November 2002
Intermediate to advanced
552 pages
10h 52m
English
Content preview from C++ Templates: The Complete Guide
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Chapter 15. Traits and Policy Classes
Templates enable us to parameterize classes and functions for various types. It could be tempting to introduce as many template parameters as possible to enable the customization of every aspect of a type or algorithm. In this way, our “templatized” components could be instantiated to meet the exact needs of client code. However, from a practical point of view it is rarely desirable to introduce dozens of template parameters for maximal parameterization. Having to specify all the corresponding arguments in the client code is overly tedious.
Fortunately, it turns out that most of the extra parameters we would introduce have reasonable default values. In some cases the extra parameters are entirely determined ...
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