Fold Expressions
With fold expressions, you can implement Haskell functions foldl, foldr, foldl1, and foldr1 directly in C++. These four functions successively reduce a list to a single value.
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Entries by Rainer Grimm
Recursion, List Manipulation, and Lazy Evaluation
The remaining three characteristics of functional programming are told quite quickly: Recursion, manipulation of lists, and lazy e Ihop valuation.
Pure Functions
Pure functions are pretty similar to mathematical functions. They are the reason that Haskell is called a pure functional programming language.
Immutable Data
A key to purely functional languages is that their data are immutable. Therefore, assignments such as x= x+1 or ++x are not possible in the purely functional language Haskell. The consequence is that Haskell supports no loops like for, while, or until. They are based on the modification of a loop variable. Haskell does not […]
Higher-Order Functions
Higher-order functions are the pendant to First-Class Functions because higher-order functions can take functions as an argument or return them as a result.
First-Class Functions
One of the characteristics of functional programming is first-class functions. First-class functions behave like data and are heavily used in the Standard Template Library.
The Definition of Functional Programming
The definition of functional programming is relatively easy. Functional programming is programming with mathematical functions. Is that all? Of course, not!
Functional in C++17 and C++20
Which functional feature can we expect with C++17, and for which functional feature can we hope with C++20? This is precisely the question I will concisely answer in this post.
Functional in C++11 and C++14: Dispatch Table and Generic Lambdas
My favorite example, the dispatch table, shows how nicely the features in modern C++ work together. A dispatch table is a table of pointers to functions. In my case, it is a table of handles for polymorphic function wrappers.
Functional in TR1 and C++11
This post continues our journey through the functional features of classical, modern, and future C++. Today, we stop in the present.