Programming Leftovers

posted by Roy Schestowitz on Jul 17, 2023

• Precompiled headers

  C/C++ projects can benefit from using precompiled headers to improve compile time. GCC added support for precompiled headers in 2003 (version 3.4), and the current documentation can be found at https://gcc.gnu.org/onlinedocs/gcc/Precompiled-Headers.html.

  This article focuses on Clang precompiled headers (PCH). Let's begin with an example.

• How To Modularize an Existing Shiny App

  There are multiple tutorials available online on writing modular Shiny apps. So why one more? Well, when I just started with building modular apps myself, these didn’t do much for me. So I really only learned how to write modules when I had an opportunity to team up with an experienced R Shiny developer. The reason I guess is that Shiny modules is an advanced topic, and you typically get to writing modules only when you finally need to scale your apps – and keep opportunities for further scaling open. This typically means when your app goes into production. By then you probably have already developed multiple apps, and switching over to a way of thinking required to write modules may be challenging. If you don’t know what modules are, I recommend starting here and then coming back to this post. Otherwise, read on.

• Brute-Force ZIP Password Cracking with zipdump.py: FP Fix

  In diary entry "Brute-Force ZIP Password Cracking with zipdump.py" I wrote the following: [...]

• [Old] Welcome to gqrx

  Gqrx is an open source software defined radio receiver (SDR) powered by the GNU Radio and the Qt graphical toolkit.