Complete Modern C++ - Folding Basics

The video tutorial explains the concept of folding, also known as reduce or accumulate, which applies a binary operator to a list of values recursively. It discusses how folding can be implemented in C++ using variadic templates and recursion, with an example of summing a list of elements. The tutorial also highlights the use of STL's accumulate function for folding and introduces fold expressions in C++17, which simplify the process by eliminating the need to overload variadic templates.

What role does recursion play in the folding process?

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What are fold expressions introduced in C++17, and how do they differ from traditional variadic templates?

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