Beyond the C++ Standard Library: An Introduction to Boost

Part III. Function Objects and Higher-Order Programming

The following four libraries have the potential of changing the way you look at programming in C++ forever. Although function objects are not a novel concept, especially for people who have long been using and customizing the algorithms in the Standard Library, the libraries covered in this part of the book take function objects to a whole new level of abstraction. There are areas in C++ that are sometimes considered to be shortcomings when employing certain designs, such as the seemingly unavoidable proliferation of small function objects when using Standard Library algorithms. One must never forget that in C++, it's best to not be (too) judgmental of the language itself, for it was designed ...