August 2022
Beginner to intermediate
480 pages
8h 21m
English
Content preview from Template Metaprogramming with C++
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Chapter 5: Type Traits and Conditional Compilation
Type traits are an important metaprogramming technique that enables us to inspect properties of types or to perform transformations of types at compile-time. Type traits are themselves templates and you can see them as meta-types. Knowing information such as the nature of a type, its supported operations, and its various properties is key for performing conditional compilation of templated code. It is also very useful when writing a library of templates.
In this chapter, you will learn the following:
- Understanding and defining type traits
- Understanding SFINAE and its purpose
- Enabling SFINAE with the enable_if type trait
- Using constexpr if
- Exploring the standard type traits
- Seeing real-world ...
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