In case you missed it, from Functional C++:

Continuation Passing Style

by whanhee

From the article:

Continuation passing style (CPS) is a method of programming which allows for intricate manipulation of control flow while still maintaining functional purity.

Continuations can be used to implement a whole range of things from exceptions to coroutines, but today we’ll just introduce them and a few interesting and useful concepts...

As summarized in Wikipedia: "continuation-passing style (CPS) is a style of programming in which control is passed explicitly in the form of a continuation."