Rainer Grimm@rainer_grimm

Training, Coaching, and Technology Consulting; Author of a few C++ books, Speaker, and Blogger

 Rottenburg
modernescpp.com/
Joined June 2014
386 Photos and videos
Check out my latest article: Charity run for ALS linkedin.com/pulse/charity-r… via @LinkedIn

Charity run for ALS

Tomorrow, on the 28th, there will be a charity run for ALS in Rottenburg. The course is exactly 1 km long.

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Check out my latest article: Small Safety Improvements in the C++ 26 Core Language linkedin.com/pulse/small-saf… via @LinkedIn

Small Safety Improvements in the C++ 26 Core Language

Safety is an important concern in C++26. Contracts are probably the most important feature for safety.

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Check out my latest article: My ALS Journey (30/n): Cippi at the CppCon linkedin.com/pulse/my-als-jo… via @LinkedIn

My ALS Journey (30/n): Cippi at the CppCon

This week was very exciting for Cippi. She visited CppCon in Aurora, near Denver.

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Rainer Grimm retweeted
Jason Turner@lefticus
20 Sep 2025
Cippi and Alise are making their way back across the ocean together in time for NDC TechTown! @rainer_grimm
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Rainer Grimm retweeted
Jason Turner@lefticus
19 Sep 2025
CiPPi is helping give another keynote! #als @rainer_grimm
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Rainer Grimm retweeted
Diego@diegorlosada
15 Sep 2025
We have an amazing visitor today at the @conan_io booth at @CppCon: @rainer_grimm Cippi!
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Check out my latest article: Contracts: Evaluation Semantic linkedin.com/pulse/contracts… via @LinkedIn

Contracts: Evaluation Semantic

After briefly presenting the details of contracts in my last article, “Contracts: A Deep Dive“, I would like to take a closer look at the very interesting Evaluation Semantic in today’s article. If a...

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Check out my latest article: My ALS Journey (29/n): I feel Good linkedin.com/pulse/my-als-jo… via @LinkedIn

My ALS Journey (29/n): I feel Good

I often receive messages asking about my health and wishing me well. I am very happy to receive these messages and just want to reply: I feel good.

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Check out my latest article: My ALS Journey (28/n): Bureaucracy – the German Disease linkedin.com/pulse/my-als-jo… via @LinkedIn

My ALS Journey (28/n): Bureaucracy – The German Disease

Today I want to write about a sad topic. Bureaucracy in the German healthcare system is becoming increasingly absurd.

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Check out my latest article: Data-Parallel Types: Algorithms linkedin.com/pulse/data-para… via @LinkedIn

Data-Parallel Types: Algorithms

The data-parallel types library has four special algorithms for SIMD vectors. The four special algorithms are min, max, minmax, and clamp.

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Check out my latest article: My ALS Journey (27/n): An Emergency Call linkedin.com/pulse/my-als-jo… via @LinkedIn

My ALS Journey (27/n): An Emergency Call

Firstly, I would like to say that I am doing very well and have made a full recovery from my incident. However, I would like to share my story to make you aware of how cruel the disease ALS can be.

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Check out my latest article: Data-Parallel Types: Reduction linkedin.com/pulse/data-para… via @LinkedIn

Data-Parallel Types: Reduction

In this article, I will discuss reduction and mask reduction for data-parallel types. Reduction A reduction reduces the SIMD vector to a single element.

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Check out my latest article: My ALS Journey (26/n): Cippi’s first Adventures linkedin.com/pulse/my-als-jo… via @LinkedIn

My ALS Journey (26/n): Cippi’s first Adventures

Cippi went on her first big trip. First, she went to Belgium to visit Tom Tesch, and then she flew to Toronto to CppNorth, where she was warmly welcomed by Kate Gregory.

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Check out my latest article: Cippi's Latest Adventures linkedin.com/pulse/cippis-la… via @LinkedIn

Cippi's Latest Adventures

Here you can read about Cippi's latest adventures in Belgium and at CppNorth: https://www.modernescpp.

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Check out my latest article: Data-Parallel Types: simd_mask linkedin.com/pulse/data-para… via @LinkedIn

Data-Parallel Types: simd_mask

Thanks to simd_mask, conditional execution of operations on data-parallel types is possible. Unfortunately, in my last article, Data-Parallel Types – A First Example, I forgot to introduce one of the...

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Check out my latest article: My ALS Journey (25/n): Small and Big Hurdles linkedin.com/pulse/my-als-jo… via @LinkedIn

My ALS Journey (25/n): Small and Big Hurdles

Today, I want to share with you some of my everyday problems. >> My ALS Journey so far << New Authentication at the Bank My bank has suddenly requested that I authenticate myself using a type of...

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Check out my latest article: My ALS Journey (24/n): Cippi’s World Tour linkedin.com/pulse/my-als-jo… via @LinkedIn

My ALS Journey (24/n): Cippi’s World Tour

Many of you want to get in touch with Cippi. So here is a brief overview of her travel plans for 2025.

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Check out my latest article: Data-Parallel Types (SIMD) linkedin.com/pulse/data-para… via @LinkedIn

Data-Parallel Types (SIMD)

The data-parallel types (SIMD) library provides data-parallel types and operations on them. Today, I want to take a closer look at this.

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Check out my latest article: Read-copy-update (RCU) linkedin.com/pulse/read-copy… via @LinkedIn

Read-copy-update (RCU)

Read-copy-update is strong in multithreading environments where a data structure is read almost exclusively but rarely written. First of all, what is RCU? The excellent Wikipedia page on Read-copy-...

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Rainer Grimm retweeted
Jason Turner@lefticus
28 May 2025
34.64 km logged today (day 1) (stages 1 and 2) on the Pieterpad. 44.78 euro pledged to ALS research so far!
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