Jonathan Müller

C++, compilers, and programming languages. Software engineer @LSEGplc, chair for std::ranges at @isocpp.

@[email protected]

[Jonathan Müller @foonathan]

I'll be speaking at C++Now about functional composition beyond monads!

I hope to see you in Aspen, too — C++Now is by far the best C++ conference.

[C++Now @cppnow]

We are pleased to announce 50 outstanding presentations from C++ experts that will be taking place at C++Now 2026 from 4th - 8th May

Read the full announcement - https://t.co/dN3BX667z4

#cpp #cplusplus #programming #coding

[Jonathan Müller @foonathan]

@Revolucion077 @mineigi06 @BetterLinux No, it's just a grocery store in the city center, there's no space for parking.

[Jonathan Müller @foonathan]

@Revolucion077 @mineigi06 @BetterLinux I live five minutes from a grocery store in Germany that doesn't even have parking spaces. The entire customer base walks to the store.

[Barry Revzin @BarryRevzin]

Sometimes, working on C++ is frustrating.

Other times, people gives talks about how a feature you pushed through is "really magical but also really convenient."

Those latter moments make the former moments worthwhile.

Check out https://t.co/w43VjycVA4

[C++Now @cppnow]

Missing (and Future?) C++ Range Concepts - by @foonathan- C++Now 2025

https://t.co/x2ngut4Cbp

#Coding #Cplusplus #Cpp #Programming

[CppOnline @cpponlineconf]

Keynote: Functional Programming in C++ - by @foonathan - C++Online 2025

https://t.co/CCSsD5Eurv

#Coding #Cplusplus #Cpp #cpponline

[Jonathan Müller @foonathan]

I've tagged a new release of lexy, my C++ parser library. The last release was December 2022, so this was long overdue:

https://t.co/OFxuet0NM6

#cpp #cplusplus

[C++ on Sea @cpponsea]

C++OnSea 2025 SESSION ANNOUNCEMENT: Missing (and future?) C++ Range Concepts by @foonathan

Register now at https://t.co/EGtQ3ae8uc

https://t.co/THpen47l8i

#Algorithms #Cplusplus #Cpp #Ranges

[Jonathan Müller @foonathan]

Next week at @cppnow I'm giving two talks:

First, my "Overenginering max(a, b)" talk, which is just fun metaprogramming.

Then, a new talk "Missing (and future?) range concepts" which is turning out really great, I can't wait to give it: https://t.co/8f8kFnKGnU

#cpp #cplusplus

[C++Now @cppnow]

C++Now 2025 SESSION ANNOUNCEMENT: Missing (and Future?) C++ Range Concepts by @foonathan

https://t.co/k2RliDM4Ey

Register now at https://t.co/qjWx2xwrxC

#Algorithms #Cpp #Genericprogramming

[Jonathan Müller @foonathan]

I'm going to be speaking about missing and potentially future C++ range concepts at C++Now:

https://t.co/8f8kFnKGnU

#cpp #cplusplus

[Jonathan Müller @foonathan]

I published my trip report about the Hagenberg meeting last week: https://t.co/UUYtflGQ9r

I was wrong about the potential for dangerous optimizations with contracts and ODR. The behavior is not allowed; the blog post has been updated.

#cpp #cplusplus

[Jonathan Müller @foonathan]

I've written a trip report about last week's C++ committee meeting in Hagenberg, Austria

https://t.co/UUYtflGijT

#cpp #cplusplus

[Jonathan Müller @foonathan]

I will be giving a keynote about functional programming at @cpponlineconf!

https://t.co/lX7F0gcJ19

#cpp #cplusplus

[Jonathan Müller @foonathan]

@victor_explore @hamptonism The thing needs to be normalized to 1, and the integral over the entire number line of e^-(x^2) is sqrt(pi), so you have to divide it out. And the integral is sqrt(pi) because you can turn it into a 2D integral of a rotated 1D integral, where the rotation adds a pi factor.

[Jonathan Müller @foonathan]

I'm going to be speaking at the C++ meetup in Helsinki @CppHelsinki on February 4th!

Overengineering `max(a, b)`: Mixed Comparison Functions, Common References, and Rust's Lifetime Annotations

https://t.co/zlLMJ6y3SO

#cpp #cplusplus

[CppCon @CppCon]

We have just released a new CppCon 2024 Video!

Back to Basics: Functional Programming and Monads in C++ - by @foonathan- CppCon 2024

https://t.co/AmtoCmeOdm

#Coding #Cplusplus #Cpp #cppcon

[Jonathan Müller @foonathan]

@tsoding Loved your stream about cuik/TB, thanks! If you like this, I have written a fast stack-based VM designed for CTFE. It has coroutines, optional GC, and also experimental codegen using QBE. You can use a simple C API or a textual IR as input: https://t.co/dZOIY1cQSX

[Jonathan Müller @foonathan]

I'm giving a keynote at @cpponlineconf!

[CppOnline @cpponlineconf]

C++Online 2025 SESSION ANNOUNCEMENT: Functional Programming in C++ by @foonathan

Register now at https://t.co/S7KcM1Mjyo

https://t.co/iRsq2nZDdA

#Cplusplus #Cpp #FunctionalProgramming #Programming

[Jonathan Müller @foonathan]

I've written a trip report about the recent ISO C++ committee meeting: https://t.co/i9YWJt1TK6

#cpp #cplusplus