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@jashkenas
jashkenas / semantic-pedantic.md
Last active September 5, 2025 05:32
Why Semantic Versioning Isn't

Spurred by recent events (https://news.ycombinator.com/item?id=8244700), this is a quick set of jotted-down thoughts about the state of "Semantic" Versioning, and why we should be fighting the good fight against it.

For a long time in the history of software, version numbers indicated the relative progress and change in a given piece of software. A major release (1.x.x) was major, a minor release (x.1.x) was minor, and a patch release was just a small patch. You could evaluate a given piece of software by name + version, and get a feeling for how far away version 2.0.1 was from version 2.8.0.

But Semantic Versioning (henceforth, SemVer), as specified at http://semver.org/, changes this to prioritize a mechanistic understanding of a codebase over a human one. Any "breaking" change to the software must be accompanied with a new major version number. It's alright for robots, but bad for us.

SemVer tries to compress a huge amount of information — the nature of the change, the percentage of users that wil

@john-science
john-science / build_your_own_lisp.md
Last active September 18, 2024 08:50
Build Your Own LISP

Build Your Own LISP

I had fun building my own LISP (Slow Loris). The project was extremely easy to get off the ground, because there a ton of resources to do just this. I thought it might be handy to have a little links round-up, based on my research.

In Python

There are already several good projects out there on writing your own LISP in Python.

Peter Norvig's LisPy

@KdotJPG
KdotJPG / OpenSimplex2S.java
Last active November 24, 2025 18:10
Visually isotropic coherent noise algorithm based on alternate constructions of the A* lattice.
/**
* K.jpg's OpenSimplex 2, smooth variant ("SuperSimplex")
*
* More language ports, as well as legacy 2014 OpenSimplex, can be found here:
* https://github.com/KdotJPG/OpenSimplex2
*/
public class OpenSimplex2S {
private static final long PRIME_X = 0x5205402B9270C86FL;
@andrew8088
andrew8088 / stringify.js
Last active August 23, 2022 07:54
A simple implementation of JSON.stringify; covers every case I could think of
function stringify(obj) {
if (typeof obj !== 'object' || obj === null || obj instanceof Array) {
return value(obj);
}
return '{' + Object.keys(obj).map(function (k) {
return (typeof obj[k] === 'function') ? null : '"' + k + '":' + value(obj[k]);
}).filter(function (i) { return i; }) + '}';
}
@pakt
pakt / rdwr.py
Created August 15, 2015 10:59
Direct read/write access to Python's memory
#
# read/write access to python's memory, using a custom bytearray.
# some code taken from: http://tinyurl.com/q7duzxj
#
# tested on:
# Python 2.7.10, ubuntu 32bit
# Python 2.7.8, win32
#
# example of correct output:
# inspecting int=0x41424344, at 0x0228f898
@acapola
acapola / aes-ni.c
Created August 31, 2015 14:42
AES128 how-to using GCC and Intel AES-NI
#include <stdint.h> //for int8_t
#include <string.h> //for memcmp
#include <wmmintrin.h> //for intrinsics for AES-NI
//compile using gcc and following arguments: -g;-O0;-Wall;-msse2;-msse;-march=native;-maes
//internal stuff
//macros
#define DO_ENC_BLOCK(m,k) \
do{\
@paulirish
paulirish / what-forces-layout.md
Last active December 5, 2025 10:45
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
@plasma-effect
plasma-effect / a.md
Created December 3, 2015 18:23
constexpr多倍長整数

皆様おはようございます。@plasma_effector です。この記事はAizuアドベントカレンダー4日目です。 #自己紹介 数学系の3回生です。何も考えず登録した後Aizuとあんま関係ないと気付きましたが気にせずやります。
普段はC++とC#でなんか作ってます。たまにTypeScriptでゲームを作ります。 #やること C++のconstexprには様々な可能性が存在します。
多倍長整数をコンパイル時に使えたらいいなぁって思ったのでconstexprな多倍長整数を作ろうって思いました。 #補足 constexprとは ※この項は普段C++使ってる方は読み飛ばしてもらって構いません
C++11で追加された定数評価に関する指定子です。gccとclangとmsvcでは使えます。

@spalladino
spalladino / mysql-docker.sh
Created December 22, 2015 13:47
Backup and restore a mysql database from a running Docker mysql container
# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql
# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE
@mmozeiko
mmozeiko / incbin.c
Last active November 21, 2025 11:22
Include binary file with gcc/clang
#include <stdio.h>
#define STR2(x) #x
#define STR(x) STR2(x)
#ifdef _WIN32
#define INCBIN_SECTION ".rdata, \"dr\""
#else
#define INCBIN_SECTION ".rodata"
#endif