automatically used when no corresponding argument is specified. We will begin with an explanation...

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