In the template prefix, template, what kinds of variables is the parameter T?
a. T must be a type built into C++ such as int or double.
b. T must not be a class.
c. T must be a class.
d. T can be any type, whether built into C++ or programmer defined.
e. T can be any type, whether built into C++ or programmer defined, but subject to restrictions. Explain what these are.
Part e)
Explanation: Any type whether struct, enum, class, pointer, array, or any type built into C++ may be used. User defined types must have features used in the code. For example, the swapValues function requires a working operator assignment. A sort template function would probably require a working operator <.
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