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C++11 for Programmers, Second Edition by Harvey M. Deitel, Abbey Deitel, Paul J. Deitel

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6.18. Function Templates

Overloaded functions are normally used to perform similar operations that involve different program logic on different data types. If the program logic and operations are identical for each data type, overloading may be performed more compactly and conveniently by using function templates. You write a single function template definition. Given the argument types provided in calls to this function, C++ automatically generates separate function template specializations to handle each type of call appropriately. Thus, defining a single function template essentially defines a whole family of overloaded functions.

Figure 6.24 defines a maximum function template (lines 3–17) that determines the largest of three values. All ...

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