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Templates and Generic Programming · 4:04

Class Templates

A class template turns a type into a parameter: one recipe, and the compiler stamps out a real class for every type you use. We instantiate Vector for char, string and list, find the separate constructors in the object file, put values in template parameters to avoid the heap, and catch the string-literal trap in class template argument deduction.

You will learn

Write a class template and explain what instantiation produces
Weigh the speed benefit of templates against code bloat
Use non-type template parameters to keep data off the heap
Predict class template argument deduction, including the string-literal trap

Chapters

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