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@fschutte
fschutte / create-keys-and-certificates.kts
Created December 9, 2018 13:46
Kotlin script for creating keys and certificates
import sun.security.x509.*
import java.io.File
import java.math.BigInteger
import java.security.*
import java.security.cert.X509Certificate
import java.util.*
/**
* Simple script for generating keys and certificates as needed to connect to the ING API.
@druska
druska / engine.c
Created September 17, 2018 15:18
Quant Cup 1's winning order book implementation
/*****************************************************************************
* QuantCup 1: Price-Time Matching Engine
*
* Submitted by: voyager
*
* Design Overview:
* In this implementation, the limit order book is represented using
* a flat linear array (pricePoints), indexed by the numeric price value.
* Each entry in this array corresponds to a specific price point and holds
* an instance of struct pricePoint. This data structure maintains a list
@NYKevin
NYKevin / accounting.sql
Last active May 18, 2026 17:16
Basic double-entry bookkeeping system, for PostgreSQL.
CREATE TABLE accounts(
id serial PRIMARY KEY,
name VARCHAR(256) NOT NULL
);
CREATE TABLE entries(
id serial PRIMARY KEY,
description VARCHAR(1024) NOT NULL,
amount NUMERIC(20, 2) NOT NULL CHECK (amount > 0.0),
-- Every entry is a credit to one account...
@macintux
macintux / erlang-resources.md
Last active December 15, 2025 22:31
Erlang online resources

This is not intended to be comprehensive or authoritative, just free online resources I've found valuable while learning more about Erlang.

Joe Armstrong's Swedish Institute of Computer Science homepage (Wayback Machine)

https://web.archive.org/web/20070429181654/http://www.sics.se/~joe/

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@ynaoto
ynaoto / gist:5228280
Last active June 21, 2017 07:23
Install 'mosh' to CentOS 6
rpm -Uvh http://ftp.jaist.ac.jp/pub/Linux/Fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm
yum install mosh –enablerepo=epel
@anacrolix
anacrolix / striter.py
Created September 26, 2012 14:35
A Python IO class wrapping an iterable of strings.
import io
class StringIteratorIO(io.TextIOBase):
def __init__(self, iter):
self._iter = iter
self._left = ''
def readable(self):
return True
@EkremGungormez
EkremGungormez / gist:2724210
Created May 18, 2012 09:17
abap inner join example
TABLES: MKPF,
MSEG.
DATA: BEGIN OF gs_ara,
mblnr type mkpf-mblnr,
mjahr TYPE mkpf-mjahr,
budat TYPE mkpf-budat,
tcode2 TYPE mkpf-tcode2,
usnam TYPE mkpf-usnam,
cpudt TYPE mkpf-cpudt,
@idavis
idavis / Use-Impersonation.ps1
Created March 5, 2011 18:52
Impersonate a user and execute a script block as that user
param( [ScriptBlock] $scriptBlock )
<#
.SYNOPSIS
Impersonates a user and executes a script block as that user. This is an interactive script
and a window will open in order to securely capture credentials.
.EXAMPLE
Use-Impersonation.ps1 {Get-ChildItem 'C:\' | Foreach { Write-Host $_.Name }}
This writes the contents of 'C:\' impersonating the user that is entered.
#>