WeAreDevelopers Logo WeAreDevelopers
Sign in
For You LIVE
World Congress 2025 • Aug 20, 2025 • Session details

Functional Programming in C++

Jonathan Müller

Eliminate mutable state without sacrificing execution speed. Discover how C++20 ranges and monadic error handling merge functional programming safety with hardware-native performance.

Pause
Mute Enter Fullscreen
#1 about 3 min

Introduction to functional programming concepts in C++

Adopting declarative programming paradigms eliminates state mutations and simplifies reasoning in C++ code.

#2 about 5 min

Filtering and transforming ranges with lazy evaluation views

Replacing eager intermediate containers with C++20 views enables efficient and stateless lazy evaluation.

#3 about 3 min

Finding pair sums using Cartesian products and parallel algorithms

Defining combinations with lazy Cartesian products allows seamless optimization through standard parallel algorithms.

#4 about 3 min

Applying chunking patterns to identify continuous subsequences lazily

Using chunk boundaries based on predicates simplifies the extraction of subranges without manual state tracking.

#5 about 3 min

Reversing string words with conditional range pipelines and subsets

Combining splitting and conditional reverse operations cleanly transforms strings without eager memory allocations.

#6 about 1 min

Summarizing range composition patterns and standard library algorithms

Applying standard views minimizes manual loops when manipulating collections and data streams.

#7 about 7 min

Handling errors functionally using expected values and pipeline continuations

Modeling failures as concrete return values prevents unpredictable control flow paths caused by exceptions.

#8 about 4 min

Separating I/O and concurrency from computation using execution actions

Defining I/O operations as deferred action lists eliminates side effects and simplifies software testing.

#9 about 2 min

Simplifying monads as composable value boxes within C++

Treating ranges, expected types, and I/O objects as monads unifies their composition through common transform operations.

Matching moments

8:10 min

Functional programming principles and practical application in C#

Simon Painter · LIVE

2:55 min

Defining the core principles of functional programming

Jemima Abu · World Congress 2022

2:03 min

Building scalable applications with reactive programming

Josh Long · World Congress 2022

2:10 min

Using higher-order functions to manipulate data collections

Tobias Schröder · World Congress 2021

1:30 min

Benefits of writing encapsulated functional code

Jemima Abu · World Congress 2022

2:28 min

Functional programming roots and security focus

Arthur Breitman Arthur Breitman · World Congress 2021

More from World Congress 2025

GenAI Security: Navigating the Unseen Iceberg thumbnail
24:33
11 months ago

GenAI Security: Navigating the Unseen Iceberg

Maish Saidel-Keesing

Behind the Code: How Women Are Powering the Future of AI thumbnail
30:28
about 1 year ago

Behind the Code: How Women Are Powering the Future of AI

Alexandra Wudel, Laura Moritz, Madalina Florean

The AI Hype Filter: What’s Real, What’s Investable, What’s Noise? thumbnail
28:12
about 1 year ago

The AI Hype Filter: What’s Real, What’s Investable, What’s Noise?

Justus Lumpe, Konstantin Vinogradov, Nils Eiteneyer, Stephan Wirris

AI in Leadership: How Technology is Reshaping Executive Roles thumbnail
28:19
about 1 year ago

AI in Leadership: How Technology is Reshaping Executive Roles

Bernd Datler, Jasmin Kaiser, Jeff Hausmann, Sonja Alvarez

The AI-Ready Stack: Rethinking the Engineering Org of the Future thumbnail
28:09
about 1 year ago

The AI-Ready Stack: Rethinking the Engineering Org of the Future

Alex Laubscher, Jan Oberhauser, Keno Dreßel, Mirko Novakovic

AI Sovereignty: What Does It Take? thumbnail
29:13
about 1 year ago

AI Sovereignty: What Does It Take?

Boris Hecker, Clemens Wasner, Robin Hermann, Sonja Alvarez

Upcoming sessions on this topic

Open session

World Congress 2026 North America

September 24, 2026 · 16:10–16:40

Outdoor Stage

When Humans Stop Writing Code: Rethinking Languages, Compilers, and Responsibility

Simon Auer

Organizer of flutter vienna meetup and CEO of marqably

Simon Auer
Open session

World Congress 2026 North America

September 24, 2026 · 16:50–17:20

Stage 3

Merging at Scale: From Broken Builds to Green Mainline

Manjari Akella, Preetam Dwivedi

Manjari Akella
Preetam Dwivedi
Open session

World Congress 2026 North America

September 25, 2026 · 11:00–11:30

Stage 7

Beyond Vibe Coding: An AI Builder’s Guide to Migrating 10k+ React Components

Shubham Chaurasia

Senior Software Engineer at Meta

Shubham Chaurasia
Open session

World Congress 2026 North America

September 25, 2026 · 12:55–13:25

Stage 7

The spectrum of agentic coding: From vibe coding to high-quality software engineering

YK Sugi

Developer Experience Manager at Eventual

YK Sugi
Open session

World Congress 2026 North America

September 23, 2026 · 13:00–13:30

Stage 2

Parallelize Your Development with GitHub Copilot

Pamela Fox

Principal Cloud Advocate, Microsoft

Pamela Fox
Open session

World Congress 2026 North America

September 24, 2026 · 15:30–16:00

Stage 7

Beyond Vibe Coding: Using CLI Tools as Your AI Counterpart in Pair Programming

Ron Veen

Java enthusiast and Special agent for Team Rockstars IT

Ron Veen

Related videos

Down the Oregon Trail with Functional C# thumbnail
46:08
LIVE • over 3 years ago

Down the Oregon Trail with Functional C#

Simon Painter

F#, path to functional enlightenment thumbnail
29:15
World Congress 2023 • almost 3 years ago

F#, path to functional enlightenment

Onur Gumus

A Guide To Functional Programming thumbnail
25:29
World Congress 2022 • about 4 years ago

A Guide To Functional Programming

Jemima Abu

C++ Features You Might Not Know thumbnail
24:13
World Congress 2023 • about 3 years ago

C++ Features You Might Not Know

Jonathan Müller

C++ in constrained environments thumbnail
1:00:16
World Congress 2022 • about 4 years ago

C++ in constrained environments

Bjarne Stroustrup

The Design and Evolution of C++ thumbnail
1:01:15
World Congress 2022 • about 4 years ago

The Design and Evolution of C++

Bjarne Stroustrup

Related articles

From learning to earning

Jobs that call for the skills explored in this talk.