Exploring C++20: The Programmer's Introduction to C++

© Ray Lischner 2020

R. LischnerExploring C++20https://doi.org/10.1007/978-1-4842-5961-0_54

54. Partial Template Specialization

Ray Lischner¹ 

(1)

Ellicott City, MD, USA

 

Explicit specialization requires you to specify a template argument for every template parameter, leaving no template parameters in the template header. Sometimes, however, you want to specify only some of the template arguments, leaving one or more template parameters in the header. C++ lets you do just that and more, but only for class templates, as this Exploration describes.

Degenerate Pairs

The standard library defines the std::pair<T, U> class template in the <utility> header. This class template is a trivial holder of a pair of objects. The template arguments specify the types ...