Erik Zenker erikzenker

This is a manual for OSX like touchpad gestures on arch linux for the awesome window manager. It describes how to trigger awesome actions on swiping with three fingers on the touchpad.

Install libinput dependencies pacaur -S sf86-input-libinput libinput-gestures
Add current user to input group sudo gpasswd -a $USER input

Boost Hana Cookbook

All receipies use the following include and namespace:

#include <boost/hana.hpp>
namespace bh = boost::hana;

Best Practice

use make_basic_tuple over make_tuple since a basic_tuple is more compile time efficient.

Clang Compile Time Cookbook

In this cookbook I will discuss several techniques to reduce the compile time of the llvm frontend clang. I will put the focus on heavy template and constexpr code.

Clang Tools Pipeline

First it is important to understand the internals of clang. Clang is a collection of tools which are pipelined.

Preprocessor

Performs the actions of the C preprocessor
The command line option -E stops clang after this stage

DIY Solar Power System

In this document I want to describe my progress building an own solar load controller.

Problem

There exist a lot of solar load controller which you can use to build a simple solar power system. Usualy, these load controller do not provide open and well documented interfaces to access data such as:

Solar panel voltage/current
Battery voltage
Consumer current

	// API Documentation was created based on the presentation of Herb Sutter on CppCon 2018:
	// https://www.youtube.com/watch?v=80BZxujhY38
	// and the original propsal:
	// http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2018/p0707r3.pdf
	// and test from the implementation repo
	// https://github.com/asutton/clang/tree/095a810d0514ccc9b3ea66c546a2adc7384449ca/test/CXX/meta

	// Create a meta class
	template <typename T>
	constexpr void meta_class(T source){