Martin Leitner‑Ankerl

Visual Studio C++ 2015 Compiler Bug

Found a bug, it has been fixed.

Posted on February 28, 2017

I think I’ve unfortunately found a compiler bug in Visual Studio 2015, all the way back to at least VS2010. Here is the code: [Read More]

Linux Bash Prompt

Elapsed time, errorcode ✘ or ✔, git & svn status, ...

Posted on November 4, 2016

Here is my bash prompt, with the following features: Red ✘ and errorcode if command has failed, otherwise a green ✔. git status (if available) end time of last command precise elapsed time of the previous command red hostname for root Separate line for path and command Subversion support [Read More]

Very Fast HashMap in C++: Benchmark Results (Part 3)

Posted on September 21, 2016

Part 1: Hopscotch & Robin Hood Hashing Part 2: Implementation Variants Part 3: Benchmark Results [Read More]

Very Fast HashMap in C++: Implementation Variants (Part 2)

Posted on September 21, 2016

Part 1: Hopscotch & Robin Hood Hashing Part 2: Implementation Variants Part 3: Benchmark Results [Read More]

Very Fast HashMap in C++: Hopscotch & Robin Hood Hashing (Part 1)

Posted on September 15, 2016

Part 1: Hopscotch & Robin Hood Hashing Part 2: Implementation Variants Part 3: Benchmark Results [Read More]

Analyzing Keto Calculator Demographics

Posted on June 6, 2016

Recently my Keto Calculator has grown huge. So big, that in January 2016 alone I’ve had 222,781 page views. That is a record for my site, and I have no reason to believe that it will slow down anytime soon. In my quest to make all the visitors as happy as possible, I’ve done quite a bit of analysis of my visitors to find out what I need to do with my homepage. Here is some of the data that I have gathered using Google Analytics. [Read More]

Google Analytics Experiments is Buggy

Posted on January 22, 2016

Google Analytics has a very interesting nice feature: it is possible to use it for A/B testing, and in a nice client-side way that just uses javascript. I am using this to improve my keto calculator website. An interesting feature is that google uses a multi-armed bandit implementation, which optimizes the A/B split ratio while optimizing. [Read More]

Body Fat Comparison Pictures

Posted on January 4, 2016

Here is a collection of visual body fat charts. Use these to estimate your personal body fat for the keto calculator. See below for men. [Read More]

Beautiful Git Logs

Posted on December 22, 2015

git has a very configurable logging options. I’ve played a while with the configuration, and found an awesome alias that looks just beautiful. It only works as of git 1.8.3 (March 24, 2013) because it uses auto coloring. [Read More]

Bin Picking

Posted on June 16, 2014

Some robot stuff I’ve been working on. [Read More]

Via Ferrata Drachenwand 2013

Posted on June 16, 2014

[Read More]

Calculate How Much Of What You Should Eat

Posted on November 14, 2012

I proudly present: the Keto Calculator. [Read More]

Tags:

keto

Actioncam Videos

Posted on July 28, 2012

Here are two videos I’ve done with my awesome action cam: [Read More]

Cholesterol and Heart Disease

Posted on June 24, 2012

Is high cholesterol bad? [Read More]

FreeArc Compression Settings

Posted on June 7, 2012

I have been playing around with compression tools for quite a while, and FreeArc is one of the best of the bunch. It has the best compression / runtime ratio of any compression tool I know. Here are two parameter sets I especially like: [Read More]

Your Brain on a Ketogenic Diet

Posted on June 7, 2012

With all the focus on the weight loss effect of a low carb high fat / ketogenic diet, while appropriate because the weight loss is indeed often dramatic, many other potential benefits are often overlooked. In April 2012 an article “The Ketogenic Diet as a Treatment Paradigm for Diverse Neurological Disorders” was published that nicely summarizes what’s currently know about the effects a ketogenic diet has on multiple neurological problems. Here is a summary of this paper: [Read More]

Tags:

keto

ReconstructMe Public Beta

Posted on February 25, 2012

On Monday, February 27th, ReconstructMe will be released to the masses! [Read More]

Optimized Approximative pow() in C / C++

Posted on January 25, 2012

Mostly thanks to this reddit discussion, I have updated my pow() approximation for C / C++. I have now two different versions: [Read More]

Chunky bacon

Posted on January 15, 2012

Since I blog a mixture of health and programmnig, my old tagline May all your work reduce to O(1) just didn’t cut it any more. Fortunately I have a found a perfect replacement: [Read More]

Low Carb High Fat -- Big Video Roundup

Posted on January 15, 2012

So you want to get healthy, lose weight, or both? Then the Low Carb High Fat diet might be for you, but please judge for yourself. This page is merely an attempt to collect the most important and interesting talks/presentations about this general topic. In a nutshell, it seems carbohydrates are bad for your body, and fats are good. If you think this is crazy, I invite you to do some research on your own. Educate yourself, your body will thank you. [Read More]