MattPD

C++ links: Type Erasure

https://github.com/MattPD/cpplinks / C++ / Type Erasure

(draft; work in progress)

Type Erasure

• Back to Basics: Type Erasure
  • CppCon 2019; Arthur O'Dwyer

MattPD

Program Analysis Resources

(draft; work in progress)

See also:

• Compilers
  • correctness
• Program analysis:
• Dynamic analysis - instrumentation, translation, sanitizers

ernsheong

Access macOS localhost from IE or Edge within Parallels Desktop

This issue is so infuriating that I'm going to take some time to write about it.

1. MOST IMPORTANT. Your local development server must be bound to IP address 0.0.0.0. Some do this by default, but many don't. You need to make sure that you run your local server with correct IP bindings. You may need to provide additional flags to your serve commands e.g. polymer serve --hostname domain.local, hugo serve --bind 0.0.0.0. If you use a named domain like domain.local, it has to be defined in /etc/hosts and pointing at 0.0.0.0.

2. My Parallels setting is using Shared Network, nothing special there.

3. Open macOS Terminal and type ifconfig. Look for the value under vnic0 > inet. It is typically 10.211.55.2.

toomasv

Red [
	Author: "Toomas Vooglaid"
	Date: 25-9-2017
	Description: {Experiments with L-System}
	Last-update: 26-9-2017
	Uses: {%models.red https://gist.github.com/toomasv/313e1d8583fb159428222651b76926cd}
	Repo: https://github.com/toomasv/l-system 
]
context [
	ctx: self

ptarjan

Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

mydoghasworms

Red [needs: view]

turtle: #()

win: layout [ panel [ 
                tfield: base 500x500 white draw [] 
                origin tfield/offset tlayer: base 500x500 255.255.255.255 draw [] ]
              panel [
                text "History" return history: text-list 200x350 data [] return 
                panel [ button "Save" [save request-file history/data]

tahmidsadik

How to Completely Remove Android Studio


Execute these commands from the terminal

rm -Rf /Applications/Android\ Studio.app
rm -Rf ~/Library/Preferences/AndroidStudio*
rm ~/Library/Preferences/com.google.android.studio.plist
rm -Rf ~/Library/Application\ Support/AndroidStudio*
rm -Rf ~/Library/Logs/AndroidStudio*

smarr

Introductory Material

• Add Graal JIT Compilation to Your JVM Language in 5 Steps, A Tutorial http://stefan-marr.de/2015/11/add-graal-jit-compilation-to-your-jvm-language-in-5-easy-steps-step-1/

• The SimpleLanguage, an example of using Truffle with great JavaDocs. It is the officle getting-started project: https://github.com/graalvm/simplelanguage

• Truffle Tutorial, Christan Wimmer, PLDI 2016, 3h recording https://youtu.be/FJY96_6Y3a4 Slides

apeckham

# download from http://sourceforge.net/projects/aria2/files/stable/aria2-1.19.0
sudo yum install gcc-g++ openssl-devel -y
tar xvfj aria2...tar.bz2
./configure
make -j$(nproc)
sudo make install

pablosalgadom

So i was using Rails 4.1 with Unicorn v4.8.2 and when i tried to deploy my app it doesn't start properly and into the unicorn.log file i found this error message:

  "app error: Missing `secret_key_base` for 'production' environment, set this value in `config/secrets.yml` (RuntimeError)"

After a little research i found that Rails 4.1 change the way to manage the secret_key, so if we read the secrets.yml file located at exampleRailsProject/config/secrets.yml (you need to replace "exampleRailsProject" for your project name) you will find something like this:
  
  # Do not keep production secrets in the repository,
  # instead read values from the environment.
  production:
    secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>