Digests » 332


Build your programming skills with Manning

Looking to upgrade your programming skills? Here’s something that will really help—Manning Publications are offering an exclusive 40% off your entire order at manning.com! Just use the code progdig40 when you checkout.

this week's favorite

Good Code Design From Linux/Kernel

Learn how Linux/FFmpeg C partial codebase is organized to be extensible and act as if it were meant to have “polymorphism”. Specifically, we’re going to briefly explore how Linux concept of everything is a file works at the source code level as well as how FFmpeg can add support fast and easy for new formats and codecs.

10 Ways to Tweak Slow SQL Queries

Before you rage quit or call in your DBA, check these things aren’t slowing down your SQL query. A few tweaks could be all you need to get things working.

Google Interview Problems: Ratio Finder

Welcome to yet another installment of my series on interview questions I used to ask at Google before they were leaked and banned. I’ve since left being a software engineer at Google and moved on to being an engineering manager at Reddit, but I’ve still got a few great questions to share. So far I’ve covered dynamic programming, matrix exponentiation, and query synonymity, and this time around I’ve got a brand new question for us to dig into.

curl exercises

curl is a command line tool for making HTTP requests. I like it because it’s an easy way to test that servers or APIs are doing what I think, but it’s a little confusing at first!

Is COBOL holding you hostage with Math?

When we talk about COBOL the first question on everyone’s mind is always Why are we still using it in so many critical places? Banks are still running COBOL, close to 7% of the GDP is dependent on COBOL in the form of payments from the Centers for Medicare & Medicaid Services, The IRS famously still uses COBOL, airlines still use COBOL (Adam Fletcher dropped my favorite fun fact on this topic in his Systems We Love talk: the reservation number on your ticket used to be just a pointer), lots of critical infrastructure both in the private and public sector still runs on COBOL.

Join over 15,200 readers for a free weekly email with fresh news, articles and tutorials.