Calling an Overloaded Function
Once we have defined a set of overloaded functions, we need to be able to call them with appropriate arguments. Function matching (also known as overload resolution) is the process by which a particular function call is associated with a specific function from a set of overloaded functions. The compiler determines which function to call by comparing the arguments in the call with the parameters offered by each function in the overload set.
In many—probably most—cases, it is straightforward for a programmer to determine whether a particular call is legal and, if so, which function will be called. Often the functions in the overload set differ in terms of the number of arguments, or the types of the arguments are ...
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